Entries |
Document | Title | Date |
20080238804 | MULTI-BAND HIGHLY ISOLATED PLANAR ANTENNAS INTEGRATED WITH FRONT-END MODULES FOR MOBILE APPLICATIONS - An embodiment of the present invention provides an apparatus, comprising a multi-band highly isolated planar antenna directly integrated with a front-end module (FEM). | 10-02-2008 |
20080246682 | Dipole Antenna with Improved Performance in the Low Frequency Range - A dipole antenna is provided herein with improved performance at a lower end of the antenna's operating frequency range. According to one embodiment, the dipole antenna may include a plurality of antenna elements coupled to impedance transformer via a pair of cones and a pair of ears. The dipole antenna may also include a high-pass matching network specifically configured to improve antenna performance at the lower end of the operating frequency range. For example, a first stage of the matching network (i.e., closest to the antenna elements) may include two series capacitors, while a second stage of the matching network (i.e., furthest from the antenna elements) includes an inductor coupled in shunt between the two capacitors. | 10-09-2008 |
20080272977 | Apparatus and Methods for Constructing Antennas Using Vias as Radiating Elements Formed in a Substrate - Antennas are provided which are constructed using one or more conductive via stubs as radiating elements formed in a substrate. The antennas can be integrally packaged with IC chips (e.g., IC transceivers, receivers, transmitters, etc.) to build integrated wireless or RF (radio frequency) communications systems. | 11-06-2008 |
20080291111 | Capacitive Feed Antenna - The present invention seeks to provide an antenna having multiple radiating bands, including a ground plane, a feed plate extending generally parallel to and being spaced from the ground plane by a first distance and having a feed connection extending between the feed plate and the ground plane, at least one radiating element extending generally parallel to and being spaced from the feed plate by a second distance and at least one galvanic connector connecting the at least one radiating element at a first location on the at least one radiating element to the ground plane at a first location on the ground plane, the first location on the ground plane being separated from the feed connection by a third distance, the first, second and third distances being selected to achieve desired impedance matching of the feed plate, and the feed plate feeding the at least one radiating element at a location corresponding to an impedance substantially greater than 50 Ohm at least one band. | 11-27-2008 |
20080297430 | Planar Broadband Antenna - A planar broadband antenna includes a flat elliptical antenna device. The elliptical antenna device includes a central antenna element, a first angular antenna element and a second angular antenna element. The central antenna element is disposed parallel to a support. The angular antenna elements are formed by two opposite segments of the elliptical antenna device and point toward the support. The first angular antenna element is provided with a base point through which a signal is capable of being fed in. An impedance device connects the second angular antenna element to a ground point located near the base point. | 12-04-2008 |
20080309578 | Antenna Using Proximity-Coupling Between Radiation Patch and Short-Ended Feed Line, Rfid Tag Employing the Same, and Antenna Impedance Matching Method Thereof - Provided is an antenna based on proximity coupling between a short-ended microstrip feed line and a radiation patch, an RFID tag including the planar antenna, and an antenna impedance matching method thereof. The antenna includes a radiation patch configured to determine a resonant frequency of the antenna; a ground plate disposed in parallel to the radiation patch; and a feeding part disposed between the radiation patch and the ground plate and configured to provide radio frequency signals to a device connected to the antenna. The feeding part includes a feed line that is formed in a resonance length direction of the radiation patch and proximity-coupled with the radiation patch and one end of the feed line is shorted. The antenna freely controls the resistance and reactance of the antenna impedance independently and efficiently matched to a device connected to the antenna which has a predetermined impedance in wide bands. | 12-18-2008 |
20090002254 | Circularly or Linearly Polarized Antenna - The invention relates to an antenna that produces a radiation pattern that is axisymmetric about a geometrical axis (X) and exhibits a radiation maximum in a plane perpendicular to the direction of said X axis that includes a feed wire extending along said axis (X) from a first end situated level with a conducting surface forming an earth plane of the antenna to a second end that feeds a set of N radiating strands, N being an integer, characterized in that it also includes at least one earth return rod for the strands, said rod linking one of the radiating strands of the set to the earth plane. | 01-01-2009 |
20090015506 | PLANAR ANTENNA - A planar antenna ( | 01-15-2009 |
20090021446 | WIRELESS IC DEVICE AND ELECTRONIC DEVICE - A wireless IC device includes a wireless IC chip for processing a transmission/reception signal, a printed wiring circuit board on which the wireless IC chip is mounted, a ground electrode disposed on the circuit board, and a substantially loop-shaped electrode that is electrically conducted to the wireless IC chip and disposed on the circuit board so as to be coupled to the ground electrode by an electromagnetic field. The ground electrode is coupled to the wireless IC chip via the substantially loop-shaped electrode to transmit/receive a radio frequency signal. A feeder circuit board including a resonant circuit and/or a matching circuit may be interposed between the wireless IC chip and the substantially loop-shaped electrode. | 01-22-2009 |
20090051615 | MULTI-BAND ANTENNA APPARATUS DISPOSED ON A THREE-DIMENSIONAL SUBSTRATE, AND ASSOCIATED METHODOLOGY, FOR A RADIO DEVICE - Antenna apparatus, and an associated methodology, for a multi-frequency-band-capable radio device, such as a quad-band mobile station. The antenna apparatus is formed from a three-dimensional rectilinear non-conductive dielectric antenna substrate, such as cube. An elongated radiation element is disposed over multiple surfaces of the antenna substrate. A T-shaped impedance matching element located at the end of the radiation element permits the antenna input impedance to be matched to a communications device. The length of the radiation element is selected to be substantially equal to a quarter wavelength of the lowest frequency band at which the antenna operates. | 02-26-2009 |
20090073076 | ADAPTIVE ANTENNA MATCHING - The present invention relates to a portable communication device and a method of controlling the matching of an antenna in a portable communication device. The device may include an antenna; a radio circuit to send a radio frequency signal to the antenna via a signal path; a matching network including a number of network components and configured to be in the signal path; a detector configured to detect an electromagnetic field from the antenna; and a control unit configured to control matching of the antenna by influencing at least one of the first matching network or the antenna based on the detected electromagnetic field. | 03-19-2009 |
20090079656 | Antenna Design For FM Radio Receivers - An apparatus includes first and second speakers, and an antenna including a first pair of wires connected to the first speaker, a second pair of wires connected to the second speaker, and a conductive sleeve surrounding portions of the first and second pairs of wires, the sleeve forming a coaxial capacitor with the first and second pairs of wires. The apparatus can further include an inductor connected between the first and second pairs of wires and the sleeve, to form a resonant circuit with the coaxial capacitor. | 03-26-2009 |
20090102740 | POWER RECOVERY CIRCUIT BASED ON PARTIAL STANDING WAVES - A power recovery system includes a transmission line that is coupled to transfer an RF signal received via an antenna. The RF signal generates a partial standing wave in the transmission line and the transmission line has at least one standing wave anti-node. A power recovery circuit converts an anti-node signal from the at least one standing wave anti-node to a power signal. | 04-23-2009 |
20090121959 | Impedance Matching Circuit and antenna Assembly using the same - An impedance matching circuit converts between an input impedance of an antenna and a characteristic impedance of a transmission line, such as a coaxial cable. The impedance matching circuit includes a transformer and a lumped circuit. The transformer has a primary side and a secondary side. The secondary side is configured to electrically connect with the antenna. The lumped circuit is electrically connected with the primary side, for converting the input impedance of the primary side to the characteristic impedance. An antenna assembly using the above-mentioned impedance matching circuit is also provided. | 05-14-2009 |
20090121960 | DUAL-FREQUENCY MATCHING CIRCUIT - The connection topology of input terminals ( | 05-14-2009 |
20090121961 | DUAL-FREQUENCY MATCHING CIRCUIT - The connection topology of input terminals | 05-14-2009 |
20090121962 | DUAL-FREQUENCY MATCHING CIRCUIT - The connection topology of input terminals ( | 05-14-2009 |
20090128441 | DUAL-FREQUENCY MATCHING CIRCUIT - The connection topology of input terminals | 05-21-2009 |
20090128442 | ANTENNA APPARATUS - An aspect of an antenna apparatus according to the present invention is provided with a conductor plate, radiating elements disposed to face the conductor plate and partially short-circuited to the conductor plate, a feeding terminal provided on the conductor plate, and a feeding path connecting the feeding terminal and a feeding portion of the radiating elements to each other. | 05-21-2009 |
20090201215 | QUADRIFILAR HELICAL ANTENNA - A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element having a feed terminal at the center thereof from which current is supplied to the two filars of each filar pair disposed about an edge of the impedance matching element and symmetric with respect to a center of the impedance matching element. The impedance matching element further comprises a reactive element for matching the antenna and source impedances. | 08-13-2009 |
20090219220 | DUAL-BAND MULTI-PITCH PARASITIC HALF-WAVE (MPPH) ANTENNA - A dual band multi-pitch helical antenna ( | 09-03-2009 |
20090262041 | WIRELESS IC DEVICE - An electromagnetic coupling module includes a wireless IC chip and a functional substrate. The electromagnetic coupling module is mounted on a radiation plate, preferably using an adhesive, for example. On the upper surface of a base material of the radiation plate, two long radiation electrodes are provided. On the undersurface of the functional substrate, capacitive coupling electrodes that individually face inner ends of the radiation electrodes are provided. A matching circuit arranged to perform the impedance matching between the wireless IC chip and each of the radiation electrodes includes the capacitive coupling electrodes. As a result, it is possible to reduce the size, facilitate the design, and reduce the cost of a wireless IC device. | 10-22-2009 |
20090267859 | End-fed planar type spiral antenna - An end-fed planar type spiral antenna for transmitting/receiving radio signals includes a spiral pattern formed to have inner and outer spiral curves turned predetermined times in a spiral shape from an arbitrary center point in a plane; a central circle pattern formed in a part of a central region of the spiral pattern in a circular shape; and a feed arm pattern formed in a rectangular shape from an end of the spiral pattern that turns predetermined times. Conductive material is patterned on a pattern where the spiral pattern, the central circle pattern and the feed arm pattern are overlapped. This antenna allows to design an antenna structure capable of effectively enhancing radiation efficiency and improving broadband characteristics by utilizing a tapered spiral structure. Also, this antenna has an improved orientation, ensures less limitation in height, and allows a small-size design. | 10-29-2009 |
20090273536 | LOW-PROFILE WIDE-BANDWIDTH RADIO FREQUENCY ANTENNA - The present invention relates to an RF antenna structure that includes a planar structure and a loading plate, such that the planar structure is mounted between a ground plane and the loading plate to form an RF antenna. The loading plate may be about parallel to the ground plane and the planar structure may be about perpendicular to the loading plate and the ground plane. The loading plate may allow the height of the RF antenna structure above the ground plane to be relatively small. For example, the height may be significantly less than one-quarter of a wavelength of RF signals of interest. The planar structure may include two conductive matching elements to help increase the bandwidth of the RF antenna structure. | 11-05-2009 |
20090278760 | WIRELESS IC DEVICE - A wireless IC device includes a wireless IC chip; a feeder circuit board which has the wireless IC chip located thereon, is magnetically coupled to a radiation plate, supplies electric power to the wireless IC chip, and relays signals between the wireless IC chip and the radiation plate; and a substrate on which the feeder circuit board is placed. On the substrate, there are formed a plurality of positioning markers indicating the boundaries of a plurality of positioning areas in which the feeder circuit board is selectively placed. | 11-12-2009 |
20090289871 | Compact top-loaded, tunable fractal antenna systems for efficient ultrabroadband aircraft operation - Compact top-loaded, fractal monopole antenna system embodiments are provided for multi-band airborne operation over ultrabroadband ranges (e.g., 30 to 2000 MHz). These multi-band embodiments are self-contained, aerodynamic and compact (e.g., blade height less than 9.5 inches) and are power efficient with a low return loss (e.g., less than −7 dB). System embodiments include a set of impedance-matching circuits configured to substantially match an antenna impedance to a predetermined system impedance over a set of predetermined frequency bands. In an embodiment, at least one impedance-matching circuit includes a chain of selectable air-core inductors which are novelly arranged to improve radiation efficiency and prevent damage to support substrates. In an embodiment, a lowest-frequency one of the impedance-matching circuits is configured to process signals having a maximum wavelength λ | 11-26-2009 |
20090295671 | Method of Producing Communication Circuit, Communication Device, an Impedance- Matching Circuit, and an Impedance-Matching Circuit, and an Impedance-Matching Circuit Design Method - Communication circuit | 12-03-2009 |
20100019982 | COMMUNICATION APPARATUS - The communication apparatus includes a capacitive coupling electrode which is capacitively coupled with an adjacent conductor or an adjacent dielectric and which operates the conductor or the dielectric as an antenna element for electromagnetic waves of a predetermined frequency, and a matching circuit which is connected to the capacitive coupling electrode and which matches impedance of the conductor or the dielectric to be operated as the antenna element for the electromagnetic waves of the predetermined frequency when the conductor or the dielectric is adjacent and capacitively coupled therewith. | 01-28-2010 |
20100033397 | RECONFIGURABLE MULTI-BAND ANTENNA AND METHOD FOR OPERATION OF A RECONFIGURABLE MULTI-BAND ANTENNA - A multi-band antenna is provided. The antenna includes a radiating element resonant for at least two resonant frequencies, and at least two matching elements that are electrically connectable to the radiating element to substantially match an input impedance of the antenna to a reference impedance for each one of the at least two resonant frequencies. A method for transmitting and receiving on one or more frequency bands is also provided that includes selecting at least one resonant frequency, selectively electrically connecting a matching element corresponding to the at least one selected resonant frequency to a radiating element resonant at the one or more frequency bands, and receiving or transmitting a wireless signal at the at least one selected resonant frequency with the radiating element. | 02-11-2010 |
20100033398 | MODULAR ACTIVE ANTENNA FOR RECEIVING MULTIPLE BROADCASTING SIGNALS - The present invention relates to a modular active antenna for receiving multiple broadcast signals. The modular active antenna includes an internal antenna, an active module and a printed circuit board. The internal antenna is formed in a polyhedral shape having an open bottom surface and configured to receive multiple broadcast frequency signals. The active module is arranged below the internal antenna to constitute a single module together with the internal antenna and is configured to selectively perform impedance matching on any one of the multiple broadcast frequency signals received by the internal antenna. The printed circuit board is configured to allow the internal antenna and the active module to be mounted thereon and is provided with a ground surface formed on the bottom thereof. | 02-11-2010 |
20100045562 | Antenna and a Method of Manufacturing an Antenna - A dielectrically-loaded antenna has a cylindrical ceramic core, a three dimensional antenna element structure comprising co-extensive helical conductors plated on a cylindrical side surface of the core and a dielectrically-loaded antenna has a solid cylindrical core made of a ceramic material, helical antenna elements made of a ceramic material, co-extensive helical antenna elements plated on the core, connecting conductors on a distal end surface, a matching section in the form of a printed circuit board overlying the core distal end surface and a coaxial feeder housed in an axial bore passing through the core. For ease of manufacture, the laminate board of the matching section contains a ball grid array having a plurality of solder elements which serve to connect the matching network to both the surface connection elements on the distal core end surface and to the feeder. At a proximal end of the feeder there is a transversely extending flange for connecting the shield of the feeder to a plating on a proximal end surface of the core, the plating forming part of an integral balun. | 02-25-2010 |
20100073254 | Metamaterial Loaded Antenna Devices - Techniques and devices based on antenna structures with a MTM loading element. | 03-25-2010 |
20100156746 | Dual-band antenna - The dual-band antenna is provided. The dual-band antenna includes an impedance matching control element, a first connection part, a first radiation element, a second radiation element, and a ground element. The first radiation element operates in a first frequency band, is connected to the impedance matching control element, and extends along a first direction having an obtuse angle with respect to a longitudinal direction of the first connection part. The second radiation element operates in a second frequency band. The ground element is electrically connected to the impedance matching control element and the second radiation element. | 06-24-2010 |
20100156747 | MULTI-PORT ANTENNA - A multi-port antenna structure includes a plurality of electrically conductive elements arranged generally symmetrically about a central axis with a gap between adjacent electrically conductive elements. Each of the electrically conductive elements has opposite ends and a bent middle portion therebetween, with the bent middle portion being closer to the central axis than the opposite ends. Each of the electrically conductive elements is configured to have an electrical length selected to provide generally optimal operation within one or more selected frequency ranges. Each of a plurality of antenna ports is connected to adjacent electrically conductive elements across the gap therebetween such that each antenna port is generally electrically isolated from another antenna port at a given desired signal frequency range and the antenna structure generates diverse antenna patterns. | 06-24-2010 |
20100156748 | ANTENNA APPARATUS FOR INTERNAL IMPEDANCE MATCHING - An antenna apparatus allows for internal impedance matching by employing an internal matching device therein. The antenna apparatus includes a board body formed of a dielectric material and having a flat structure. The antenna apparatus also includes an antenna device disposed on an upper surface of the board body, and the internal matching device disposed on a lower surface of the board body. The antenna device extends from a feed point and has a first impedance. The internal matching device is connected to the antenna device and has a second impedance used for matching the first impedance with a reference impedance. The antenna device and the internal matching device resonate at the reference impedance in a specific frequency band when a voltage is supplied through the feed point. | 06-24-2010 |
20100194658 | ANTENNA DEVICE - An antenna element has an upstanding section erected from a base member; a tuning section extended from the upper end of the upstanding section into one direction in a parallel plane parallel to the base member, bent in the middle, and then extended in the direction opposite the one direction; and an open element section extended from the front end of the tuning section in the direction in which the open element section spirally turns in the parallel plane about the upstanding section. | 08-05-2010 |
20100220030 | ANTENNA DEVICE - An antenna device is provided with an antenna element including a base, an inductance adjustment pattern that is formed on the upper surface and a side surface of the base and has a substantially U-shape, a capacitance adjustment pattern that is formed on the upper surface of the base and is placed to face the inductance adjustment pattern, and first to third terminal electrodes provided on the bottom surface of the base. The antenna element is installed between the first side and the second side of the ground pattern that form the two facing sides of the antenna mounting region. One end of the inductance adjustment pattern is connected to the feed line, the other end of the inductance adjustment pattern is connected to the first side of the ground pattern, and the third terminal electrode is connected to the second side of the ground pattern. | 09-02-2010 |
20100220031 | WIDEBAND DIELECTRIC ANTENNA - An antenna for radiating an electromagnetic field having both linear and circular polarization includes a ground plane and a dielectric layer. The dielectric layer is disposed on the ground plane and has at least one exposed surface that radiates the electromagnetic field. A first feeding element is disposed on the exposed surface for electrically exciting the dielectric layer to provide the linear polarization at a first frequency having a first effective wavelength. A second feeding element is disposed on the exposed surface for electrically exciting the dielectric layer to provide the circular polarization at a second frequency having a second effective wavelength. The feeding elements are separated by a distance greater than ⅛ wavelength of the largest of the effective wavelengths. | 09-02-2010 |
20100225556 | METHOD AND SYSTEM FOR POWER COMBINING IN A MULTI-PORT DISTRIBUTED ANTENNA - Methods and systems for power combining in a multi-port distributed antenna are disclosed and may include power combining signals from power amplifiers (PAs) on a chip. The PAs may be coupled to a single distributed antenna via antenna ports. A phase of each of the signals may be matched at the antenna ports via phase-matching circuitry. A characteristic impedance may be configured at the ports based on a location of the ports. The PAs may be impedance matched to the antenna ports via impedance matching elements. A power level of the power-combined signals may be monitored via a power detector coupled to the distributed antenna. The power detector may include an envelope detector, such as a diode. The antenna may be integrated on the chip or may be located external to the chip. The signals may include RF signals and the antenna may include a microstrip antenna. | 09-09-2010 |
20100225557 | METHOD AND SYSTEM FOR AN ON-CHIP AND/OR AN ON-PACKAGE TRANSMIT/RECEIVE SWITCH AND ANTENNA - Methods and systems for an on-chip and/or on-package T/R switch and antenna are disclosed and may include selectively coupling one or more low noise amplifiers (LNAs) and/or one or more power amplifiers (PAs) to one or more ports of a multi-port distributed antenna utilizing configurable transmit/receive (T/R) switches integrated on a chip with the LNAs and PAs. The LNAs and PAs may be impedance matched to the antenna by coupling them to a port based on a characteristic impedance at the port. The T/R switches may be integrated on a package to which the chip may be coupled. The signals transmitted and received by the antenna may be time division duplexed. The antenna, which may include a microstrip antenna, may be integrated on the chip or the package. The LNA and the PA may be coupled to different ports on the antenna via the T/R switches. | 09-09-2010 |
20100225558 | ANTENNA ARRANGEMENT - Antenna arrangement for a multi-radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines ( | 09-09-2010 |
20100225559 | RF RECEPTION SYSTEM AND INTEGRATED CIRCUIT WITH PROGRAMMABLE IMPEDANCE MATCHING NETWORK AND METHODS FOR USE THEREWITH - An integrated circuit includes an on-chip antenna interface, coupled to an off-chip antenna interface having at least one off-chip impedance matching component, that forms a programmable impedance matching network with the at least one off-chip impedance matching component. The programmable impedance matching network is programmable based on a control signal. An RF receiver, coupled to the programmable impedance matching network, that generates inbound data in response to a received signal from the programmable impedance matching network. | 09-09-2010 |
20100245203 | MULTIBAND ANTENNA - A multiband antenna includes a radio unit and a base circuit board. The radio unit includes a first radio member and a second radio member connected to the first radio member. The first radio member and the second radio member have similar shapes and sizes to each other and are aligned with each other. The base circuit board is connected to the second radio member to provide feed signals to the radio unit and connect the radio unit to the ground. The first radio member independently sends/receives wireless signals at a first frequency, and the second radio member is coupled with the first radio member, thereby cooperating with the first radio member to send/receive wireless signals at a second working frequency. | 09-30-2010 |
20100245204 | CIRCULARLY POLARIZED ANTENNA FOR SATELLITE COMMUNICATION - A circularly polarized antenna includes a dielectric substrate having a first via array in the form of a cylindrical cavity, a micro-strip circular patch antenna located at the center of the cylindrical cavity and formed on the dielectric substrate to radiate a signal, and a rectangular dielectrically loaded waveguide having a second via array and serving to feed the signal to the micro-strip circular patch antenna. Accordingly, the circularly polarized antenna prevents impedance mismatch between the micro-strip antenna and the dielectrically loaded waveguide and broadens an impedance bandwidth thereof. | 09-30-2010 |
20100265153 | KU-BAND COAXIAL TO MICROSTRIP MIXED DIELECTRIC PCB INTERFACE WITH SURFACE MOUNT DIPLEXER - A coaxial to microstrip transition is introduced in a multi layer mixed dielectric printed circuit board environment that provides a 50 Ohm impedance system between a coaxial antenna feed and a surface mount diplexer at Ku-band frequencies. The 50 Ohm transition from the coaxial antenna feed to the diplexer at microwave frequencies lossy FR-4 style laminate is provided by constructing a PCB internal coax using the center conductor of the antenna feed and a dual ring of plated through hole VIAs. The transition from the PCB internal coax to the microstrip section of the high frequency laminate PCB layer uses a “D”-style opening in the ground layer and a VIA ring arrangement between the layers to optimize or tune the performance of the transition. Additional features in the interface construction are implemented to guaranty that its microwave and mechanical performance does not degrade in extreme environmental conditions. | 10-21-2010 |
20100321272 | ANTENNA DEVICE - An antenna device is provided with a base material having a power feed section to which a power feed line is connected; an antenna element connected to the power feed section; and a matching circuit section, which is connected to the power feed section and the antenna element and matches the reactance of the antenna element and that of the power feed line with each other. The antenna element is provided with an impedance control section, which is annularly formed and has passive components connected thereto, on an opened leading end section. | 12-23-2010 |
20100321273 | WIDEBAND ANTENNA AND CLOTHING AND ARTICLES USING THE SAME - Provided are a first planar radiating element and second planar radiating element that have at least one side. At least the first or second radiating element has a strip-shaped element. A first side of the first radiating element and a second side of the second radiating element are so disposed as to be parallel to each other, face each other and be shifted slightly in a parallel direction. The strip-shaped element is so disposed as to be connected to any side other than the first and second sides of the first and second radiating elements, run parallel to the first and second sides, and not go beyond tips positioned at the outermost points of the first and second sides. | 12-23-2010 |
20100328185 | RADIO-FREQUENCY SYSTEM IN PACKAGE INCLUDING ANTENNA - A system comprising at least one antenna and a circuit, wherein the circuit is at least in part not a semiconductor chip or a die. The at least one antenna and the circuit are arranged on a package. Alternatively described is a system comprising at least one antenna and at least one circuit, wherein the at least one antenna and the at least one circuit are arranged on a package, wherein the at least one circuit performs a radio-frequency and optionally a base-band and/or a digital functionality. | 12-30-2010 |
20110001681 | MULTIBAND ANTENNA - A multiband antenna includes a feed portion, a radiating portion and a matching portion. The radiating portion is operable to transceive electromagnetic signals, and includes a first radiator, a second radiator and a third radiator. The first radiator is connected to the feed portion, and includes a first free end and a second free end. The second radiator is bent, and includes a first feed end and a third free end, wherein the first feed end is connected to the feed portion. The third radiator is substantially L shaped, and includes a second feed end and a fourth free end, wherein the second feed end is electrically connected to the feed portion. The matching portion is rectangularly shaped, and electrically connected to the first radiator, for impedance matching. | 01-06-2011 |
20110025578 | MULTI-DIRECTIONAL PANEL ANTENNA - A multi-directional panel antenna is provided for the reception of TV broadcast VHF and UHF signals. The panel antenna's circuit board has its current path substantially covers the surface of the circuit board so as to produce multi-directional reception patterns. An iron-core winding is configured at a feed-in terminal of the panel antenna for impedance matching and signal concentration. The panel antenna also uses air to reduce dielectric loss. A MMIC signal amplification device is provided for enhanced gain. Ceramic capacitors are provided to increase the reception wavelength of the panel antenna so that it falls within a lower section of the VHF band. | 02-03-2011 |
20110025579 | SEMICONDUCTOR DEVICE, AND RADIO FREQUENCY SWITCH AND RADIO FREQUENCY MODULE USING THE SEMICONDUCTOR DEVICE - A semiconductor device which detects a power level of a radio-frequency signal includes: a switch FET including: a semiconductor layer; a source electrode and a drain electrode; a first gate electrode; a second gate electrode formed between the first gate electrode and the drain electrode and on the semiconductor layer, each of the first gate electrode and the second gate electrode being in Schottky contact with the semiconductor layer, and the source electrode receiving the radio-frequency signal; a resistor having one end electrically connected to the first gate electrode and an other end electrically connected to the drain electrode via a capacitor; and a power detection terminal electrically connected to a connecting point between the resistor and the capacitor. | 02-03-2011 |
20110032170 | MULTI-BAND ANTENNA FOR NOTEBOOK COMPUTER - A multi-band antenna includes an insulative carrier board arranged on the top side of the display screen of a notebook computer, a main antenna which has the top metal strip thereof disposed at the top edge of the insulative carrier board and the grounding metal strip thereon arranged on the insulative carrier board, an inverted L antenna arranged on the insulative carrier board, a first capacitor, a second capacitor, an antenna feed-in terminal and/or an inductor set between the inverted L antenna and the main antenna to achieve optimal matching subject to adjustment of the capacitance values of the first and second capacitors and the inductance value and position of the inductor. | 02-10-2011 |
20110037678 | MULTIFUNCTIONAL ANTENNA CHIP - A multifunctional antenna chip is able to mate with many kinds of matched circuits and is able to adjust the character of an antenna structure of the multifunctional antenna chip, in order that the antenna structure has one or multiple standard working frequencies. The antenna structure is a folded antenna structure basically; this can save its volume occupied. And the multifunctional antenna chip has a non-signal inputting pin for connection to thereby increase shape of the antenna for adjusting the style of the antenna structure designed. | 02-17-2011 |
20110043429 | TRANSCEIVING CIRCUIT FOR CONTACTLESS COMMUNICATION AND NFC DEVICE OR RFID READER/WRITER DEVICE COMPRISING SUCH A TRANSCEIVING CIRCUIT - A transceiving circuit ( | 02-24-2011 |
20110095958 | Antenna Array Method for Enhancing Signal Transmission - In an antenna array, a metal layer is used for covering a block mapped by micro-strips, which are disposed on an obverse side of a base plate, on a reverse side of the base plate, so as to concentrating energy of radio signals emitted from radiator sets on a predetermined direction. The base plate and elements loaded by the base plate are fabricated according to designed specifications, so as to enhance the concentration of energy of the radio signals on the predetermined direction. | 04-28-2011 |
20110122042 | Antenna with Multi-Bands - An antenna connected to an interface connection port is provided. The antenna comprises a ground surface having a plurality of bands thereon; a first radiation element disposed on the ground surface and including a first bending section and a second bending section, wherein the ground surface is extended from the first bending section; and a second radiation element having a shape of a strip, extended from the second bending section, including a first end and a second end, and having a first flange at the first end and a second flange at the second end. | 05-26-2011 |
20110122043 | WIDEBAND ANTENNA FOR PRINTED CIRCUIT BOARDS - A planar antenna, such as included as a portion of a wireless communication assembly, can include a dielectric portion, a first conductive portion, extending along a surface of the dielectric portion, and a second conductive portion, parallel to the first conductive portion, extending along the surface of the dielectric portion, the second conductive portion laterally offset from the first portion to provide a specified lateral separation between the first and second conductive portions. The first and second conductive portions can be configured to provide respective resonant operating frequencies ranges offset from each other, and the first and second conductive portions can be configured to follow a commonly-shared path, including at least one bend, along the surface of the dielectric portion. | 05-26-2011 |
20110128206 | Multi-Antenna Apparatus and Mobile Device - This multi-antenna apparatus includes a first looped antenna element wound from a first end of the first looped antenna element on a side of a first feeding point in a prescribed direction, a second looped antenna element wound from a first end of the second looped antenna element on a side of a second feeding point in a direction opposite to the prescribed direction, a connecting portion connecting a second end of the first looped antenna element and a second end of the second looped antenna element with each other, and an impedance element arranged between the connecting portion and a ground potential. | 06-02-2011 |
20110134011 | ANTENNA APPARATUS AND WIRELESS COMMUNICATION APPARATUS - An antenna apparatus includes an antenna linear element including a linear conductor provided with a first end and a second end, a ground conductor connected to the linear conductor at the second end, a transmission line connected to the linear conductor at the first end, and a matching circuit including a first impedance adjustment element connected to the transmission line at an end on an opposite side to the end of transmission line connected to the linear conductor and a second impedance adjustment element which is connected to the first impedance adjustment element on an opposite side to the end of the first impedance adjustment element connected to the transmission line and an end of which on an opposite side to the end connected to the first impedance adjustment element is grounded, a connection part between the first impedance adjustment element and second impedance adjustment element receiving a power feed. | 06-09-2011 |
20110199280 | DIELECTRIC ANTENNA COMPONENT, ANTENNA, AND METHODS - A dielectric antenna component ( | 08-18-2011 |
20110221652 | ANTENNA SYSTEM INCLUDING A CIRCULARLY POLARIZED ANTENNA - An antenna system includes a circularly polarized (CP) antenna for receiving and/or transmitting a circularly polarized RF signal. The CP antenna includes a pair of radiating patches each having an elongated shape. An elongated axis is defined along a longest length of each of the radiating patches. The elongated axes are disposed generally perpendicular to one another to generate the circular polarization. A coplanar waveguide feeding element is disposed between the radiating patches for feeding RF signals from and/or to the radiating patches via electromagnetic coupling. A width of the slot of the coplanar waveguide is varied to provide impedance matching of the CP antenna with a transmission line. | 09-15-2011 |
20110254751 | Control Logic For Adaptive Antenna - A method includes, during transmission and/or reception of a radio frequency signal, detecting an impedance associated with an antenna connected with a matching network; algorithmically determining a reactance value of at least one reactive element that forms a part of the matching network in accordance with the detected impedance and at least one parameter including at least one of a currently used radio frequency, at least one user/device factor, at least one radio frequency offset value, and at least one predetermined constant; and setting the value of the at least one reactive element to match the determined value. | 10-20-2011 |
20110254752 | RADIO FREQUENCY IC DEVICE - A radio frequency IC device includes a radio frequency IC chip, a feeder circuit substrate, and a radiating plate. The feeder circuit substrate includes a feeder circuit that electrically connects to the radio IC chip and that includes a resonance circuit and/or a matching circuit including inductance elements. The feeder circuit substrate is bonded to the radiating plate, which radiates a transmission signal supplied from the feeder circuit and supplies a received signal to the feeder circuit. The inductance elements are arranged in spiral patterns wound in opposite directions and couple to each other in opposite phases. The radio frequency IC device is able to obtain a radio frequency IC device that is not susceptible to being affected by a usage environment, minimizes variations in radiation characteristics, and can be used in a wide frequency band. | 10-20-2011 |
20110260943 | INTEGRATION OF MICROSTRIP ANTENNA WITH CMOS TRANSCEIVER - A monolithic antenna element comprises a microstrip patch antenna and a ground plane, with a substrate between the patch antenna and the ground plane. A feeding via extends from the ground plane layer through the substrate to the patch antenna, connecting to the antenna distal from lateral edges of the antenna. A coplanar waveguide (CPW) feed line is formed in the ground plane layer, and interrupts and is electrically distinct from the ground plane. The CPW extends from a lateral edge of the ground layer to the feeding via. The antenna can be flip chip bonded to a CMOS die, reducing cost of millimetre wave transceivers, e.g. 57-64 GHz. The antenna is fabricated using standard PCB technology and a single substrate for the antenna. Antenna arrays can be fabricated. Appropriately designed antenna feeds, flip chip interconnects and antenna shape provide suitably broad antenna bandwidth, with relatively high efficiency. | 10-27-2011 |
20110267253 | WIDEBAND AND MULTIBAND EXTERNAL ANTENNA FOR PORTABLE TRANSMITTERS - A communication device is presented that has an antenna structure with a relatively short length and covers multiple resonances including the UHF and the GPS bands. The antenna structure has a conductive base to which a whip antenna is connected through a helical radiating element. A cylindrical sheath capacitively connected to the helical element provides distributed impedance matching for the antenna structure. A monopole or another helical element provides higher resonance than that of the whip antenna or connected helical element. If the higher resonance is provided by a monopole, the monopole is disposed radially adjacent to the helical element and is capacitively connected with the helical element through an opening in the sheath. If the higher resonance is provided by a helical element, the helical element is capacitively or galvanically connected to the end of the whip antenna. | 11-03-2011 |
20110273355 | SYSTEMS AND METHODS FOR COMPLEMENTARY METAL-OXIDE-SEMICONDUCTOR (CMOS) DIFFERENTIAL ANTENNA SWITCHES USING MULTI-SECTION IMPEDANCE TRANSFORMATIONS - Example embodiments of the invention are directed to CMOS differential antenna switches with multi-section impedance transformation. The differential architecture can provide relief from large voltage swings of the power amplifiers by distributing the voltage stress over the receiver switch with two of the identical or substantially similar single-ended switches. In order to reduce the voltage stress further, multi-section impedance transformations can be used. Degraded insertion loss due to the impedance transformation technique can be compensated by selecting an optimal impedance for the antenna switch operation. Accordingly, the use of the multi-section impedance transformations with the differential antenna switch architecture enables high power handling capability for the antenna switch with acceptable efficiency for the transmitter module. | 11-10-2011 |
20110285603 | ANTENNA INTERFACE CIRCUITS INCLUDING TUNABLE IMPEDANCE MATCHING NETWORKS, ELECTRONIC DEVICES INCORPORATING THE SAME, AND METHODS OF TUNING ANTENNA INTERFACE CIRCUITS - An antenna interface circuit for a wireless communication device includes a tunable matching circuit that is coupleable to an antenna. The tunable matching circuit includes a variable impedance element having a variable impedance Ztune. The interface circuit further includes a fixed impedance element having a fixed impedance Zmeas, and a switch coupled to the fixed impedance element and configured to controllably switch the fixed impedance element into electrical communication with the tunable matching circuit. Related devices and methods are also disclosed. | 11-24-2011 |
20110309993 | SMALL-SIZE PRINTED CIRCUIT BOARD-PRINTED MEANDER LINE INVERTED-F ANTENNA FOR RADIO FREQUENCY INTEGRATED CIRCUITS - A printed circuit board-printed antenna for a radio frequency front end with an antenna port for a predefined operating frequency band is disclosed. A ground line and a feed line are connected to a radiating element fixed to a bare section of a printed circuit board substrate. The radiating element is in an inverted-F configuration with a primary segment extending in a perpendicular relationship to the connected ground line and the feed line. A plurality of successive meander segments is initially connected to the primary segment and ends at a radiating element tip. A high frequency current loop is formed with an origin from the feed line to a terminus via the ground line and the radiating element tip. The high frequency current loop confines current and electronic fields on the radiating element. | 12-22-2011 |
20110309994 | ANTENNA DEVICE AND COMMUNICATION TERMINAL APPARATUS - An antenna device includes an antenna element and an impedance converting circuit connected to the antenna element. The impedance converting circuit is connected to a power-supply end of the antenna element. The impedance converting circuit is interposed between the antenna element and a power-supply circuit. The impedance converting circuit includes a first inductance element connected to the power-supply circuit and a second inductance element coupled to the first inductance element. A first end and a second end of the first inductance element are connected to the power-supply circuit and the antenna, respectively. A first end and a second end of the second inductance element are connected to the antenna element and ground, respectively. | 12-22-2011 |
20120013521 | DUAL BAND ANTENNA DESIGN - Disclosed in an example embodiment herein is a dual mode patch antenna designed to operate in the TMO2 mode. The antenna comprising a circular patch antenna configured to operate at a first frequency, and a cylindrical matching element coupled to the circular patch antenna configured to operate at a second frequency. A feed surface is coupled to the cylindrical matching element. | 01-19-2012 |
20120019428 | ANTENNA USING COMPOSITE RIGHT/LEFT-HANDED TRANSMISSION LINE AND METHOD FOR MANUFACTURING THE SAME - An antenna includes: a radiation patch; a feed line having a first stage through which power is fed to the radiation patch, and a second stage connected to a feed terminal; a transformer disposed between the radiation patch and the first stage of the feed line and configured to match an impedance of the radiation patch with an impedance of the feed line; and a filter connected in series between the first stage and the second stage of the feed line and configured to filter resonances generated at frequency bands corresponding to integer multiples of a frequency applied to the radiation patch. | 01-26-2012 |
20120026062 | Flat folding hinged antenna - A multi-band antenna including a first antenna portion extending generally in a first plane, a second antenna portion, extending generally in a second plane and a hinged coupling providing coupling between the first antenna portion and the second antenna portion and permitting the second antenna portion to be folded over the first antenna portion such that the first plane and the second plane lie generally parallel. | 02-02-2012 |
20120026063 | APPARATUS AND METHOD FOR MATCHING IMPEDANCE USING STANDING WAVE RATIO INFORMATION - An apparatus and method for matching impedance of an antenna by using Standing Wave Ratio (SWR) information is provided. While the impedance of the impedance matching unit is controlled, a region of a Smith chart in which initial total impedance of the impedance matching unit and the antenna is located by using an SWR calculated by an SWR operation unit, and the impedance of the impedance matching unit is controlled according to the determined region, thus correctly matching the impedance of the antenna. | 02-02-2012 |
20120026064 | WIDEBAND ANTENNA USING COUPLING MATCHING - A wide-band antenna using coupling matching is disclosed. The antenna may include a first conductive element, which is electrically connected with a ground; a second conductive element, which is electrically connected with a power feed point and formed parallel to the first conductive element with a particular distance in-between; and a third conductive element for emitting an RF signal that extends from the first conductive element, where the first conductive element and the second conductive element have a particular length such that progressive waves are generated and sufficient coupling is achieved. According to certain aspects of the present invention, a internal type multi-band antenna having wide-band characteristics can be provided, by using coupling matching for multi-band design. | 02-02-2012 |
20120032870 | BROADBAND ANTENNA USING COUPLING MATCHING WITH SHORT-CIRCUITED END OF RADIATOR - An antenna, where an end point of a radiator is shorted, using coupling matching is disclosed. The antenna includes a first conductive element connected electrically to a first ground, a second conductive element connected electrically to a feeding part, and spaced from the first conductive element by a certain distance, a third conductive element extending from the first conductive element and configured to output a RF signal, an end point of the third conductive element being coupled to a second ground. Here, the first conductive element and the second conductive element have a certain length so that a travelling wave is generated and enough coupling is provided. The antenna provides wide band characteristics while maintaining a low profile structure. The frequency characteristics of the antenna are not changed significantly due to external factors such as hand effect and head effect. | 02-09-2012 |
20120038537 | ANTENNA AND WIRELESS COMMUNICATION DEVICE - Provided is an antenna including a planar conductor to be grounded, and a three-dimensional linear conductor having at least a linear conductor, another linear conductor, and still another linear conductor that are integrally formed. The linear conductor is provided perpendicularly to the major surface of the planar conductor. The another linear conductor is parallel to the major surface. Still another linear conductor is parallel to the major surface, and is provided perpendicularly to the another linear conductor. | 02-16-2012 |
20120044121 | DISTRIBUTED COUPLING ANTENNA - An antenna including a ground plane region, a feed element having associated with it a first reactance and a coupling element having associated with it a second reactance, the second reactance being of opposite sign to the first reactance, the coupling element being coupled to the feed element and to the ground plane region and being located in close proximity to the ground plane region, wherein an impedance and hence a resonant frequency of the antenna depend on the first and second reactances. | 02-23-2012 |
20120075159 | ANTENNA MATCHING CIRCUIT CONTROL DEVICE - The antenna matching circuit control device with an antenna body includes a sensing module, a processing module, a power adjusting module and a frequency adjusting module. The sensing module senses an object that approaches the antenna body and outputs a sensing signal accordingly. The processing module is coupled to the sensing module and outputs a first control signal and a second control signal according to the sensing signal. The power adjusting module is coupled to the processing module and controls a power amplifier to couple with one of a plurality of first matching circuits according to the first control signal. The frequency adjusting module is coupled to the antenna body and the power adjusting module. The frequency adjusting module controls one of a plurality of second matching circuits to couple with one of the first matching circuits according to the second control signal. | 03-29-2012 |
20120119971 | Apparatus For Controlling Impedance in Adaptive Tuning Antenna Circuit - An apparatus for controlling impedance in an adaptive tuning antenna circuit is disclosed, wherein a matching unit is connected to an output terminal where a coupler outputs a coupled power of a transmission signal, a controller adjusts an impedance of the matching unit to cause the reflected power outputted by the coupler to be minimized, and the controller adjusts an impedance of a tuner to allow a combined impedance of the tuner and an antenna to be equal to the impedance of the matching unit but with opposite phases, thereby adjusting the impedance of the antenna in the optimal state. | 05-17-2012 |
20120133571 | ANTENNAS WITH MULTIPLE FEED CIRCUITS - There is disclosed an antenna arrangement comprising an electrically conductive radiating element having first and second ends, an electrically conductive ground plane or ground member, and an input terminal. The radiating element has a plurality of separate feed points at different locations between its first and second ends, and the input terminal is provided with a switch. Each feed point is electrically connected to the switch by way of a separate electrical pathway, the switch being configured to allow the separate feed points to be connected individually or in predetermined combinations to the input terminal by selecting between a plurality of selectable contacts. At least one of the electrical pathways includes a capacitive circuit component connected in series, and at least one other of the electrical pathways includes an inductive circuit component connected in series. The antenna arrangement allows for a high degree of customization and improved matching, and enables good multi-band performance. | 05-31-2012 |
20120139814 | FREQUENCY STABILIZATION CIRCUIT, ANTENNA DEVICE, AND COMMUNICATION TERMINAL DEVICE - A frequency stabilization circuit includes four coiled conductors, the first coiled conductor and the second coiled conductor are connected in series to each other to define a first series circuit, the third coiled conductor and the fourth coiled conductor are connected in series to each other to define a second series circuit, the first series circuit is connected between an antenna port and a power feeding port, and the second series circuit is connected between the antenna port and the ground. The first coiled conductor and the second coiled conductor are wound so that a first closed magnetic circuit is provided, and the third coiled conductor and the fourth coiled conductor are wound so that a second closed magnetic circuit is provided. | 06-07-2012 |
20120154243 | WIDEBAND SINGLE RESONANCE ANTENNA - Wideband single resonance antenna. An antenna may include a first conductor unit and a second conductor unit. The first conductor unit may be configured to have one end electrically coupled to a power. The second conductor unit may be configured to have one end electrically coupled to a ground, to surround at least one side of the first conductor unit, and to be electrically separated from the first conductor unit. | 06-21-2012 |
20120154244 | MULTILEVEL ANTENNAE - An apparatus including a wireless communications device has an internal antenna system located within the wireless communications device. The internal antenna system includes a passive antenna set comprising at least one antenna element having at least one multilevel structure, a feeding point to the at least one antenna element and a ground plane. The feeding point and a point on the ground plane define an input/output port for said passive antenna set. The passive antenna set provides a similar impedance level and radiation pattern at two or more frequency bands such that the passive antenna set is capable of both transmitting and receiving wireless signals on selected channels. The selected channels are selectable from a plurality of channels throughout an entire frequency range within each of said two or more frequency bands. | 06-21-2012 |
20120169565 | Tunable radio front end and methods - Tunable radio front end systems and methods are disclosed in which the tunable radio front end includes a first tunable impedance matching network, a second tunable impedance matching network, a transmission signal path, and a reception signal path. The transmission signal path can include a first tunable filter in communication with the first tunable impedance matching network, a tunable power amplifier connected to the first tunable filter, and a radio transmitter connected to the tunable power amplifier. The reception signal path can include a second tunable filter in communication with the second tunable impedance matching network, a tunable low-noise amplifier connected to the second tunable filter, and a radio receiver connected to the tunable low-noise amplifier. | 07-05-2012 |
20120169566 | IMPEDANCE MATCHING METHOD FOR A MULTIBAND ANTENNA, AND TRANSMISSION OR RECEIVER CHANNEL HAVING AUTOMATIC MATCHING - An automatic antenna impedance matching method for a radiofrequency transmission circuit. An impedance matching network is inserted between an amplifier and an antenna. The output current and voltage of the amplifier and their phase difference are measured by a variable measurement impedance, and the complex load impedance of the amplifier is deduced from this; the impedance of the antenna is calculated as a function of this complex impedance and as a function of the known current values of the impedances of the matching network. Starting from the value found for the impedance of the antenna, new values of the matching network are calculated that allow the load to be matched to the nominal impedance of the amplifier. The measurement impedance has a value controllable by the calculation processor according to the application and notably as a function of the operating frequency and of the nominal impedance of the amplifier. | 07-05-2012 |
20120188141 | MILTIRESONANCE ANTENNA AND METHODS - A multiresonance antenna useful in small-sized radio devices. In one embodiment, radiating element of the antenna comprises, a first and a second radiating arm of nearly equal electric lengths. The tail portions of the arms are located on different sides of the area determined by the outline of the radiator and point to opposite directions away from each other thereby exciting a double resonance in the antenna. The second arm comprises at least one branch extending towards the tail portion of the first arm thereby widening antenna operating band in the frequency range of 900 MHz. | 07-26-2012 |
20120188142 | PRINTED QUASI-TAPERED TAPE HELICAL ARRAY ANTENNA - A printed quasi-tapered tape helical element and printed helical array antenna arc disclosed. The helical element comprises a thin helix conductor having a uniform section associated with a tapered section. The helix conductor can be printed on a thin dielectric sheet and bonded to a hollow composite dielectric support. A solid copper conductor is configured to provide electrical connection between a feeding point of the helix conductor and a microstrip line of a microstrip feed network. The uniform and tapered helix turns are respectively wrapped around the uniform and tapered sections, which enables impedance matching, axial mode excitation, gain and radiation patterns, and damping out of standing waves generated in current distribution over the helix conductor. Conductive composite cups surrounding each helical element reduces mutual coupling in array environment. Thus, the helical element and the array antenna achieve low on-axis and off-axis axial ratio performance over the wideband for global coverage. | 07-26-2012 |
20120212390 | METHOD FOR IMPLEMENTING WIRELESS EQUIPMENT ANTENNA AND WIRELESS EQUIPMENT - A method for implementing a wireless equipment antenna and wireless equipment are provided. The method includes: dividing the wireless equipment into a first part and a second part, and electrically connecting the two parts only through a radio frequency signal feed line and a frequency selection network component; the first part at least includes a radio frequency chip, the second part includes a connection component for connecting network equipment, and the part which is on the wireless equipment and shares the metal ground with the network equipment after connecting the network equipment except the radio frequency signal feed line and the frequency selection network component; applying the frequency selection network component to correspondingly connect the power line and data line respectively on the second part and the first part; using the second part as the antenna of the wireless equipment. | 08-23-2012 |
20120229360 | INDIRECT FED ANTENNA - An indirect-fed antenna system is disclosed. In an embodiment, a coupler is electrically coupled to a feed. The coupler capacitively couples to a resonating element and the resonating element is electrically coupled to a ground plane. The system allows for improved band-width and also allows for an antenna design where the resonant frequency, the bandwidth of the antenna, the location of the curl on a Smith chart and the associated impendence matching network can be separately adjusted. | 09-13-2012 |
20120235878 | RADIO DEVICE - There is provided a radio device including an antenna, a first impedance converting circuit, a second impedance converting circuit and a differential output unit. The antenna has a first terminal and a second terminal to receive a signal. The first impedance converting circuit and the second impedance converting circuit have a first impedance and a second impedance, respectively. The first impedance and the second impedance each are controllable. One end of the first impedance converting circuit and one end of the second impedance converting circuit are connected to the first terminal and the second terminal of the antenna, respectively. The differential output unit is connected to the other end of the first impedance converting circuit and the other end of the second impedance converting circuit through which the signal received by the antenna is input to the differential output unit, and transform the signal into a differential signal. | 09-20-2012 |
20120249395 | Ultra Thin Antenna - An ultra thin antenna ( | 10-04-2012 |
20120256807 | METHOD FOR REALIZING TERMINAL ANTENNA, TERMINAL ANTENNA AND TERMINAL THEREOF - Provided is a method for implementing a terminal antenna, including: welding a metal shell for fixing a side key on a ground of a printed circuit board; dividing the ground of the printed circuit board into a first ground and a second ground, connecting the first ground with the second ground by at least one first isolating unit, the first ground being welded with the metal shell, and a length of the first ground being ¼ of a wavelength of a radio operating frequency band, and connecting the first ground with an antenna receiving/transmitting unit, thereby implementing a terminal antenna by taking the first ground as a radiator. The present invention also provides a corresponding terminal antenna and a terminal thereof. | 10-11-2012 |
20120274537 | LOW-PROFILE WIDE-BANDWIDTH RADIO FREQUENCY ANTENNA - The present invention relates to an RF antenna structure that includes a planar structure and a loading plate, such that the planar structure is mounted between a ground plane and the loading plate to form an RF antenna. The loading plate may be about parallel to the ground plane and the planar structure may be about perpendicular to the loading plate and the ground plane. The loading plate may allow the height of the RF antenna structure above the ground plane to be relatively small. For example, the height may be significantly less than one-quarter of a wavelength of RF signals of interest. The planar structure may include two conductive matching elements to help increase the bandwidth of the RF antenna structure. | 11-01-2012 |
20120280885 | ANTENNA APPARATUS AND COMMUNICATION APPARATUS - The present invention relates to an antenna apparatus and a communication apparatus able to provide an antenna apparatus having wide band characteristics or diversity characteristics. | 11-08-2012 |
20120293392 | ANTENNA-IN-PACKAGE STRUCTURE - An electronic device with an antenna of the antenna-in-package type (AIP) includes an upper surface on which a radiating element is provided. The radiating element has an open end and a feeding end. The antenna also includes an adaptation element. The antenna is characterized in that the adaptation element is provided at an area that is different from the upper surface of the antenna holding the radiating element. The adaptation element is connected, at one end, to an intermediate point of the radiating element and grounded at another end. The device allows a further size reduction of standard inverted F antennas (IFA). | 11-22-2012 |
20120326940 | MULTI-BAND ANTENNA AND ELECTRONIC APPARATUS HAVING THE SAME - A multi-band antenna includes an antenna substrate, an antenna ground, an antenna unit, and a matching conductor. The antenna ground has a signal ground terminal and at least one bend. The antenna unit is adjacent to the antenna ground. The matching conductor is electrically coupled to the antenna ground, and an angle exists between the matching conductor and the antenna ground. A length of the first matching conductor is about a quarter of the wavelength corresponding to a frequency of the first operating band. The antenna unit includes a coupling conductor, a feeding conductor, a radiating conductor, and a shorting conductor. The feeding conductor has a signal feeding terminal One end of the radiating conductor is facing to the antenna ground, and a distance exists between the feeding conductor the antenna ground. Two ends of the shorting conductor are respectively electrically coupled to the antenna ground and the coupling conductor. | 12-27-2012 |
20130002509 | Impedance matching component, metamaterial panel, converging component and antenna - An impedance matching component is disclosed. The impedance matching component is disposed on and closely attached to a first side surface of a function dielectric sheet. The impedance matching component comprises a first plurality of impedance matching layers, each of which has a refractive index distribution represented as follows: | 01-03-2013 |
20130002510 | ANTENNAS WITH NOVEL CURRENT DISTRIBUTION AND RADIATION PATTERNS, FOR ENHANCED ANTENNA ISLATION - An antenna including a ground plane, at least one first conductive element located in proximity to an edge of the ground plane and having first and second ends, the first end extending generally parallel to the ground plane, the second end in contact with a feed point, and at least one second conductive element located in proximity to the edge of the ground plane and having first and second ends, the first end extending generally parallel to the ground plane and to the first end of the at least one first conductive element, the second end in contact with the ground plane. | 01-03-2013 |
20130009843 | PRINTED ANTENNA - A printed antenna comprising a substrate, a first ground plane, a low frequency radiation, a high frequency radiation, a first matching portion, a second matching portion is provided. The first ground plane, the low frequency radiation portion, the high frequency radiation portion and the first matching portion are located on an upper surface of the substrate. The low frequency radiation portion is connected to the high frequency radiation portion, and the first matching portion is extended from the first ground plane and towards the high frequency radiation portion. The second matching portion is adjacent to the first matching portion but does not overlap the first matching portion. | 01-10-2013 |
20130009844 | AERIAL COMPRISING A MATCHING DEVICE - The invention relates to antenna technical equipment and can be used as the small-sized aerial. The technical result is significant reduction of overall dimensions of the aerial while retaining sufficient efficiency of radiation within the LW, MW and SW radio communication range and as a result the expansion of the functional abilities of the use of transceiving equipment. Aerial comprising a matching device including inductances contains radiating element. The radiating element is located in a magnetic field of the matching device implemented in the form of the transformer. The transformer is located on open magnetic circuit. The radiating element is electrically connected to the secondary winding of the transformer. | 01-10-2013 |
20130009845 | MULTI-FREQUENCY ANTENNA - An antenna for receiving and transmitting a signal is provided. The antenna includes a connection portion receiving and transmitting the signal, a first radiation portion and a second radiation portion. The connection portion includes a first end, a second end and a third end, wherein the first end is configured at a first distance from a ground. The first radiation portion is connected to the second end, and includes at least one folding area forming thereon at least one folding segment, wherein the folding segment and the connection portion have therebetween a shortest distance being a second distance. The second radiation portion is connected to the third end. | 01-10-2013 |
20130016026 | BROADBAND INTERNAL ANTENNA USING ELECTROMAGNETIC COUPLING SUPPORTING IMPROVED IMPEDANCE MATCHINGAANM Choi; Su-HyunAACI SeoulAACO KRAAGP Choi; Su-Hyun Seoul KRAANM An; Sung-NamAACI SeoulAACO KRAAGP An; Sung-Nam Seoul KRAANM Kim; Byoung-NamAACI Gyeonggi-doAACO KRAAGP Kim; Byoung-Nam Gyeonggi-do KRAANM Lee; Seung-YongAACI Gyeonggi-doAACO KRAAGP Lee; Seung-Yong Gyeonggi-do KRAANM Jung; Jong-HoAACI Gyeonggi-doAACO KRAAGP Jung; Jong-Ho Gyeonggi-do KR - Disclosed is an internal antenna using electromagnetic coupling that supports improved impedance matching. The antenna includes a first conductive member having one end electrically connected with a power feed point; a second conductive member separated from the first conductive member by a particular distance and electrically connected with a ground; a radiator extending from the second conductive member; and a grounding plate joined with the other end of the first conductive member. This antenna provides the advantages of adequately ensuring wide-band and multi-band characteristics while improving impedance matching properties. | 01-17-2013 |
20130033413 | MULTI-BAND INVERTED-F ANTENNA - A multi-band inverted-F antenna including a ground plane, a signal feeding circuit, first, second and third main radiation parts is provided. The signal feeding circuit is electrically isolated from the ground plane and receives/transmits wireless signals. The first and the second main radiation part are both physically and electrically connected to the signal feeding circuit, and generate first and second frequency band operation modes for the inverted-F antenna, respectively. The third main radiation part is electrically isolated from the signal feeding circuit, the first and the second main radiation parts, and generates a third frequency band operation mode for the inverted-F antenna via to signal coupling between the first and the third main radiation parts and/or signal coupling between the second and the third main radiation parts. | 02-07-2013 |
20130038501 | ANTENNA MODULE - In an antenna module, a main portion includes a plurality of insulating sheets made of a flexible material and laminated on each other. An antenna configured to transmit/receive a high-frequency signal is disposed in the main portion. A connection portion is disposed in the main portion and is connected to an electronic device that inputs/outputs the high-frequency signal. A signal transmission line is disposed in the main portion and has a strip line structure or a microstrip line structure to transmit the high-frequency signal. An impedance matching circuit is disposed in the main portion and between the antenna and end of a signal transmission line facing in a negative x direction. An impedance matching circuit is disposed in the main portion and between the connection portion and an end of the signal transmission line facing in a positive x direction. | 02-14-2013 |
20130050048 | SOLDERLESS CIRCULARLY POLARIZED MICROWAVE ANTENNA ELEMENT - Disclosed herein is an antenna feed design for transmitting or receiving a circularly polarized microwave signal, and a communication device using that antenna feed design. Resonating disks are bowl-shaped to balance E-plane and H-plane magnetic field patterns, decreasing cross-polarization, and providing mechanical rigidity. A non-planar circuit replaces planar microstrip transmission lines for transmitting the signal, with 90° phase shifts, from an input point to excitation points. This non-planar circuit overcomes some of the layout problems encountered in planar circuits. It maintains impedance matching from the input point to the excitation points by progressively tapering down the characteristic transmission line impedance of each successive section. The non-planar circuit has sufficient mechanical strength and rigidity to allow it to be supported at only two anchor points. Similarly, the non-planar disks are also of sufficient strength to require only a single anchor point each. Thus, the antenna parts do not require any additional dielectric substrate support, and all parts are DC grounded. The use of fingers surrounding the ground plane and extending towards the resonating disks results in improved off-boresight polarization. All components of the antenna feed are built and combined without the use of solder or dielectric substrate support, creating a stable, corrosion-resistant, low-cross polarization antenna. | 02-28-2013 |
20130057450 | MULTILEVEL ANTENNAE - An apparatus including a wireless communications device has an internal antenna system located within the wireless communications device. The internal antenna system includes a passive antenna set comprising at least one antenna element having at least one multilevel structure, a feeding point to the at least one antenna element and a ground plane. The feeding point and a point on the ground plane define an input/output port for said passive antenna set. The passive antenna set provides a similar impedance level and radiation pattern at two or more frequency bands such that the passive antenna set is capable of both transmitting and receiving wireless signals on selected channels. The selected channels are selectable from a plurality of channels throughout an entire frequency range within each of said two or more frequency bands. | 03-07-2013 |
20130076588 | ANTENNA - Disclosed is an antenna. The antenna includes a first radiating part bent in a predetermined direction, a second radiating part under the first radiating part, a conductive member connected to the second radiating part, and a coupling part spaced apart from the conductive member while surrounding a lateral side of the conductive member. | 03-28-2013 |
20130106672 | ELECTRONIC DEVICE FOR PROCESSING RADIO FREQUENCY SIGNALS AND MATCHING CIRCUIT FOR PROVIDING VARIABLE IMPEDANCE | 05-02-2013 |
20130120217 | MICROWAVE RESONATOR CONFIGURED BY COMPOSITE RIGHT/LEFT-HANDED META-MATERIAL AND ANTENNA APPARATUS PROVIDED WITH THE MICROWAVE RESONATOR - A reflective impedance element is connected to a port of a composite right/left-handed transmission line, and operates at a predetermined operating frequency so that an impedance when the reflective impedance element is seen from the port becomes a pure imaginary number jB. A reflective impedance component is connected to a port of the composite right/left-handed transmission line, and operates at the predetermined operating frequency so that an impedance when the reflective impedance element is seen from the port becomes −jB. | 05-16-2013 |
20130147679 | ANTENNA STRUCTURE OF HANDHELD DEVICE - An antenna structure includes a matching circuit, a flexible printed circuit board, and an external metal element. The matching circuit is configured to provide impedance. The flexible printed circuit board has a variable shape, wherein a metal wire is disposed on the flexible printed circuit board. The external metal element is coupled to a signal source through the metal wire disposed on the flexible printed circuit board and the matching circuit. | 06-13-2013 |
20130154895 | INTEGRATED ANTENNA STRUCTURE - Techniques for implementing an integrated antenna structure are described. In at least some embodiments, the integrated antenna structure includes an antenna that is folded and/or meandered in design to enable the antenna to be incorporated into a compact area. The integrated antenna structure further includes a printed circuit board (PCB) with a ground plane to which the antenna is connected. In implementations, the antenna and the PCB can be combined to form an integrated radiating structure that can be incorporated into a device to enable the device to transmit and/or receive wireless signals. | 06-20-2013 |
20130154896 | ANTENNALESS WIRELESS DEVICE CAPABLE OF OPERATION IN MULTIPLE FREQUENCY REGIONS - The present invention refers to an antennaless wireless handheld or portable device ( | 06-20-2013 |
20130162498 | Low-Profile Wide-Bandwidth Radio Frequency Antenna - The present invention relates to an RF antenna structure that includes a planar structure and a loading plate, such that the planar structure is mounted between a ground plane and the loading plate to form an RF antenna. The loading plate may be about parallel to the ground plane and the planar structure may be about perpendicular to the loading plate and the ground plane. The loading plate may allow the height of the RF antenna structure above the ground plane to be relatively small. For example, the height may be significantly less than one-quarter of a wavelength of RF signals of interest. The planar structure may include two conductive matching elements to help increase the bandwidth of the RF antenna structure. | 06-27-2013 |
20130187826 | TUNABLE BROADBAND ANTENNA MATCHING CIRCUITS AND DEVICES USING SAME - An improved wireless radio-frequency (RF) transmission system is disclosed. The wireless RF transmission system comprises: 1) a radio frequency (RF) transceiver configured to transmit and receive radio-frequency signals; ii) an electrically small antenna having a complex impedance comprising a real part and an imaginary part; and iii) a tunable negative impedance converter (NIC) circuit coupling the electrically small antenna to the RF transceiver. The tunable NIC circuit is configured to perform antenna matching by reducing the imaginary part of the complex impedance of the electrically small antenna. The tunable NIC circuit is tuned by adjusting a transconductance value associated with the tunable NIC circuit. | 07-25-2013 |
20130187827 | MULTILEVEL ANTENNAE - An apparatus includes a multi-band antenna element that operates in at least three frequency bands and includes geometric elements arranged to define empty spaces in the antenna element to provide at least three winding current paths through the antenna element which circumvent the empty spaces, the at least three winding current paths respectively corresponding to the at least three frequency bands, wherein each of two or more of the geometric elements is traversed by more than one of the at least three respective winding current paths. The antenna element provides a substantially similar impedance level and radiation pattern in the at least three frequency bands. The geometric elements are arranged such that the antenna element does not comprise substantially non-overlapping portions that serve as respective single band antennas, and a geometry of the antenna element is not substantially self-repeating. | 07-25-2013 |
20130194152 | MULTILEVEL ANTENNAE - An apparatus includes an internal, multiband antenna element concealed within a portable communication device. The antenna element operates in at least three frequency bands and includes geometric elements arranged to define empty spaces in the antenna element to provide at least three winding current paths through the antenna element which circumvent the empty spaces, the at least three winding current paths respectively corresponding to the at least three frequency bands to provide the antenna element with multi-band behavior, wherein each of two or more of the geometric elements is traversed by the at least three winding current paths. The apparatus further includes a ground plane, with the antenna element being electrically coupled to the ground plane. The geometric elements are arranged such that the antenna element does not comprise a group of single band antennas that respectively operate in the at least three frequency bands. | 08-01-2013 |
20130194153 | MULTILEVEL ANTENNAE - An apparatus includes an antenna concealed within a portable communication device and configured to operate in non-overlapping frequency bands. The antenna includes an antenna element with a multilevel structure of geometric elements arranged to define empty spaces to provide winding current paths through the antenna element which circumvent the empty spaces, the winding current paths respectively corresponding to the non-overlapping frequency bands. The antenna further includes a ground plane, with the antenna element being electrically coupled to the ground plane. The antenna element provides a substantially similar impedance level and radiation pattern in the non-overlapping frequency bands. The geometric elements are arranged such that the antenna element does not comprise a group of single band antennas that respectively operate in the non-overlapping frequency bands, and the antenna element is not a fractal type antenna element. | 08-01-2013 |
20130194154 | MULTILEVEL ANTENNAE - An apparatus includes an antenna element that operates in at least first and second non-overlapping frequency bands and has geometric elements arranged to define empty spaces in the antenna element to provide first and second winding current paths through the antenna element, the first and second winding current paths circumventing the empty spaces and respectively corresponding to the first and second frequency bands to provide the antenna element with multi-band behavior. The apparatus further includes a ground plane, with the antenna element being electrically coupled to the ground plane. The antenna element provides a substantially similar impedance level and radiation pattern in the first and second frequency bands. The geometric elements are arranged such that the antenna element does not comprise a group of single band antennas that respectively operate in the first and second frequency bands, and the antenna element is not a fractal type antenna element. | 08-01-2013 |
20130207871 | Compact multi-band antenna with integrating fed through co-axial cable - An antenna system comprises an antenna that integrates a separate fed through coaxial cable as part of its resonant structure. The fed through coaxial cable is used to feed a second antenna. This design allows for the antenna and the fed through cable to be accommodated in a very limited space at the edge of a handheld electronic device. | 08-15-2013 |
20130207872 | Adjustable Impedance Matching Network - An impedance matching network includes a first terminal, a second terminal, and a reference potential terminal. The impedance matching network further includes a first shunt branch between the first terminal and the reference potential terminal, the first shunt branch including a capacitive element. The impedance matching network also includes a second shunt branch between the second terminal and the reference potential terminal, the second shunt branch including an inductive element. Furthermore, the impedance matching network includes a transmission line transformer with a first inductor path and a second inductor path, wherein the first inductor path connects the first terminal and the second terminal. An alternative impedance matching network includes a transformer and an adaptive matching network. The transformer is configured to transform an impedance connected to a first port so that a corresponding transformed impedance lies within a confined impedance region in a complex impedance plane. | 08-15-2013 |
20130234909 | CIRCULARLY POLARIZED ANTENNA - The present invention relates to a circularly polarized antenna which is applicable to small-sized communication modules and terminals to have a subminiature and ultralight antenna using a coaxial connector and a series power distributor, including: an upper printed circuit board having a plurality of horizontal monopole radiating elements which are arranged at a constant intervals; a lower printed circuit board having a feed network which is provided at a constant interval from the upper printed circuit board to face the upper printed circuit board; and a plurality of coaxial connectors which electrically connect each horizontal monopole radiating element of the upper printed circuit board with the feed network of the lower printed circuit board. | 09-12-2013 |
20130257676 | RADIO FREQUENCY ANTENNA CIRCUIT - Presented is radio frequency antenna circuit for portable and/or compact electronic devices. Embodiments comprise an antenna connected to an unbalanced current feeding arrangement. The unbalanced feeding arrangement may generate common mode currents which increase the overall radiation resistance and efficiency of the antenna circuit. | 10-03-2013 |
20130265207 | ANTENNA-DEVICE SUBSTRATE AND ANTENNA DEVICE - Provided are an antenna-device substrate which is capable of flexibly adjusting multiple resonance frequencies and can also be made small and thin and an antenna device provided with the same. The present invention is provided with a substrate main body ( | 10-10-2013 |
20130271341 | MULTIBAND ANTENNA AND WIRELESS COMMUNICATION DEVICE USING SAME - A multiband antenna, includes a main antenna, a coupling unit, and a matching unit. The main antenna includes a feed portion, a bent portion, a radiation portion, and an extending portion in a same plane. One end of the feed portion is connected to the coupling unit. The bent portion is perpendicularly connected to the other end of the feed portion. The radiation portion is parallel with the feed portion and perpendicularly connected to one end of the bent portion away from the feed portion. The extending portion is connected to one end of the radiation portion away from the bent portion, the coupling unit is parallel with the main antenna and connected to the matching unit, the matching unit feeds signals to and grounds the multiband antenna. | 10-17-2013 |
20130278479 | Feeding Apparatus for Monopole Antenna and Related Analog Broadcast Player System and Integration System - An analog broadcast playing system includes a monopole antenna, a feeding apparatus and a multimedia player device. The monopole antenna has a radiating unit and a grounding unit. The feeding apparatus includes a first feeding unit and a second feeding unit. The first feeding unit is coupled to an inner conductor of a coaxial cable for feeding a multimedia signal transmitted by the coaxial cable to the radiating unit. The second feeding unit is coupled to a conducting mesh of the coaxial cable for connecting to the grounding unit. The multimedia player device is coupled to the radiating unit for demodulating and playing the multimedia signal. | 10-24-2013 |
20130285876 | DUAL BAND ANTENNA WITH CIRCULAR POLARIZATION - A dual band antenna with circular polarization is applied in a handheld device and includes a substrate, a radiation metal portion and a feed-in stripline. The substrate has a vacant area and a feed-in point. The feed-in point is disposed near and outside the vacant area. The radiation metal portion is disposed vertically to a surface of the substrate at the edge of the vacant area, and includes a radiation surface and a meandering structure. The radiation surface is disposed at one side of the radiation metal portion and near the substrate. The meandering structure is disposed at another side of the radiation metal portion and far from the substrate. The feed-in stripline is disposed on the substrate. One end of the feed-in stripline is electrically connected to the feed-in point, and the other end of the feed-in stripline is electrically connected to the radiation metal portion. | 10-31-2013 |
20130293439 | ANTENNA DEVICE - An antenna for wireless telecommunication comprises a piezoelectric material layer, the piezoelectric material layer being formed such that when an electromagnetic wave is applied thereto, the first piezoelectric material layer is excited at the frequency of the electromagnetic wave. The antenna also comprises an acoustic cavity layer arranged to collect the acoustic energy received from the first piezoelectric layer and first and second electrode layers positioned on either side of the acoustic cavity layer, the electrode layers being arranged to transfer electrical energy to and from both the piezoelectric material layer and the acoustic cavity layer. | 11-07-2013 |
20130293440 | MOBILE WIRELESS COMMUNICATIONS DEVICE WITH POLARIZATION DIVERSITY WIRELESS LOCAL AREA NETWORK (LAN) ANTENNA AND RELATED METHODS - A mobile wireless LAN communications device may include a portable, handheld housing, and a wireless LAN transceiver carried by the housing. A polarization diversity wireless LAN antenna may be included for cooperating with the wireless LAN transceiver to communicate over a wireless LAN. The polarization diversity wireless LAN antenna may include a first antenna element coupled to the wireless LAN transceiver having a first shape and a first polarization, and a second antenna element coupled to the wireless LAN transceiver having a second shape different from the first shape. The second antenna element may also have a second polarization different from the first polarization. | 11-07-2013 |
20140015730 | Concentrated Wireless Device Providing Operability in Multiple Frequency Regions - A radiating system for transmitting and receiving signals in first and second frequency regions includes a radiating structure, a radiofrequency system, and an external port. The radiating structure has first and second isolated radiation boosters coupled to a ground plane layer. A first internal port of the radiating structure is between the first radiation booster and the ground plane layer, and a second internal port is between the second radiation booster and the ground plane layer. A distance between the two internal ports is less than 0.06 times a wavelength of the lowest frequency. The maximum size of the first and second radiation boosters is smaller than 1/30 times the wavelength of the lowest frequency. The radiofrequency system includes two ports connected respectively to the first and the second internal ports of the radiating structure, and a port connected to the external port of the radiating system. | 01-16-2014 |
20140043203 | FRONT END PARALLEL RESONANT SWITCH - A front end parallel resonant switch is disclosed. In an exemplary embodiment, an apparatus includes an inductor and a capacitor configured to couple a first RF transmission to an antenna, and at least one switch configured to connect the inductor to the capacitor to form a matching network when transmitting the first RF transmission from the antenna, and to connect the inductor to capacitor to form a parallel resonant circuit when transmitting a second RF transmission from the antenna. | 02-13-2014 |
20140071015 | TRIM ALGORITHM FOR A MEDICAL DEVICE ANTENNA - The disclosure pertains to tuning the impedance of an antenna impedance matching circuit according to operating parameters. The algorithm causes simultaneous adjustment of the impedance of a plurality of variable components of an antenna impedance matching circuit. The algorithm includes selecting between at least one value over a plurality of values in an array. The selected value represents a set of discrete values for each of the plurality of variable components. The plurality of variable components are adjusted to match the selected discrete values. An input signal is applied to the impedance matching circuit after each adjustment, and the magnitude of the signal received in response to the input signal is measured and compared to the magnitude of signal measured for previously set values. A determination is made as to the values of the plurality of variable components that result in the signal with the greatest magnitude. | 03-13-2014 |
20140078014 | ANTENNA DEVICE AND COMMUNICATION TERMINAL APPARATUS - An antenna device includes an antenna element and an impedance conversion circuit connected to the antenna element. The impedance conversion circuit is inserted between the antenna element and a feeding circuit, and includes a first series circuit where a first coil conductor and a second coil conductor are connected in series, and a second series circuit where a third coil conductor and a fourth coil conductor are connected in series. The first and second coil conductors define a closed magnetic circuit through which a closed loop of a first magnetic flux passes, and the third and fourth coil conductors define a closed magnetic circuit through which a closed loop of a second magnetic flux passes. Consequently, the antenna device performs impedance matching with the feeding circuit in a wide frequency band. | 03-20-2014 |
20140085160 | MULTI-BAND ANTENNA FOR WIRELESS COMMUNICATION - A multi-band antenna includes a ground plane, a single antenna element, a frequency multiplexing circuit and at least two feeding strips coupled between the frequency multiplexing circuit and the single antenna element. Furthermore, the feeding of the antenna is arranged by one or more feeding points arranged between the ground plane and the frequency multiplexing circuit. According to first implementation one feeding point is arranged for at least two antenna branches. The signal fed into the feeding point is multiplexed by the multiplexing circuit to the antenna branches. According to at least one other implementation a dedicated feeding point is arranged for each of the antenna branches. At the same time the isolation of the frequencies between the different branches is arranged. This can be achieved e.g. by a multiplexing circuit. Moreover, impedance of the antenna branches can be matched with matching circuitry. | 03-27-2014 |
20140091980 | IMPEDANCE MATCHING CIRCUIT AND ANTENNA SYSTEM - An impedance matching circuit is connected to a first circuit block (impedance matching target circuit) that requires impedance matching and that has one terminal connected to a signal line and the other terminal connected to a ground, the impedance matching circuit having a second circuit block that has a first circuit and a second circuit connected in parallel. In the first circuit, a first capacitor having a variable capacitance and a first inductor having a first inductance are connected in series, and in the second circuit, a second inductor having a second inductance and a switch are connected are connected in series. The impedance matching circuit has one terminal connected to the signal line of the first circuit block and the other terminal connected to the ground of the first circuit block. | 04-03-2014 |
20140097998 | ANTENNA ASSEMBLY AND WIRELESS COMMUNICATION DEVICE USING SAME - An antenna assembly includes an antenna, a radio frequency (RF) unit, and a matching unit. The antenna includes a first radiator and a second radiator. The matching unit is electronically connected between the antenna and the RF unit, and includes a first matching circuit and a second matching circuit. The first matching circuit matches impedance of the first radiator, and the second matching circuit matches impedance of the second radiator. | 04-10-2014 |
20140097999 | HIGH-FREQUENCY MODULE - A high-frequency module includes port electrodes defining external connection terminals provided on a multilayer body including dielectric layers. A first port electrode is connected to an antenna. A plurality of port electrodes other than the first port electrode are respectively connected to communication systems supporting respective frequency bands. The first port electrode is connected to the plurality of other port electrodes through a plurality of switch elements. A first group of the plurality of switch elements and a second group of the plurality of switch elements are not connected to each other within a switch circuit and are connectable to each other through a common terminal outside of the switch circuit. As a result, a high-frequency module that allows a design change to be made using the same switch circuit without changing the switch circuit is provided. | 04-10-2014 |
20140104131 | RFID System - A magnetic field focusing assembly includes a magnetic field generating device configured to generate a magnetic field, and a split ring resonator assembly configured to be magnetically coupled to the magnetic field generating device and configured to focus the magnetic field produced by the magnetic field generating device. | 04-17-2014 |
20140125546 | CONTROLLING MTD ANTENNA VSWR AND COUPLING FOR SAR CONTROL - A method and apparatus has been developed to reduce SAR for a mobile device by designing appropriate matching circuits between each antenna and its power amplifier. In the presence of such matching circuits the normal phase adjustments may be carried out to provide a preferred safe SAR level that can be maintained during phase adjustment without sacrificing TRP. | 05-08-2014 |
20140139394 | ULTRA-WIDEBAND ANTENNA HAVING FREQUENCY BAND NOTCH FUNCTION - An ultra-wideband (UWB) antenna having a frequency band notch function is provided. The UWB antenna includes a substrate, a radiation part, a feeding part, and a slot. The radiation part is formed on one surface of the substrate, and radiates radio signals. The feeding part is formed on the other surface of the substrate, and feeds electric signals to the radiation part. The slot is formed in a stub formed at one end of the feeding part, and rejects frequencies in a notch band in the radio signals that are radiated by the radiation part. | 05-22-2014 |
20140145899 | Mobile Devices with Conductive Liquid Antennas and Related Methods - Mobile devices with conductive liquid antennas and related methods are provided. In this regard, a representative mobile device includes a first antenna having a first channel and a first liquid, the first channel defining a first interior volume, the first liquid being electrically conductive and located within the first channel, the first liquid further exhibiting a first volume smaller than the first interior volume; and a first antenna feed mounted such that, responsive to the device being in a first orientation, the first liquid electrically communicates with the first antenna feed. | 05-29-2014 |
20140145900 | COMMUNICATION DEVICE AND RECONFIGURABLE ANTENNA ELEMENT THEREIN - A communication device including a ground element, an antenna element and a switching unit is provided. The antenna element is substantially a loop antenna and includes a first part, a second part and a third part. The second part includes (N−1) bends for forming N connection sections. The third part includes (P−1) bends for forming P ground sections. The N connection sections are connected in series between a first end of a first ground section and the first part. A second end of an i | 05-29-2014 |
20140184466 | COMMUNICATION DEVICE AND ANTENNA ELEMENT THEREIN - A communication device including a ground element and an antenna element is provided. The antenna element is close to the ground element. The antenna element includes a first radiation element and a second radiation element. The first radiation element provides a first current path and operates in a first band. The second radiation element provides a second current path and operates in a second band. The frequencies of the second band are higher than those of the first band, and the length of second current path is greater than that of first current path. | 07-03-2014 |
20140184467 | ULTRA-BROADBAND ANTENNA WITH CAPACITIVELY COUPLED GROUND LEG - An antenna including a ground plane, a broadband radiating element mounted on the ground plane and including a feed point, the feed point having a first impedance, a feed for feeding the broadband radiating element at the feed point, the feed having a second impedance and a ground leg extending between the broadband radiating element and the ground plane for impedance matching the first impedance to the second impedance, the ground leg being capacitively coupled to the broadband radiating element. | 07-03-2014 |
20140266964 | IMPEDANCE CONVERSION DEVICE, ANTENNA DEVICE AND COMMUNICATION TERMINAL DEVICE - In a case in which a capacitor is not provided in parallel with a second inductance element, the impedance ratio between a first inductance element and the second inductance element is constant regardless of the frequency, but when a capacitor is provided, the parallel impedance of the capacitor and the second inductance element gradually increases at frequencies equal to and below the resonant frequency. Consequently, at frequencies equal to or below the resonant frequency, the higher the frequency becomes, the larger the value of the real portion of the impedance observed on a high-frequency-circuit side becomes. Therefore, by appropriately setting the values of the first inductance element, the second inductance element, and the capacitor, the frequency characteristics of the real portion of the impedance observed on the high-frequency-circuit side can be set to be similar to the frequency characteristics of the radiation resistance of the antenna. | 09-18-2014 |
20140285394 | ELECTROMAGNETICALLY COUPLED BROADBAND MULTI-FREQUENCY MONOPOLE WITH FLEXIBLE POLYMER RADOME ENCLOSURE FOR WIRELESS RADIO - Disclosed herein is a top load multi-band monopole antenna that is utilized with an integrated electromagnetic coupling feed wire and resonator combination achieving broad band and multi-band performance for multiple frequency spectrums. The top loaded monopole can utilize 450-520 MHz, 698 through 960 MHz and 1000 through 3000 MHz bands contiguously and simultaneously by implementation of the coupling feed wire and resonator combination. The electromagnetically coupled top load resonator in conjunction with the lower monopole resonator section matches impedance for both low frequency and high frequency range operation. A flexible radome housing structure augments impact resistance by permitting the monopole radiator aperture to flex under mechanical load while maintaining reliable signal transmission and reception properties. | 09-25-2014 |
20140320375 | ANTENNA DEVICE AND METHOD OF ANTENNA CONFIGURATION - A communication antenna device (D), on board a motor vehicle, for communicating with an antenna of a portable device, includes:
| 10-30-2014 |
20140340277 | COMMUNICATION DEVICE AND ANTENNA ELEMENT THEREIN - A communication device including a ground element and an antenna element is provided. The antenna element includes a metal element. The metal element has a plurality of bends and substantially forms a loop structure with a gap. The gap is between a first open end and a second open end of the metal element. The metal element extends along an edge of the ground element and does not overlap with the ground element. The antenna element has a feeding point. A first portion of the metal element is between the feeding point and the first open end, and a second portion of the metal element is between the feeding point and the second open end. The feeding point, the first open end, and the second open end are all facing or adjacent to the edge of the ground element. | 11-20-2014 |
20140340278 | VARIABLE Z0 ANTENNA DEVICE DESIGN SYSTEM AND METHOD - A variable Z | 11-20-2014 |
20140347243 | ELECTRICALLY-SMALL, LOW-PROFILE, ULTRA-WIDEBAND ANTENNA - An ultra-wideband, low profile antenna is provided. The antenna includes a ground plane substrate, a feed conductor, a top hat conductor, a shorting arm, and a ring slot. The feed conductor includes a first end and a second end. The first end is configured for electrical coupling to a feed network through a feed element extending from the ground plane substrate. The top hat conductor includes a generally planar sheet mounted to the second end of the feed conductor in a first plane approximately parallel to a second plane defined by the ground plane substrate. The shorting arm includes a third end and a fourth end. The third end is mounted to the top hat conductor, and the fourth end is mounted to the ground plane substrate. The ring slot is formed in the ground plane substrate around the feed element. | 11-27-2014 |
20140354508 | MULTI-BAND ANTENNA AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - A multi-band antenna includes a radiating portion, a feed portion, a ground portion, a first switch module, and a second switch module. The radiating portion includes a plurality of connecting ends. The ground portion includes two ground sections with different impedances. The first switch module connects the feed portion to a first connecting end or a second connecting end, and the second switch module connects one of the ground sections to a third connecting end or a fourth connecting end. A wireless communication device employing the multi-band antenna is also disclosed. | 12-04-2014 |
20140368402 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - An antenna structure includes a feed section, a ground section, a common section, a first radiator, a second radiator, and a third radiator. The common section is electrically connected to the feed section, and the third radiator is electrically connected to the ground section. The first radiator, the second radiator, and the third radiator are all connected to the common section. The second radiator is spaced from the third radiator to allow current to be coupled from the second radiator to the third radiator. | 12-18-2014 |
20150077306 | Adjustable spiral antenna for portable use - A spiral, helical antenna is configured to produce a generally circular polarized radiation pattern covering a range of frequencies, over a ground plane. The antenna is comprised of a spring-like spiral conductor that may be held in compression by a size and shape regulating outer nonconductive membrane. The assembly may be compressed and or extended to adjust the antenna for best performance in a particular situation. The assembly may be compressed into a generally flattened state for storage and or transportation, and extended at a later time for use. Accurate antenna dimensions and good performance are afforded by the use of high quality spring materials in conjunction with precise membrane dimensions. | 03-19-2015 |
20150084827 | Enhanced Connected Tiled Array Antenna - An antenna device including: a conductive ground sheet of a substantially planar form; and a series of spaced apart conductive patches arranged substantially in a plane parallel to the conductive ground plane; a series of conductive feed interconnections electromagnetically coupled to the spaced apart array of conductive patches. | 03-26-2015 |
20150091776 | Antenna Transmit Receive Switch - An antenna switch is presented. The antenna switch can connect an antenna to either transmit circuitry or receive circuitry, depending on control signals applied to the antenna switch while presenting different impedances to a connected circuitry. | 04-02-2015 |
20150102976 | COMMUNICATION DEVICE AND ANTENNA ELEMENT THEREIN - A communication device includes a ground element and an antenna element. The antenna element is adjacent to an edge of the ground element, and includes a first metal element and a second metal element. A first end of the first metal element is coupled through a first shorting element to the ground element. A second end of the first metal element is open and adjacent to the first end. The second metal element is between the first metal element and the edge of the ground element. A shorting point on the second metal element is coupled through a second shorting element to the ground element. A feeding point on the second metal element is coupled through a capacitive element to a signal source. A third end of the second metal element is adjacent to the first shorting element. A fourth end of the second metal element is open. | 04-16-2015 |
20150116181 | MULTI-BAND SUBSCRIBER ANTENNA FOR PORTABLE RADIOS - An antenna is provided with improved ruggedness and flexibility through the use of an embedded substrate with impedance matching circuitry disposed thereon, and a flexible electrical interconnect. The flexible electrical interconnect is coupled between the substrate and an antenna connector. The antenna comprises a first top flexible section having the flexible radiator element, a second stiff section comprising the impedance matching circuit for multi-band operation, and a third lower flexible section comprising the flexible electrical interconnect. Portable radio products incorporating the antenna can now provide multiband capability along with protection against drop. | 04-30-2015 |
20150116182 | ANTENNA WITH EMBEDDED WIDEBAND MATCHING SUBSTRATE - An antenna ( | 04-30-2015 |
20150116183 | SELF-CONFIGURABLE RESONANCE ANTENNA - A self-configurable resonance antenna includes a main antenna for transmitting and receiving radio waves of a plurality of mutually different frequency bands, a coupling element having at least two radiating patches with different effective electrical lengths for configuring the impedance of the self-configurable resonance antenna, and a matching circuit disposed between the main antenna and the coupling element. The matching circuit has a filter, a RF detector, a switching logic and a RF switch, the RF switch switching between at least the two radiating patches with different effective electrical lengths for adjusting the main antenna operating in different frequency bands. | 04-30-2015 |
20150138037 | ANTENNA ASSEMBLIES AND METHODS OF MANUFACTURING THE SAME - According to various aspects, exemplary embodiments are disclosed of antenna assemblies and methods of manufacturing the same. In an exemplary embodiment, a method generally includes forming (e.g., molding, etc.) a sleeve over and/or between a first portion of a first component (e.g., a bushing, etc.) and a second portion of a second component (e.g., adaptor, etc.). The sleeve is coupled to the first and second portions of the respective first and second components. The method may also include removably attaching an antenna connector subassembly to the first component such that a printed circuit board assembly of the antenna connector subassembly is covered by the sleeve. The method may additionally include overmolding a sheath over the sleeve and one or more radiating elements of a multiband antenna assembly that includes the antenna connector subassembly, whereby the sleeve covers and protects the printed circuit board assembly during the overmolding. | 05-21-2015 |
20150303560 | Power amplifying radiator (PAR) - A power amplifying radiator is disclosed that includes an electric field receiver or capacitive power coupling and impedance matching element, a capacitive coupler, a cavity combiner providing electromagnetic communication with the capacitive coupler, and a phased-array antenna/one or more phased-array antennas. The capacitive power coupling and impedance matching element is in electromagnetic communication with the one or more phased-array antennas via the cavity combiner. The power amplifying radiator may be included within a high power microwave system. | 10-22-2015 |
20150325927 | ANTENNA DEVICE AND ELECTRONIC APPLIANCE - An antenna device includes a plurality of coil antennas each including a coil conductor wound around a winding axis and a planar conductor including a first edge and a second edge between which a corner or a curved portion is interposed. A first coil antenna is arranged at a position along the first edge of the planar conductor at which one coil opening thereof is superposed with the planar conductor when viewed in plan and that is close to the corner or close to the curved portion. A second coil antenna is arranged at a position along the second edge of the planar conductor at which one coil opening thereof is superposed with the planar conductor when viewed in plan. The first coil antenna and the second coil antenna are connected such that magnetic flux generated by the first coil antenna and magnetic flux generated by the second coil antenna are in phase with each other in a direction toward the outside with the first edge and the second edge of the planar conductor defining boundaries. | 11-12-2015 |
20150333724 | ORIENTATION AGNOSTIC MILLIMETER-WAVE RADIO LINK - Described herein are architectures, platforms and methods for implementing an orientation-agnostic millimeter-wave (mm-wave) antenna in a portable device. | 11-19-2015 |
20150349425 | PATCH ANTENNA ELEMENT - An antenna element for transmission and/or reception of signals within a frequency band comprises a ground plane ( | 12-03-2015 |
20150372384 | SWITCHABLE PI SHAPE ANTENNA - A mobile device including a housing having a distal end, and electronics disposed in the housing configured to operate the mobile device. A connector is coupled to the electronics, and a Pi-shaped antenna has a coupling coupled to the connector to create a resonance using the connector. The Pi-shaped antenna and the connector are configured to wirelessly send and receive the wireless signals. An impedance matching network matches the impedance of the electronics to the Pi-shaped antenna. In some embodiments, the impedance matching network is switchable by the electronics and is configured to match an impedance of the electronics to the Pi-shaped antenna in at least two states, over multiple RF bands. | 12-24-2015 |
20160020511 | OMNI DIRECTIONAL CIRCULARLY-POLARIZED ANTENNA - An omni circularly-polarized antenna comprises: upper and lower layers of metal strips placed horizontally and having identical spoke-like shapes, each of the layers of said metal strips composed of a center and a plurality of spokes connected to the center, the plurality of spokes, at a circumferential position of the spoke-like shape, having extensions extending towards an identical direction along the circumference, wherein extending directions of the extensions of the spokes in the upper and lower layers of metal strips are opposite; metal poles with a number being identical with a number of the spokes in the metal strips, the metal poles vertically interconnecting ends of the extensions of the spokes in the upper and lower layers of metal strips; a coaxial connector comprising an elongated inner conductor and an outer conductor, wherein the elongated inner conductor is connected to the center of the upper layer of metal strip, and the outer conductor is connected to the center of the lower layer of metal strip. | 01-21-2016 |
20160028156 | HIGH-FREQUENCY FILTER INCLUDING MATCHING CIRCUIT - A high-frequency filter includes a first output to output a first signal, a first filter, a second filter, and a first matching circuit connected to an output of the first filter and to an output of the second filter. The first signal is provided to the first output from one of the output of the first filter and the output of the second filter via the first matching circuit. The first matching circuit includes a resonator connected in series between the first output and the output of only one of the first filter and the second filter. | 01-28-2016 |
20160126622 | INTEGRATED MULTI-BAND BANDPASS FILTERS BASED ON DIELECTRIC RESONATORS FOR MOBILE AND OTHER COMMUNICATION DEVICES AND APPLICATIONS - Multi-band radio frequency communication is performed using an integrated multi-band bandpass filter implemented based on ring resonators, such as concentric dielectric ring resonators. By constructing the multi-band bandpass filter using concentric ring configurations, the print circuit board (PCB) real estate requirement of multiple filters operating at multiple frequency bands is significantly reduced. Various configurations of the multi-band bandpass filter based on the concentric ring resonators provide flexibility in the layout design and manufacturing of multi-band radios for mobile devices, such as compact smartphones. These configurations of the concentric ring resonators can include but are not limited: a slot-coupling configuration, a direct-coupling configuration, and an embedded direct-coupling configuration. | 05-05-2016 |
20160126623 | ANTENNA IMPEDANCE MATCHING AND APERTURE TUNING CIRCUITRY - Antenna aperture tuning circuitry includes a first signal path and a second signal path coupled in parallel between an antenna radiating element and ground. A first LC resonator and a second LC resonator are each coupled between the first signal path and ground. The first LC resonator and the second LC resonator are electromagnetically coupled such that a coupling factor between the first LC resonator and the second LC resonator is between about 1.0% and 40.0%. A third LC resonator and a fourth LC resonator are each coupled between the second signal path and ground. The third LC resonator and the fourth LC resonator are electromagnetically coupled such that a coupling factor between the third LC resonator and the fourth LC resonator is between about 1.0% and 40.0%. | 05-05-2016 |
20160126640 | DIVERSITY ANTENNA APPARATUS OF MOBILE TERMINAL AND IMPLEMENTATION METHOD THEREOF - Provided is a diversity antenna apparatus of a mobile terminal including a main antenna and a sub-antenna for performing an auxiliary function using a separate sub-antenna processing module, and an implementation method thereof. When the auxiliary function is not performed, a controller of the mobile terminal disconnects the sub-antenna from the sub-antenna processing module and electrically connects the sub-antenna to an RF module through a switch such that the sub-antenna operates as a diversity antenna. | 05-05-2016 |
20160134012 | COMMUNICATION DEVICE - A communication device includes an antenna unit, a switch unit, a matching unit which is connected between the antenna and switch units, a communication unit which is connected to the switch unit, and a switch control unit. When the switch unit is in a conductive state, the matching unit matches a first impedance occurring if the antenna unit is seen from the matching unit and a second impedance occurring if the switch unit is seen from the matching unit. The switch control unit controls the switch unit so that the switch unit is set to the conductive state when the communication unit communicates via the antenna unit, and so that the switch unit is set to an interrupted state when the communication unit is to be protected from overvoltage. The switch control unit and switch unit are semiconductors formed under a first process rule and second process rule, respectively. | 05-12-2016 |
20160141755 | METHOD AND APPARATUS FOR A COMMUNICATION DEVICE - There are disclosed various methods for a communication device and apparatuses comprising an antenna and a transmitter. In some embodiments of the method a transmission signal is provided to a first feed point ( | 05-19-2016 |
20160141756 | Antennaless Wireless Device - A radiating system of a wireless device transmits and receives electromagnetic wave signals in a frequency region and comprises an external port, a radiating structure, and a radiofrequency system. The radiating structure includes: a ground plane layer with a connection point; a radiation booster with a connection point and being smaller than 1/30 of a free-space wavelength corresponding to a lowest frequency of the frequency region; and an internal port between the radiation booster connection point and the ground plane layer connection point. The radiofrequency system includes: a first port connected to the radiating structure's internal port; and a second port connected to the external port. An input impedance at radiating structure's disconnected internal port has a non-zero imaginary part across the frequency region. The radiofrequency system modifies impedance of the radiating structure to provide impedance matching to the radiating system within the frequency region at the external port. | 05-19-2016 |
20160381784 | COMMUNICATION MODULE AND METHOD OF MANUFACTURING COMMUNICATION MODULE - A communication module includes a flexible board having a first region, a second region, and a third region located between the first region and the second region, a communication circuit including a communication electronic component mounted on one surface of the first region, an antenna dielectric mounted on a portion of one surface of the second region, a matching circuit including a matching electronic component mounted on another portion of the one surface of the second region, and an antenna including a metal pattern formed in the other surface of the second region, the matching circuit matches the antenna with the communication circuit, the communication circuit is sealed with a resin, the third region is folded, and the resin and the antenna dielectric are brought into contact with each other. | 12-29-2016 |
20180026361 | ANTENNA FOR WIRELESS COMMUNICATION AND ELECTRONIC DEVICE INCLUDING THE SAME | 01-25-2018 |