Entries |
Document | Title | Date |
20080198082 | Antenna Diversity System and Slot Antenna Component - The present invention refers to an antenna diversity system comprising at least a first antenna and a second antenna wherein the first antenna substantially behaves as an electric current source or as a magnetic current source, and the second antenna substantially behaves as an electric current source or as a magnetic current source and a corresponding wireless device. Further the invention relates to an SMT-type slot-antenna component comprising at least one conductive surface or sheet of metal in which the pattern of a slot is created, at least one contact terminal accessible from the exterior of said component to electrically connect the conductive surface included in the slot-antenna component with the ground plane of a circuit board such as a printed circuit board and a corresponding wireless device. | 08-21-2008 |
20080204340 | MULTI-BAND ANTENNA AND MOBILE COMMUNICATION TERMINAL HAVING THE SAME - There is provided a mobile communication terminal including: a dielectric substrate; a ground surface formed on a first area of the dielectric substrate; a radiation part disposed on a second area where the ground surface is not formed, at a predetermined distance from the dielectric substrate, the radiation part having first and second slots formed thereon; a feeding line formed on the second area of the dielectric substrate and having one end connected to the radiation part; a ground line disposed on the second area of the dielectric substrate at a predetermined distance from the feeding line and having one end connected to the radiation part and another end connected to the ground surface; and a matching ground surface formed on the second area of the dielectric substrate, the matching ground surface disposed in a superimposed relationship with a portion of the radiation part and extending from the ground surface to be capacitively coupled to the radiation part. | 08-28-2008 |
20080211726 | Wide bandwidth balanced antipodal tapered slot antenna and array including a magnetic slot - A balanced, antipodal tapered slot antenna includes one or more antenna elements or unit cells having metallic cross walls that are located in spaces between the adjacent elements of the antenna. The elements can include vias interconnecting metallic conductors of the elements and one or more magnetic slots in the metallic conductors. A plurality of the antenna elements or unit cells can be arranged in an antenna array that has a mirrored configuration with adjacent intermediate neighboring elements of the antenna array mirrored one-dimensionally with elements reversed along the E-plane, or doubly-mirrored, two-dimensionally, in the E-plane and the H-plane by reversing the orientation of alternate elements. Metallic cross walls and metallic rods are disposed in a non-electrically contacting relationship with adjacent antenna elements. The substrate of the antenna includes dielectric material located at the aperture of the antenna element. | 09-04-2008 |
20080231532 | MULTI-BAND SLOT-STRIP ANTENNA - A multi-band antenna includes a planar conductive layer that comprises a conductive region and a non-conductive region. The conductive region and the non-conductive region together define a first slot-strip structure, a second slot-strip structure coupled to the first slot-strip structure, and a third slot-strip structure coupled to the second slot-strip structure. The first slot-strip structure includes a signal feed portion. The second slot-strip structure includes a first signal grounding portion. The third slot-strip structure includes a second signal grounding portion. | 09-25-2008 |
20080246678 | SLOT-STRIP ANTENNA APPARATUS FOR A RADIO DEVICE OPERABLE OVER MULTIPLE FREQUENCY BANDS - A hybrid slot-strip antenna apparatus, and an associated methodology, for a multi-mode mobile station or other radio device. The antenna is formed of a plurality of slot-strips disposed upon a printed circuit board, or other substrate. The antenna is defined by width and length design parameters, the selections of which are determinative of the antenna functionality. Through appropriate selection of the design parameters, the antenna is operable, that is, resonant, at each of the frequency bands of the multi-mode mobile station. | 10-09-2008 |
20080258989 | SLOT-LOADED MICROSTRIP ANTENNA AND RELATED METHODS - A microstrip antenna may include an electrically conductive ground plane layer, a dielectric layer adjacent the electrically conductive ground plane layer, and an electrically conductive patch layer adjacent the dielectric layer on a side thereof opposite the electrically conducive ground plane layer. The electrically conductive patch layer may be electrically floating with respect to the electrically conductive ground plane layer and may comprise a body portion and a feed strip extending outwardly from an interior medial portion of the body portion. The feed strip may have opposing first and second sides and an end electrically connected to the body portion. The body portion may have spaced apart first and second slots adjacent respective ones of the first and second opposite sides of the feed strip, and a third slot adjacent the end of the feed strip and spaced from the first and second slots. | 10-23-2008 |
20080272973 | DUAL BAND SLOT ARRAY ANTENNA ABOVE GROUND PLANE - A multiple frequency directional antenna is provided. The antenna includes a radiating array aligned over a ground plane. The radiating array has at least two first elongated slots and two second elongated slots. The slots have different lengths to provide different operating frequencies. On the radiating array opposite the slots is a microstrip impedance matching and diplexing feed network. Radio frequency power is supplied to the antenna via the feed network. | 11-06-2008 |
20080272974 | Multiband planar antenna and electrical apparatus using the same - A multi-band planar antenna including a metal plate, a first radiation portion, a second radiation portion, and a grounding portion is provided. The plate includes a first and a second edge. The first radiation portion is configured on the upper of the plate by a first slot, and the first slot extends to the inner of the plate from the first edge. The second radiation portion is configured on the upper side of the plate adjacent to the second edge by a second slot and a third slot adjacent to the first radiation portion. The second slot extends to the inner of the metal plate from the second edge. The third slot is formed between the first and the second slot. The grounding portion is formed on the lower of the metal plate. The first and the second radiation portion transmit and receive the low-band and high-band of RF signal respectively. | 11-06-2008 |
20080303732 | Smart Antenna with Adjustable Radiation Pattern - A smart antenna with an adjustable radiation pattern is described. A plurality of slot antennas are formed at a metal layer which is grounded, wherein openings of the slot antennas point to different directions. One surface of an insulated layer is covered by the metal layer. A coaxial feeding structure is provided through the insulated layer. A plurality of microstrip lines are formed at the other surface of the insulated layer and can feed the radio frequency signals to the slot antennas, respectively. Pluralities of switches are connected to each microstrip line and the coaxial feeding structure. A plurality of bias circuits are electrically connected to each switch, respectively, to control the status of the switch and adjust the operation statuses of the slot antennas individually to form an adjustable radiation pattern. | 12-11-2008 |
20080303733 | MULTIPLE-INPUT-MULTIPLE-OUTPUT WIRELESS COMMUNICATIONS CUBE ANTENNAS - Compact 24-port and 36-port multiple-input-multiple-output (MIMO) antenna designs and methods of construction based on a cube-like structure are provided. The antennas can be implemented with slot antennas distributed on the edges and faces of cubes. According to various embodiments of the disclosed subject matter, both spatial and polarization diversity can be achieved and average mutual couplings among the ports better than −20 dB can be achieved providing good channel capacity in MIMO applications. The disclosed details enable various refinements and modifications according to antenna and system design considerations. | 12-11-2008 |
20090002250 | DIFFERENTIALLY-FED VARIABLE DIRECTIVITY SLOT ANTENNA - With a differential feed line | 01-01-2009 |
20090009417 | POLARIZATION SWITCHING/VARIABLE DIRECTIVITY ANTENNA - A polarization switching/variable directivity antenna according to the present invention includes a ground conductor plate | 01-08-2009 |
20090058746 | EVANESCENT WAVE-COUPLED FREQUENCY SELECTIVE SURFACE - Multi-layer frequency selective panel includes a group of frequency selective surfaces arranged in a stack. A first frequency selective surface includes a first group of slot elements, and a second frequency selective surface includes a second group of slot elements. The first frequency selective surface and the second frequency selective surface are formed of a conductive metal layer. The first frequency selective surface and the second frequency selective surface are positioned a predetermined distance apart in parallel planes. The second frequency selective surface is disposed in an evanescent field region of the first frequency selective surface. | 03-05-2009 |
20090073066 | Grid Antenna - An antenna comprising a layer of conductor having a plurality of non-conductive slits disposed therein, each slit comprising a longitudinal dimension greater than a transverse direction, a feed line disposed beneath the layer of conductor to couple signal energy between the feed line and the slits, wherein the feed line crosses each slit in the transverse direction at least once, and a dielectric layer separating the layer of conductor from the feed line. | 03-19-2009 |
20090073067 | ANTENNA WITH ONE OR MORE HOLES - A new type of multihole antenna which is mainly suitable for mobile communications or in general to any other application where the integration of telecom systems or applications in a single antenna is important. The antenna includes a radiating element which at least includes one hole. By means of this configuration, the antenna provides a broadband and multiband performance, and hence it features a similar behaviour through different frequency bands. Also, the antenna features a smaller size with respect to other prior art antennas operating at the same frequency. | 03-19-2009 |
20090102734 | Antennas - This invention relates to a radiating element | 04-23-2009 |
20090109109 | HIGH FREQUENCY COMUNICATION DEVICE ON MULTILAYERED SUBSTRATE - A communication device ( | 04-30-2009 |
20090121953 | Transmitting/Receiving Antenna with Radiation Diversity - The present invention relates to a transmission/reception antenna with diversity of radiation comprising on a substrate at least a first and a second radiating elements connected by a network of feeder lines to a transmission/reception circuit of electromagnetic signals, wherein the network is constituted by a first feeder line connected to a first radiating element and by a set of two second feeder lines each connected by means of a switching element to the second radiating element in such a manner as to supply the two radiating elements in phase or in phase opposition, the set of the two second feeder lines being connected to the first feeder line by a third feeder line, the first and third feeder lines being connected by a feeder line common to the transmission/reception circuit of electromagnetic signals. | 05-14-2009 |
20090128435 | SLOT-COUPLED MICROSTRIP ANTENNA - A slot-coupled microstrip antenna includes a first substrate, a second substrate, and a support base. The first substrate having a first surface and a second surface, in which a ground surface that is formed on the first surface, and a plurality of slots are formed on the ground surface. A feeding network is formed on the second surface. A plurality of antenna corresponding to the slots are formed on the second substrate disposed above the first surface. The support base having two fillisters at two side of the support base. The design of slot structure often has adverse influence on cross polarization and a front-to-back ratio of antenna radiation. The support base having two fillisters of the slot-coupled microstrip antenna can effectively inhibit the influence on the cross polarization and raise the front-to-back ratio from the slots. | 05-21-2009 |
20090146897 | MICROWAVE DEMULSIFICATION OF HYDROCARBON EMULSION - Recovery of hydrocarbons, such as petroleum products, from a liquid or solid substrate is facilitated by the use of microwave energy to energize and separate molecular bonds between the hydrocarbons and the substrate. A radio frequency (RF) applicator delivers microwave energy to a treatment volume containing an emulsion of a hydrocarbon and a substrate. Delivering the microwave energy to the emulsion facilitates separation of the hydrocarbon and substrate molecules into layers. Hydrocarbons and other products can then be recovered from their respective layers. The treatment volume may be located either above or below ground. The RF applicator may include an antenna body with slots formed substantially parallel to one another in a substantially horizontal orientation. The RF applicator efficiently delivers microwave energy into the treatment volume. Substantially all of the power supplied to the RF applicator is radiated, with very little power reflected internally within the RF applicator. | 06-11-2009 |
20090153425 | Dual-Band Antenna Front-End System - The present invention relates to a multiple-port dual-band antenna system and the associated interface formed by DPDT or SPDT switches, that can be integrated on one and the same multi-layer structure. | 06-18-2009 |
20090195469 | ANTENNA SYSTEM AND ANTENNA THEREOF - An antenna system and an antenna thereof are provided. The antenna system comprises an antenna array including a plurality of antennas and at least one plate. The at least one plate is used for isolating two neighbor ones of the antennas. Each of the antennas comprises a first surface and a second surface. The first surface has a metal area and a slot area. The metal area is coated by a metal material, while the slot area consists of three slots. Each of the slots comprises a first area and a second area. The first areas are connected to each other, and each of the second areas extends to different directions individually. The second surface is coated by a metal line as a signal feed end. The metal line terminates at an opposite position of a signal feed slot, which is one of the three slots. | 08-06-2009 |
20090231225 | Wireless antenna array system architecture and methods to achieve 3D beam coverage - Embodiments of wireless antenna array systems to achieve three-dimensional beam coverage are described herein. Other embodiments may be described and claimed. | 09-17-2009 |
20090231226 | Dual band active array antenna - An exemplary embodiment of a dual band antenna array includes a folded thin circuit board structure with a thin dielectric layer and a conductor layer pattern formed on a first surface of the dielectric layer, the circuit board structure folded in a plurality of folds to form a pleated structure. A first array of radiator structures on the first surface is configured for operation in a first frequency band in a first polarization sense. A second array of radiator structures is configured for operation in a second frequency band in a second polarization sense. A conductor trace pattern is formed on the folded circuit board to carry control signals, DC power and RF signals. Active RF circuit devices are attached to the folded circuit board in signal communication with the conductor trace pattern. | 09-17-2009 |
20090273533 | High Gain Steerable Phased-Array Antenna with Selectable Characteristics - A high gain, phased array antenna includes a conducting sheet having a number of one or more slots defined therein. For each slot, an electrical microstrip feed line is electronically coupled with a corresponding slot to form a magnetically-coupled LC resonance element. A main feed line couples with the one or more microstrip feed lines. A specific azimuth pattern, antenna frequency, and/or beam direction is/are selectable in accordance with specific structural or electrical characteristics of the antenna. | 11-05-2009 |
20090303146 | SLOT ANTENNA - A slot antenna is located on a substrate and includes a grounding portion, a radiating portion, and a feeding portion. The grounding portion is positioned on the substrate. The radiating portion is symmetrically octagonal-shaped and defines four trapezoidal-shaped slots on opposite sides. The radiating portion is parallel to the grounding portion. The feeding portion electrically connects the radiating portion to the grounding portion for feeding electromagnetic signals to the slot antenna. | 12-10-2009 |
20090322636 | NOTCH ANTENNA HAVING A LOW PROFILE STRIPLINE FEED - Described are a notch antenna and an array antenna based on a low profile stripline feed. The notch antenna includes a planar dielectric substrate having upper and lower surfaces. Each surface has a conductive layer with an opening therein. A notch antenna element is disposed on the conductive layer of the upper surface at the opening. A stripline embedded in the planar dielectric substrate extends under the notch antenna element. The stripline is adapted to couple an RF signal between the stripline and the notch antenna element. A conductive via is electrically coupled to the stripline and extends from the stripline to the opening in the conductive layer on the lower surface so that the RF signal is accessible at the lower surface. | 12-31-2009 |
20090322637 | WIDE BAND LONG SLOT ARRAY ANTENNA USING SIMPLE BALUN-LESS FEED ELEMENTS - In one embodiment, a wide bandwidth, reduced depth transmit/receive antenna array includes unit cells having continuous slots, a transceiver, unbalanced feeds, impedance transformers, and exciters. The continuous slots are formed in a conductive antenna plane, and the transceiver generates and/or receives electrical signals. The unbalanced feeds may be electrically connected between the transceiver and impedance transformers which match the impedance between feed lines and the exciter. They may be located in a plane perpendicular to the direction of propagation of the radiation, and also may be arranged between the conductive antenna plane and a backplane. The exciter spans a continuous slot, and emits and/or receives radiation from the slot. The antenna array is capable of operating without a radome or balun. | 12-31-2009 |
20090322638 | MULTIBAND ANTENNA - A multiband antenna includes a conductive sheet, a feeding point, and a grounding point. The conductive sheet defines a first slot, a second slot, a third slot, a fourth slot, a fifth slot, a sixth slot, and a seventh slot thereon. The second slot and the third slot extend from a same short side of the first slot and are parallel to each other. The fourth slot, the fifth slot, the sixth slot, and the seventh slot extend perpendicularly from a short side of the third slot away from the first slot in sequence. The feeding point is formed on the conductive sheet at a long side of the first slot away from the third slot. The grounding point is formed on the conductive sheet at a margin of the slots different from the location of the feeding point. | 12-31-2009 |
20090322639 | ANTENNA APPARATUS - An antenna apparatus including a metal layer, a first planar antenna, a second planar antenna and a conducting wire is provided. The first planar antenna has a first ground terminal electrically connected to the metal layer. The second planar antenna has a second ground terminal electrically connected to the metal layer. The conducting wire is connected between the first planar antenna and the second planar antenna. In the whole operation, electromagnetic signals transmitted by the first planar antenna and the second planar antenna are in the same frequency band, and the coupling effect of the first planar antenna and the second planar antenna is reduced along with the formation of a current loop of the conducting wire. | 12-31-2009 |
20100039342 | INTEGRATED ULTRA THIN SCALABLE 94 GHz SI POWER SOURCE - In one embodiment, a slot array antenna comprising a quartz layer and a silicon layer, wherein the quartz and silicon layers are matched to suppress microwave modes, and a metal layer adjacent to the silicon layer comprising offset cuts. | 02-18-2010 |
20100045557 | ANTENNA APPARATUS - An antenna apparatus that may be adapted to various environments. The antenna apparatus includes a radiation unit to transmit and receive in a 360° radius including a plurality of radiators, each radiator configured to radiate a main emission pattern in different direction; and a switch unit configured to selectively operate each of the plurality of radiators. | 02-25-2010 |
20100053012 | Antenna apparatus for printed circuit board having auxiliary antenna - An antenna apparatus for a printed circuit board including an auxiliary antenna which includes a printed circuit board and mounting components. An antenna pattern is formed on the printed circuit board, and the antenna apparatus includes a first auxiliary antenna unit formed on an upper surface of the printed circuit board; and a second auxiliary antenna unit provided at a location on a lower surface of the printed circuit board that corresponds to location of the first auxiliary antenna unit on the upper surface of the printed circuit board. Efficiency by the antenna apparatus according to the present invention can be increased by approximately 17%. | 03-04-2010 |
20100060535 | PLANAR ANTENNA FOR MOBILE SATELLITE APPLICATIONS - The invention relates to a microstrip patch antenna for mobile satellite communications comprising a first electrically conducting ground plane having at least one opening, at least one patch radiating element, at least one first dielectric layer, disposed between the first electrically conducting ground plane and the patch radiating element and more particularly between the at least one opening and the patch radiating element, at least one feed line for providing signal energy in a contactless manner to or from the patch radiating element through the opening and a second dielectric layer disposed between the feed line and the first electrically conducting ground plane wherein the antenna further comprises a second ground plane and a third dielectric layer disposed between the second ground plane and the feed line. | 03-11-2010 |
20100066622 | MULTI-SECTOR ANTENNA - The present invention relates to a multi-sector antenna comprising N (N>1) planar antennas each constituted of a longitudinal radiation slot etched on a first substrate provided with a ground plane and supplied by an excitation line. The N first substrates are fixed on a second common substrate so that the radiation axis of each antenna is parallel to said second substrate, the N first substrates being interconnected around an axis perpendicular to the second substrate. The invention can be applied to high definition wireless cameras. | 03-18-2010 |
20100090919 | ANTENNA - A plate-shaped radiating element of a shape having at least three planes is formed by bending a metal plate having a substantially rectangular shape. A first slit is provided from a lower edge of the plate-shaped radiating element up to a portion in the vicinity of an upper edge of the plate-shaped radiating element while passing through a center point of the plate-shaped radiating element, and forms plate-shaped dipole elements on both sides thereof. A second slit is provided parallel to the upper edge of the plate-shaped radiating element and forms a folded element on an upper side thereof. Feeding points are provided on both sides of the first slit at the lower edge of the plate-shaped radiating element. | 04-15-2010 |
20100097282 | MULTI-BAND COMPACT ANTENNA SYSTEM FOR HANDHELD DEVICES - A multi-band antenna and a handheld device with multi-band antenna are provided. The multi-band antenna includes a radiating layer having a first radiating antenna pattern for a plurality of first bands, a second radiating antenna pattern for a plurality of a second bands, and a third radiating antenna pattern for a third band; a ground layer; a dielectric layer sandwiched between the ground layer and the radiating layer. The handheld device includes a multi-band antenna board having a plurality of antenna patterns having a GPS radiating antenna pattern, a low bands radiating antenna pattern and a high bands radiating antenna pattern, the low bands radiating antenna pattern or the high bands radiating antenna pattern being formed between the other radiating antenna patterns. | 04-22-2010 |
20100103063 | ANTENNA - An antenna is provided. The antenna has a ground element, a radiator and a conductive element. The radiator has a body, wherein the body has a first edge, a second edge, a third edge and a fourth edge, and the first edge is parallel to the third edge, a length of the first edge is shorter than a length of the third edge, the first edge is close to the ground element, the second edge connects the first edge and the third edge, a fourth edge connects the first edge and the third edge, and a first slot is formed on the radiator. The second edge and the fourth edge extend separately from the first edge to the third edge. The conductive element connects the ground element and the radiator. | 04-29-2010 |
20100109962 | Circularly polarized antenna and an electronic device having the circularly polarized antenna - A circularly polarized antenna for wireless signal transmission of an electronic device is disclosed. The circularly polarized antenna includes a base board, a grounding layer, a dielectric body, and a radiating patch metal layer. The grounding layer is disposed on the base board. The dielectric body is disposed on the grounding layer. The radiating patch metal layer is disposed on the dielectric body. The radiating patch metal layer includes a first slot and a second slot disposed on opposite sides of the radiating patch metal layer separately and disposed along a first extension line substantially, wherein the first extension line passes through a center of the grounding layer and is parallel to a side of the grounding layer substantially. | 05-06-2010 |
20100134369 | HIGH GAIN STEERABLE PHASED-ARRAY ANTENNA - A high gain, phased array antenna includes a conducting sheet having a number of one or more slots defined therein. For each slot, an electrical microstrip feed line is electronically coupled with a corresponding slot to form a magnetically-coupled LC resonance element. A main feed line couples with the one or more microstrip feed lines. At least one slot and/or microstrip feed line includes at least one segment with greater width than other segments. | 06-03-2010 |
20100201592 | SLOTTED ANTENNA INCLUDING AN ARTIFICIAL DIELECTRIC SUBSTRATE WITH EMBEDDED PERIODIC CONDUCTING RINGS, FOR ACHIEVING AN IDEALLY-UNIFORM, HEMISPHERICAL RADIATION/RECEPTION WHEN USED AS A SINGLE ANTENNA ELEMENT, OR FOR AZIMUTH(phi)-INDEPENDENT IMPEDANCE-MATCHED ELECTRONIC BEAM SCANNING WHEN USED AS A LARGE ANTENNA ARRAY - A new antenna includes a rectangular slot element provided on a conducting plate and covered by a special substrate portion. The substrate portion includes stacked layers of capacitively-loaded conducting ring elements, arranged in the form of an (e.g., periodic) array in each layer. The slot antenna element is excited by a parallel-plate waveguide, which is fabricated below the conducting plate on which the slot antenna is made. The antenna design, when used in the form of a single antenna element, would produce ideally uniform power radiation over all directions in the upper hemi-spherical space. A large periodic array of such ideally isotropic antenna elements permits electronic beam scanning and has a performance of power coupling from signal sources at the antenna inputs which is independent of the azimuth (Φ) scanning direction, dependent only on one spatial variable (elevation angle, θ) of scanning. Such performance from an antenna array normally can not be achieved using conventional designs. Such an antenna array may be used in communications and radars. | 08-12-2010 |
20100207835 | SLOT ANTENNA - To make an antenna wideband under thin state. The slot antenna includes an antenna element having an aperture type slot, a reflector disposed by opposing to the antenna element, a feeding device which is electrically and physically connected to the antenna element and the reflector, a short-circuiting device which electrically short-circuits the antenna element and the reflector, and a reducing device which reduces the reactance component of the antenna. Since the reducing device for reducing the reactance component of the antenna is provided, the reactance component of the antenna can be reduced even if the antenna is formed thin and the antenna can be made wideband regardless of its thinness. | 08-19-2010 |
20100225553 | Compact antenna system - The present invention relates to an antenna system comprising on a substrate, at least a first and a second printed radiating elements, each supplied by a feed line, with, between the two radiating elements, at least one transmission line comprising a first extremity and a second extremity. The first and the second extremities of the transmission line are respectively coupled to the first and the second radiating elements according to a coupling function with a ratio 1:b, b>1 and a phase φ, linked to the physical difference between the radiating elements, the length of the transmission line bringing a phase difference θ such that θ compensates for φ. | 09-09-2010 |
20100238084 | Dual-band Planar Micro-Strip Antenna - To meet the requirements including dual-band, a high gain, and a broadside radiation formation, a dual band planar micro-strip antenna utilizing antenna array is provided. One array element includes a rectangle-shaped micro-strip antenna and an arrow-shaped micro-strip antenna. A first resonant frequency is determined by a length of the rectangle-shaped micro-strip antenna. Slots are dug for satisfying a second resonance frequency. Curved surfaces of the arrow-shaped micro-strip antenna designed according to an ellipse equation so that a frequency resonance is reached under both the first resonant frequency and a second resonant frequency, and a broadside radiation formation is thus generated. A T-shaped jointer distributes power between antenna elements according to the output impedances of the antenna elements. An L-shaped band-stop filter located on the T-shaped jointer is utilized to suppress frequency resonance resulted from multiples of the first resonant frequency. | 09-23-2010 |
20100289714 | WIDEBAND HIGH GAIN 3G or 4G ANTENNA - A broadband antenna element for RF transmission and reception over cellular frequencies. The antenna element is formed of conductive material on a substrate surface of conductive material in the form of a pair of half portions extending in opposite directions to distal tips defining the widest distance of a mouth of a cavity. The mouth converges to reduce in cross-section to a narrowest point at a plurality of different flare angles defined by the edges of the two half portions in between the pair of half portions forming the element. The resulting antenna element radiates and receives a wide band cellular frequencies enabling a single element to serve different providers operating on different frequency bands in the cellular spectrum between 680 MHz to 1900 MHz. | 11-18-2010 |
20100315304 | SLOT ANTENNA AND SLOT ANTENNA ARRAY - A slot antenna disposed on a substrate including a first surface and an opposite second surface includes a feeding portion, a first radiation portion, a second radiation portion, and a third radiation portion. The feeding portion is disposed on the first surface, and operable to feed electromagnetic signals. The first radiation portion electronically connected to the feeding portion is circular-shaped and disposed on the first surface. The second radiating portion is disposed on the second surface and defines a slot. The second radiation portion couples the first radiation portion to radiate the electromagnetic signals. The third radiation portion is ring-shaped and disposed on the second surface. The third radiation portion couples the first radiation portion to radiate the electromagnetic signals. The first radiation portion, the second radiation portion, and the third radiation portion respectively radiate electromagnetic signals with different frequencies. The second radiation portion is grounded. | 12-16-2010 |
20110025571 | Circularly Polarized Microstrip Antennas - The present invention in one aspect relates to a circularly polarized antenna having a conductive ground layer, a conductive patch and a dielectric substrate formed between the conductive ground layer and the conductive patch. The conductive patch formed in a square shape with four equal sides and has four square slots with each formed in the central portion of each side, and two rectangular slots orthogonally formed in the central area of the square such that one rectangular slot is aligned with one diagonal of the square, the other rectangular slot is aligned with the other diagonal of the square, and the junction of the two rectangular slots is coincident with the geometrical center of the square. | 02-03-2011 |
20110080329 | Thz Antenna Array, System and Method for Producing a THz Antenna Array - A THz antenna array has a plurality of THz antennae, a THz antenna having a photoconductive region and a first electrode and a second electrode which are arranged interspaced from each other via a spacer region that extends laterally across at least a part of the photoconductive region. In order to simplify the structure and facilitate its production, a lateral region between adjacent THz antennae of the array is not photoconductive. It is especially free from photoconductive material. | 04-07-2011 |
20110090129 | Circularly Polarised Array Antenna - A circularly polarised array antenna ( | 04-21-2011 |
20110090130 | RFID READER ANTENNA AND RFID SHELF HAVING THE SAME - An RFID reader antenna including: a printed circuit board (PCB) formed as a dielectric substance; a plurality of slot groups, each having a plurality of slots, disposed on a first face of the PCB; a ground face disposed on areas, excluding the plurality of slot groups, of the first face of the PCB; and a feeder formed as a microstrip line with an open end on a second face of the PCB to feed the plurality of slot groups. Because the slots periodically formed on the ground face are fed in series by using the single microstrip line, the RFID reader antenna can reliably recognize a larger area with a simple structure. In particular, the RFID reader antenna can be useful for the bookstands for book management or smart shelves for displaying articles or goods including clothing goods in superstores or hypermarkets through the use of the ILT RFID application. | 04-21-2011 |
20110134007 | FLAT ANTENNA FOR MOBILE USE - A surface antenna for mobile use has a flat fiberglass base having a thickness of between 7.62 mm (0.300 in) and 12.70 mm (0.50 in), and at least one radiator on the base. The base is coated with a metal on its face lying the face carrying the antenna radiator. This coating forms a ground plane for the surface antenna, so that it can easily be used at the installation site in or on the mobile object. | 06-09-2011 |
20110148725 | METHODS AND APPARATUS FOR COINCIDENT PHASE CENTER BROADBAND RADIATOR - Methods and apparatus for a coincident phase center dual polarized slotline radiator. In one embodiment, a radiator includes, for each of two polarizations in a unit cell: first and second fins to provide an air transition for a signal, the radiator including a throat region between the first and second fins, a microstrip path transitioning to a slotline feed, a slotline split forming a part of the slotline feed to provide signal power division and 180 degree phase shift for rejoinder in the throat of the radiator to launch the signal into free space. In another embodiment, a four port radiator is provided. | 06-23-2011 |
20110148726 | DUAL BAND ANTENNA - A dual band antenna includes a grounding portion, a connection portion, a radiating portion, a radiating groove and a feeding portion. The connection portion has a top side and a bottom side disposed relatively, and has a first edge side and a second edge side connected to the top side and the bottom side. The bottom side of the connecting portion is connected with the grounding portion. The radiation portion is protruded from the first edge side of the connecting portion and neighboring to the top side of the connecting portion. The radiation groove is disposed on the inside of the connecting portion and neighboring to the second edge side and bottom side of the connecting portion, and has a opening located on the first edge side of the connecting portion. The feeding portion is formed on the connecting portion and neighboring to the opening of the radiation groove. The radiation portion is operated at a first band width and the radiation groove is operated at a second band width to make the dual band antenna of this invention work in two different bands. | 06-23-2011 |
20110156976 | ARRAY ANTENNA - An array antenna with high suppression of cross-polarization has rectangular conductor sections, located successively side by side in a first plane, mutually separated by slots of constant width. A backing reflector transverse to said first plane. Feed structures extend through the backing reflector, the feed structures comprising pairs of parallel feed conductors, each pair comprising conductors coupled to the rectangular conductor sections on opposite sides of a respective one of the slots. | 06-30-2011 |
20110187619 | SYSTEM OF TWO ANTENNAS ON A SUPPORT - The invention concerns a system of antennas on the same support. Each antenna is connected to a first port for the emission/reception in a first frequency band, and to a second port for the emission/reception in a second frequency band. The invention consists in a specific dimensioning of the support, such that the difference of the perimetric lengths separating the median points is a function of the half wavelength λ/2 modulo k λ, k positive integer, where λ is the wavelength corresponding to a working frequency fr. | 08-04-2011 |
20110193759 | Antenna Device - An antenna device includes an antenna radiation portion, a reflection portion and a connecting portion. The reflection portion and the antenna radiation portion are installed in parallel with each other at both ends of the connecting portion respectively, such that the connecting portion is connected to the antenna radiation portion and the reflection portion, and the antenna radiation portion and the reflection portion are formed by integrally bending a metal plate to reduce interferences caused by other external factors, so as to achieve the expected directivity, lower the production cost, and shorten the manufacturing time. | 08-11-2011 |
20110215979 | Circularly polarized omnidirectional antennas and methods - An antenna, suitable for battlefield identification use, employs a multifunctional design. A closed-end coaxial line structure with center conductor has slanted slot radiators provided in its outer conductor. The slot radiators excite a pattern between upper and lower disks of a radial waveguide radiator configuration so that horizontal and vertical components reach the disk circumference with a 90 degree phase differential to provide an omnidirectional antenna pattern of circular polarization. Antennas and methods are described. | 09-08-2011 |
20110215980 | ANTENNA FOR PORTABLE DEVICE - The disclosure provides an antenna used for a portable device. The antenna includes a feed part, a ground part, a bent part, a main body, and an extended part. The main body connects with the feed part and the ground part. The main body further includes several gaps and slots so that the main body is divided into several radiating areas by the gaps and slots. The bent part is extended from the ground part. The extended part perpendicularly connects with the main body. | 09-08-2011 |
20110221644 | DUAL-PATCH ANTENNA AND ARRAY - A dual-patch antenna includes a ground plane, a first patch plate parallel to and separated from the ground plane by a separation distance, and a second patch plate separated from the ground plane by the separation distance. The first and second patch plates are coplanar and separated by a radiating slot. An excitation probe isolatedly passes through the ground plane and connects to the first patch plate. A first wall connects an edge of the first patch plate to the ground plane. The first wall is located approximately ¼ wavelength of a mid-band operating frequency from the radiating slot. A second wall connects an edge of the second patch plate to the ground plane. The second wall is located approximately ¼ wavelength of the mid-band operating frequency from the radiating slot. The dual-patch antennas may be organized in an array. | 09-15-2011 |
20110221645 | ANTENNA ASSEMBLIES AND METHODS OF MANUFACTURE THEREOF - A method of manufacturing antennas including forming at least one conductive antenna array pattern having an antenna feed network on at least a first relatively flexible substrate and adhering the at least one flexible substrate to at least one first surface of at least one relatively rigid substrate. | 09-15-2011 |
20110267248 | END-LOADED TOPOLOGY FOR D-PLANE POLARIZATION IMPROVEMENT - The embodiments described herein are directed to providing a notched antenna element for improving polarization control without sacrificing gain, bandwidth, scan volume, recurring cost, or manufacturability. The notched antenna element includes a base portion comprising a plurality of contiguous first cross-sectional notched antenna elements, each of the plurality of first cross-sectional notched antenna elements configured in an end-loaded structure for increasing polarization stability; and an upper portion coupled to the base portion, the upper portion comprising a plurality of contiguous second cross-sectional notch antenna elements. | 11-03-2011 |
20110273351 | WIDEBAND CAVITY-BACKED SLOT ANTENNA - A wideband cavity-backed slot antenna includes an enclosure having a slot, a balun located proximate the slot, a feed extending through the enclosure to the balun, and a plurality of coupled lines proximate the balun and distal to a location at which the balun is coupled to the feed. | 11-10-2011 |
20110291901 | SLOT ANTENNA - Technology is described for a slot antenna. The slot antenna can include a substrate having a metal layer on a first side of the substrate. A feed line can be located on a second side of the substrate. A first polygon shaped slot can be formed in the metal layer of a first side of the substrate. A second polygon shaped slot can also be formed in the metal layer of the first side of the substrate. The second polygon shaped slot can be recessed within a perimeter of the first polygon shaped slot and the second polygon shaped slot and first polygon shaped slot share a common side. Examples of the first and second polygon shapes may include square or diamond shapes. | 12-01-2011 |
20110291902 | WIDEBAND L-SHAPED CIRCULAR POLARIZED MONOPOLE SLOT ANTENNA - A wideband circularly polarized L-shaped monopole slot antenna has a single C-shaped feed. The measured results demonstrate that the antenna has 23% of circular polarization bandwidth (Axial Ratio<3 dB and Return Loss<−10 dB). The monopole slot antenna occupies a half area on the corner of circuit board compared to half-wavelength slot antenna that requires the area at the center of the board. This feature is attractive for compact wireless devices operate at low frequencies in which circuit board floor planning and signal routing are major concerns. The antenna is extremely low cost and does not require any truncation corner, reflector surface and via connection which increase the fabrication cost. | 12-01-2011 |
20110298681 | SLOT ANTENNA - A slot antenna located on a substrate with a first surface and a second surface opposite to the first surface includes a feeding portion and a radiating portion. The feeding portion is located on the first surface of the substrate to feed electromagnetic signals. The radiating portion is located on the second surface of the substrate and defines a sector-shaped slot, a first rectangle-shaped slot, a second rectangle-shaped slot, and a third rectangle-shaped slot, wherein the sector-shaped slot is defined by a first semidiameter, a second semidiameter, and an arc connected one by one. | 12-08-2011 |
20120075154 | MICROSTRIP-FED SLOT ANTENNA - A microstrip-fed antenna is disclosed having a first dielectric substrate and a second dielectric substrate. The second dielectric substrate is disposed on the first dielectric substrate and the first dielectric substrate has a relative permittivity greater than or equal to the second dielectric substrate. The antenna further includes a microstrip line formed in the second dielectric substrate and a metal layer formed in the second dielectric substrate. The metal layer is positioned between the microstrip line and the first dielectric substrate and includes a slot. | 03-29-2012 |
20120139805 | ANTENNA STRUCTURE AND MULTI-BEAM ANTENNA ARRAY USING THE SAME - An antenna structure comprises a substrate, a first antenna unit and a second antenna unit. The substrate comprises a first surface and a second surface opposing the first surface. The first antenna unit is disposed on the first surface, and comprises at least a first slot with a wider inside and narrower outside at the edge of the first antenna unit. The second antenna unit is disposed on the second surface, and is connected to the first antenna unit through a hole in the substrate. The radius of the at least one first slot is one-fourth the wavelength of the central frequency of the antenna structure. | 06-07-2012 |
20120139806 | IFS BEAMFORMING ANTENNA FOR IEEE 802.11n MIMO APPLICATIONS - An antenna that is capable of accommodating both IEEE 802.11b/g traffic and IEEE 802.11n traffic is provided. The antenna includes a ground plane member, a plurality of inverted F slot antenna elements disposed at equidistant positions along a periphery of the ground plane member, and a plurality of slot elements disposed at equidistant positions along the periphery of the ground plane member is provided. First and second slot elements can be disposed on respective first and second sides of each inverted F slot antenna element, and each inverted F slot antenna element can operate in a first frequency band and in a second frequency band. | 06-07-2012 |
20120146867 | Compact System of Multi-Beam Antennas - The present invention relates to a system of multi-beam antennas comprising M radiating sources and P networks of N radiating elements, P being greater than 1 and N being an even whole number, the network elements being connected two by two via transmission lines of the same electrical length. In addition, the P networks are co-located at the centre of each network, the M radiating sources are each positioned at a distance Li from said centre, the distance Li being strictly less than the distance of the field called the far field and i varying from 1 to M. | 06-14-2012 |
20120162040 | MOBILE WIRELESS TERMINAL - A mobile wireless terminal is provided which has an antenna constitution that does not have deterioration on a wireless function regardless of when a clamshell type chassis is opened or closed. In such a mobile wireless terminal, a first antenna element is set on a side of a inside surface of a display chassis, and a second antenna element is set on a side of an external surface. A first/second conductive board is arranged so as to face the first/second antenna element. When a display chassis and a main body chassis are in an opened state, both the first and second antennas work which are arranged in the display chassis. When a display chassis and a main body chassis are in a closed state, the second conductive board affects on the second antenna element so as to avoid effects of a metal of the main body chassis, and the second antenna element works without being affected from the metal of the main body chassis. | 06-28-2012 |
20120169560 | OMNIDIRECTIONAL MULTI-BAND ANTENNAS - Disclosed herein are various exemplary embodiments of omnidirectional multi-band antennas. In an exemplary embodiment, an antenna includes upper and lower portions. The upper portion includes one or more radiating elements, one or more tapering features for impedance matching, and one or more slots configured to enable multi-band operation of the antenna. The lower portion includes one or more radiating elements and one or more slots. | 07-05-2012 |
20120200469 | STACKED ANTENNA ASSEMBLY WITH REMOVABLY ENGAGEABLE COMPONENTS - An omnidirectional RF radiator element formed upon a surface of a planar dielectric substrate. The element features a plurality of cavities narrowing in cross-section and formed upon a surface of said planar substrate which narrow from a widest point to a narrowest point. Feed lines communicate with each cavity for transmission and reception of RF therethrough. Each radiator element is engageable with other elements in a stacked configuration using connectors engaged to the feed lines and configured for cooperative engagement with other connectors. | 08-09-2012 |
20120274527 | ANTENNA ASSEMBLY UTILIZING METAL-DIELECTRIC STRUCTURES - An antenna assembly for a wireless communication device includes a substrate of dielectric material that has opposing first and second surfaces. A ground plane formed by a layer of electrically conductive material on the first surface. An antenna with a physical length is disposed on the substrate. At least one metal-dielectric structure is disposed on the substrate. The metal-dielectric structures resonate so as to interact with the antenna and thereby alter the effective electrical length of the antenna. That interaction causes the antenna to function as though it had a greater physical length. In one embodiment, that interaction enables an antenna, that is shorter than one-fourth the wavelength of a radio frequency signal applied thereto, to function as through the physical length of the antenna was one-fourth that wavelength. | 11-01-2012 |
20120299789 | CIRCULARLY POLARIZED ANTENNA AND FEEDING NETWORK - An antenna for transmitting and/or receiving-electromagnetic waves has a flat ground plane, and an array of radiating and/or receiving elements. The radiating and/or receiving element comprises a planar conductor which is arranged in parallel to the ground plane. An L-shaped slot is arranged in the planar conductor. | 11-29-2012 |
20130009833 | Antennas For Electronic Devices With Conductive Housing - An electronic device may be provided with a conductive housing. The conductive housing may be formed from a metal. Slots may be formed in the housing. The slots may serve as an antenna and may be fed using an antenna feed structure within the electronic device housing. The electronic device may have a frame to which housing structures are attached and may have a stand or other support structure. The frame may be used to mount a display, to support housing walls, to support clutch barrel structures, etc. The slots may be formed in the frame or in a space between the frame and the housing walls. The slots or other antenna structures may also be formed in the stand. Multiple slots may be used together to support operations in two or more communications bands. There may be multiple dual slot antennas in the electronic device. | 01-10-2013 |
20130009834 | BROADBAND OMNIDIRECTIONAL ANTENNA - An improved broadband omnidirectional antenna is distinguished by the following features: the omnidirectional antenna is in the form of a dual-polarized antenna, the dual-polarized antenna comprises a horizontally polarized radiating element ( | 01-10-2013 |
20130038495 | Broad Band Antennas and Feed Methods - Two or more Vivaldi antennas, consisting of two plates each, each with the antenna's natural impedance of approximately 100 ohms, are placed in parallel to achieve a 50 ohm impedance in the case of two antennas or other impedances (100/n ohms) for more than two antennas. A single Vivaldi antenna plate (half Vivaldi antenna) over a ground plane can also be used to achieve a 50 ohm impedance, or two or more single plates over a ground plane to achieve other impedances. Unbalanced 50 ohm transmission lines, e.g. coaxial cables, can be used to directly feed, the dual Vivaldi (four plate) antenna in a center fed angled center departure, or more desirably, a center fed offset departure configuration. | 02-14-2013 |
20130038496 | COVERAGE ANTENNA APPARATUS WITH SELECTABLE HORIZONTAL AND VERTICAL POLARIZATION ELEMENTS - An antenna apparatus comprises selectable antenna elements including a plurality of dipoles and/or a plurality of slot antennas (“slot”). Each dipole and/or each slot provides gain with respect to isotropic. The dipoles may generate vertically polarized radiation and the slots may generate horizontally polarized radiation. Each antenna element may have one or more loading structures configured to decrease the footprint (i.e., the physical dimension) of the antenna element and minimize the size of the antenna apparatus. | 02-14-2013 |
20130044035 | Dual-Polarized Microstrip Antenna - A dual-polarized microstrip antenna includes: at least one metal radiating patch, i.e. a first metal radiating patch; at least one ground metal layer whereon excitation micro-slots are etched; at least one dielectric layer, i.e. a first dielectric layer it is preferred that the dielectric layer is a resonant dielectric layer such as a resonant dielectric layer of air or other layers of optimization resonant materials; at least one set of bipolar excitation microstrip lines; the dielectric layer is between the first metal radiating patch and the ground metal layer. The dual-polarized microstrip antenna of multi-layer radiation structure is designed in a relatively small volume, which effectively saves the cost of antenna installation and maintenance, and is widely applied in the fields of mobile communication and internet technology. | 02-21-2013 |
20130076582 | WIRELESS DEVICE AND MULTI-ANTENNA SYSTEM HAVING DUAL OPEN-SLOT RADIATORS - A multi-antenna system and wireless device comprising same are provided. The multi-antenna system comprises two open-slot antennas each coupled to its own resonant cavity. The two resonant cavities may be adjacent with common short circuit elements across their boundary. The short circuit elements may include apertures through which wires can be passed. The multi-antenna system may comprise two spaced-apart plates, each plate defining half of the first open-slot antenna, half of the second open-slot antenna, half of the first resonant cavity, and half of the second resonant cavity. The multi-antenna system can be fitted into a low-profile wireless device having a top face with a surface area about equal to or greater than that of the plates. A display such as a touch-screen may be fitted to the top face. The plate configuration may provide for a relatively large surface over which current can flow during antenna operation. | 03-28-2013 |
20130082890 | VARIABLE HEIGHT RADIATING APERTURE - Provided herein are devices, systems and techniques for establishing a variable height conformal antenna array having a planar backplane. More particularly, positioning of radiating elements can be made insensitive to variable ground height by selecting a suitable radiating element, such as a flared notch and arranging them to have a profile such that their outer extremities are positioned along a conformal, curved shape. Differences in radiator heights can be taken up by the addition of parallel vertical ground planes disposed between the radiating elements and the backplane. Adjacent vertical ground planes effectively form cutoff waveguide sections that naturally isolate the backplane from the radiating elements. The vertical ground planes edges effectively form a virtual curved ground for the radiating elements, following curvature of the array profile. Accordingly, heights of radiating elements are uniform with respect to the virtual ground, while being allowed to vary with respect to the backplane. | 04-04-2013 |
20130088400 | MONOPOLE SLOT ANTENNA FOR MULTIPLE INPUT AND MULTIPLE OUTPUT - The present invention pertains to a monopole slot antenna for multiple input and multiple output comprising a substrate. An antenna module is disposed on the first surface of the substrate and includes a first antenna and a second antenna disposed symmetrically with each other. A first inner monopole slot and a first outer monopole slot are disposed on the first antenna. The first inner monopole slot is formed by connecting a first straight section with a plurality of first bended sections. The first outer monopole slot surrounds the outer periphery of the first inner monopole slot. The second antenna is disposed symmetrical to the first antenna. An isolation unit is defined between the first antenna and the second antenna and has a third straight section and a third bended section. Furthermore, two feeding units are defined on the second surface of the substrate. | 04-11-2013 |
20130093638 | MULTI-CHANNEL CABLING FOR RF SIGNAL DISTRIBUTION - A multi-channel RF signal cable comprises a metallic material 101 | 04-18-2013 |
20130099988 | ANTENNA - A planar Vivaldi antenna array, and method of forming such an array, the array comprising: a plurality of slots at an end of the antenna array, the slots extending through the whole thickness of the planar structure of the antenna array; and a plurality of grooves extending from the slots; wherein: the grooves do not extend through the whole thickness of the planar structure of the antenna array; and the cross-sectional shape of the grooves is complementary to the cross-sectional shape of the slots. | 04-25-2013 |
20130120203 | Antenna Unit, Antenna Array and Antenna Module Used in a Portable Device - An antenna unit used in a portable device is disclosed, comprising a body which has a feeding end, a radiant end, and two outer edges. The feeding end is configured to receive an input signal. One outer edge has a plurality of first slots, and another outer edge has a plurality of second slots. Both the first slots and second slots are extend from outer to inner of the body. The number of the first slots is different from the number of the second slots for controlling the shape of radiant filed of the radiant end. | 05-16-2013 |
20130141296 | CAVITY BACKED CROSS-SLOT ANTENNA APPARATUS AND METHOD - An antenna apparatus and method includes an orthogonal slot antenna which overcomes the limitations associated with RF choke between the adjacent slots through various feed techniques. A cavity backed cross-slot antenna includes a horizontal slot antenna, a vertical slot antenna sharing a center portion with the horizontal slot antenna, a first feed for the horizontal slot antenna, and a second feed for the vertical slot antenna, the first feed and the second feed provided to the shared center portion. Another cavity backed cross-slot antenna includes a horizontal slot antenna, a vertical slot antenna, the horizontal slot antenna and the vertical slot antenna share a center portion therebetween, a first feed feeding both halves of the horizontal slot antenna, and a second feed feeding both halves of the vertical slot antenna. | 06-06-2013 |
20130141297 | MULTI-BAND ANTENNA - The invention provides a multi-band antenna comprising a planar substrate which in use is intended for vertical mounting, and has a bottom edge and a top edge. A conductor pattern is printed on one side of the substrate with three slots. A first slot is a U or J shape facing downwardly and a second is a U or J shape facing upwardly. A third slot extends in the vertical direction and is open at the top. A first antenna feed is coupled to a horizontal track of the second slot and a second antenna feed is coupled to the third slot. The three slots together provide multi-band performance in three bands. | 06-06-2013 |
20130141298 | PENTA-BAND INTERNAL ANTENNA AND MOBILE COMMUNICATION TERMINAL THEREOF - A penta-band internal antenna and a mobile communication terminal may include: a first high-frequency branch, a second high-frequency branch, and a low-frequency branch of an antenna radiating element, and a first slotted hole and a second slotted hole arranged on a printed circuit board. The first slotted hole may be arranged along a direction substantially perpendicular to the current flow direction of the printed circuit board. The open-circuit end of the low-frequency branch may be fitted into the first slotted hole and the open-circuit end of the second high-frequency branch may be fitted into the second slotted hole. | 06-06-2013 |
20130154890 | ANTENNA DEVICE - An antenna device is provided and includes a bottom, two monopole antennas, and a cover assembled with the bottom. A projection plane is defined perpendicular to the bottom. The two monopole antennas substantially symmetrically protrude from the bottom, and a gap is formed between the two monopole antennas. Projections of the two monopole antennas on the projection plane intersect with each other. Each of the two monopole antennas includes a first frequency receiving portion adjacent to the bottom, a second frequency receiving portion, and a connection portion located between the first frequency receiving portion and the second frequency receiving portion. A slot is formed through the connection portion to adjust a received frequency of the first or second frequency receiving portion. An accommodating space is formed between the cover and the bottom to accommodate the two monopole antennas. | 06-20-2013 |
20130169497 | COMMUNICATION DEVICE AND ANTENNA STRUCTURE THEREIN - A communication device includes an antenna structure, wherein the antenna structure includes a ground element and an antenna element. One edge of the ground element has a notch, and the notch is extended into the interior of the ground element to form a slot region. The slot region is substantially extended along the edge of the ground element. The antenna element includes a first radiating portion and a second radiating portion. The first radiating portion is disposed in the slot region and is excited to form at least a resonant mode in the first operating band of the antenna element. The second radiating portion is an open-slot antenna and is formed by the slot region. The second radiating portion is excited to form a resonant mode in the second operating band of the antenna element. | 07-04-2013 |
20130169498 | PACKAGING MATERIAL WITH T-SHAPED SLOT ANTENNA - The present invention is to provide a packaging material having a T-shaped slot antenna, which includes a surface material being a plastic film and having one surface coated with a metal layer, a bottom material being a plastic film and having one surface coated on the metal layer, and a communication device having two conductive sheets connected to either the surface or bottom material. The surface material, metal layer and bottom material are formed with a T-shaped slot for forming the T-shaped slot antenna, wherein the T-shaped slot includes a vertical groove having one end connected to central position of a horizontal groove and an opposite end extending toward a lateral edge of the metal layer. The corresponding lateral edges of the conductive sheets are spaced from each other and are connected with feed-in ends of a communication chip respectively for receiving or transmitting information via the T-shaped slot antenna. | 07-04-2013 |
20130187818 | ANTENNAS INTEGRATED IN SHIELD CAN ASSEMBLY - Antennas are integrated into shield cans by etching one or more slots from a body portion thereof. Multiple antennas can be grouped onto a single shield can to provide both cost and space saving features. Antenna feed and ground connections are positioned on the circuit board and connections to the antenna are made when the shield can connects to the circuit board assembly. | 07-25-2013 |
20130222197 | PLANAR ARRAY ANTENNA HAVING ANTENNA ELEMENTS ARRANGED IN A PLURALITY OF PLANES - A planar array antenna for radar sensors includes: a plurality of base antenna elements situated in a common plane on a printed circuit board; and additional antenna elements, which are situated in an offset plane, in each case over one of the base antenna elements. Each additional antenna element is situated individually on an associated carrier, and the printed circuit board is equipped with the individual carriers. | 08-29-2013 |
20130229318 | Multi-band Planar Inverted-F (PIFA) Antennas and Systems with Improved Isolation - Exemplary embodiments are provided of multi-band Planar Inverted-F antennas and antenna systems including the same. In an exemplary embodiment, a Planar Inverted-F antenna (PIFA) generally includes a planar radiator or upper radiating patch element having a slot. A lower surface of the PIFA is spaced apart from the upper radiating patch element. First and second shorting elements electrically connect the planar radiator to the lower surface. The PIFA also includes a feeding element electrically connected between the upper radiating patch element and the lower surface. The PIFA may be mounted on a ground plane that is larger than the lower surface of the PIFA. | 09-05-2013 |
20130241787 | MODULAR GRIDDED TAPERED SLOT ANTENNA - A planar antenna comprising: a substrate, a resonant element generating an electromagnetic wave, a plurality of parallel, spaced apart conductive strips on the substrate, wherein conductive strips form collinear rows of at least two strips that are physically separated by a slot to guide the electromagnetic wave in a specific direction. | 09-19-2013 |
20130249756 | Multi-Slot Common Aperture Dual Polarized Omni-Directional Antenna - Horizontally polarized and dual polarized antennas are described herein. In some examples, a horizontally polarized and dual polarized antenna may be mounted or operated with the physical vertical axis of the antenna being substantially perpendicular to a plane defined by the surface of the earth, and emanate an electric field that is parallel to the surface of the earth. The antenna may have a multi-slot aperture that reduces a variation in the far field omni-directional pattern. The antenna may have various cross-sectional configurations, and may have a radome at least partially surrounding the antenna and a supporting structure. | 09-26-2013 |
20130285866 | DUAL BAND ANTENNA - A dual band antenna providing a high forward gain includes a radiator, a director disposed in front of the radiator, and a reflector disposed behind the radiator. A dual resonance notch antenna including a conducting plate and a feeding portion is used as the radiator. The director includes a conducting plate and a short-circuiting portion and the reflector includes a conducting plate and a short-circuiting portion. Each conducting plate is disposed such that the direction of a normal to the conducting plate is a front-rear direction. Two slots having different lengths are formed in each conducting plate so as to be aligned with each other. The feeding portion is disposed in one of the slots. Each short-circuiting portion is disposed in one of the two slots at a position corresponding to the feeding portion. | 10-31-2013 |
20130285867 | COMPACT RADIATION STRUCTURE FOR DIVERSITY ANTENNAS - An antenna for diversity operation comprising a plurality of connected antenna units ( | 10-31-2013 |
20130314287 | ANTENNA ARRANGEMENT - The Figures illustrate an apparatus | 11-28-2013 |
20130321228 | ACTIVE ELECTRONICALLY SCANNED ARRAY ANTENNA - An antenna is provided and includes a radiator aperture assembly including a plurality of radiator sticks, each radiator stick including a row of radiating elements configured to transmit and receive RF energy and a body having opposite sides, conductive elements coupled to the radiating elements and a plate disposed proximate to the radiator aperture assembly through which the conductive elements extend. Complementary opposite sides of the respective bodies of adjacent radiator sticks and a surface of the plate are configured to form a slot radiator. | 12-05-2013 |
20130321229 | ARRAY ANTENNA - The invention relates to an array antenna ( | 12-05-2013 |
20130328738 | Wideband High Gain Antenna for Multiband Employment - An antenna element employable singularly or in an array and configured for concurrent RF transmission and receipt on a plurality of frequencies concurrently. The element is formed of conductive material on a substrate by a pair of substantially identical horns extending in opposite directions to distal tips. A cavity formed between the horns narrows to a narrowest point prior to curving. The element is capable of wideband RF communication on any frequency between a low frequency defined by the distance between the distal tips to a highest frequency defined by the narrowest point of the cavity. The antenna is especially well adapted for portable devices such as smartphones where concurrent cellular, Wi-Fi, and bluetooth communications may be accomplished with a single element. | 12-12-2013 |
20140009352 | ANTENNA ASSEMBLY AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - A wireless communication device includes a housing and an antenna assembly. The antenna assembly includes a base board, a feed member electronically connecting with the base board to carry an electrical current, and a radio member including a first radio portion, the first radio portion defining a first slot. The radiator couples with the feed member, inducing an electrical current in the first radio portion. The radio member is electronically connected to the base board through the metal housing, enabling the induced electrical current to flow through the first radio portion, the metal housing, and the base board to form a current loop. The induced electrical current flows through the first slot to excite a first resonance mode, enabling the antenna assembly to receive/transmit a first wireless signal. | 01-09-2014 |
20140009353 | ANTENNA UNIT - This antenna unit comprises an antenna having a radiating front surface, a back surface and a lateral outline having at least one electric field reinforcing region. It is characterized in that it further comprises a device protecting the antenna from lightning, having an internal surface at least partially capping the lateral outline of said antenna by being in electrical contact with said lateral outline, said internal surface covering the or each electric field reinforcing region, said protecting device having a curved external surface opposite said internal surface. | 01-09-2014 |
20140043195 | DEVICE AND METHOD FOR CONTROLLING AZIMUTH BEAMWIDTH ACROSS A WIDE FREQUENCY RANGE - A system and method for controlling azimuth beamwidth in a wide band antenna array, the system including radiating element(s) disposed above a ground plane and parasitic element(s). The parasitic element(s) include a slot formed therein, the parasitic element(s) and slot(s) configured to control beamwidth across a specific frequency range. The parasitic element(s) and the slot(s) may be configured to control beamwidth across contiguous or non-contiguous frequency ranges. | 02-13-2014 |
20140071009 | Dual-band Antenna - A dual-band antenna utilized in a wireless communication device for receiving or transmitting wireless signals of a first frequency band and a second frequency band includes a rectangular metal plane formed with a slot structure substantially extending from a first side to a second side of the rectangular metal plane, a feeding terminal formed on the rectangular metal plane, and a grounding element, disposed on a third side or a fourth side of the rectangular metal plane, for electrically connecting the rectangular metal plane and a system ground of the wireless communication device, wherein the first side is substantially parallel to the second side, the third side is substantially parallel to the fourth side, and the first side is substantially perpendicular to the third side or the fourth side. | 03-13-2014 |
20140111393 | COMPACT SLOT ANTENNA - The present invention relates to a compact slot antenna formed, in a multilayer substrate comprising, in order, at least one first conductive layer, a first dielectric layer, a second conductive layer, a second dielectric layer and a third conductive layer, of a first slot-line realised in the second conductive layer, said first slot-line being connected to the supply of the antenna, of a second and a third slot-lines realised respectively in the first and in the third conductive layers, the second and third slot-lines each being delimited by two conductive strips of which a first extremity, supply side, is interconnected by a via passing through a window realised in the second conductive layer and a second extremity connected to the second conductive layer, both conductive strips on the side of the second extremity being, either in open circuit, or in short circuit, the electrical length of the first, second and third slot-lines being a function of the wavelength at the operating frequency of the antenna. | 04-24-2014 |
20140168025 | Antenna System for Wireless Communication Device - The present invention discloses an antenna system for a wireless communication device, which includes a first metal slice formed with a first slot structure, a second metal slice formed with a second slot structure, a first signal transmission line, and a second signal transmission line, wherein when the first metal slice and the second metal slice are not connected and have a distance between each other, a feeding direction of the first transmission corresponding to the first metal slice is substantially opposite to a feeding direction of the second transmission corresponding to the second metal slice; or when the first metal slice and the second metal slice are partially connected, a feeding direction of the first transmission corresponding to the first metal slice is substantially the same as or different to a feeding direction of the second transmission corresponding to the second metal slice. | 06-19-2014 |
20140184460 | ANTENNA STRUCTURES - An antenna formed on a semiconductor structure having a substrate with electrical circuits thereon operationally related to the functionality of an antenna and one or more metallic structures formed by a through silicon via, microbump, copper pillar, or redistribution layer proximate to the substrate. The one or more metallic structures form a radiating element of the antenna. Exemplary antennas thus formed can include a slot antenna, a WLAN slot antenna, a planar invented F antenna (PIFA), a spiral antenna, a dipole antenna, a Yagi antenna, a planar dipole antenna, a vertical dipole antenna, a patch antenna, a helical antenna, a loop patch antenna, and combinations thereof. | 07-03-2014 |
20140218251 | Notch-Antenna Array and Method for Making Same - The notch-antenna array includes at least one notch-antenna array element that includes a first notch-antenna radiator, and a second notch-antenna radiator disposed at an angle to said first notch-antenna radiator. The angle is preferably 90 degrees and the element is either a slant antenna or an orthogonal antenna. The first notch-antenna radiator and the second notch-antenna radiator are formed integrally with one another. Each of the first and second notch-antenna radiators has substantially planar opposing surfaces and a flared notch formed therein. Each of the first and second notch-antenna radiators have substantially planar opposing surfaces and a slot configured to receive a printed circuit board therein formed between the substantially planar opposing surfaces. The printed circuit board includes a substrate with one or more dielectric layers, and a feedline. | 08-07-2014 |
20140253399 | Wideband Slot Antenna for Wireless Communication Devices - An antenna comprising a conductive base comprising a west edge, an east edge, a north edge, a south edge, and a center axis, a left slot of nonconductive material extending from the south edge toward the north edge and positioned between the west edge and the center axis, and a right slot of nonconductive material extending from the south edge toward the north edge and positioned between the east edge and the center axis. | 09-11-2014 |
20140253400 | Method and Apparatus for a compact modular phased array element - In various embodiments, a radiating cell of an antenna array can comprise a compacted hybrid as part of a stripline feed network, a radiating element having slots rotated with respect to the compacted hybrid, and a feed circuit layer in communication with the stripline feed network. The radiating cell radius can be a ½ wavelength or less. Furthermore, the compacted hybrid has two input ports and two output ports, where the input and output ports of the compacted hybrid are non-orthogonal and non-parallel to the slots of the radiating element. A radiating cell can comprise a ground plane with a first side and a second side, where the ground plane comprises a slot. The slot can be non-orthogonal and non-parallel to the two output ports of the feed network. | 09-11-2014 |
20140253401 | Wideband High Gain Antenna - An antenna array formed of individual electrically connected pluralities of wideband antenna elements. The array features a centrally located rectangular ground plane having a top surface defined by four edges. Each of said pluralities of elements is engaged to a separate substrate which is engaged along one of the four edges. The substrates may be angled to adjust the footprint of the antenna. | 09-11-2014 |
20140266944 | MIMO ANTENNA SYSTEM - A multiple input, multiple output (“MIMO”) antenna system is provided for operation on a radio frequency (“RF”) module that may be used in a wireless access device. The MIMO antenna system includes a plurality of multi-band antenna elements connected to a radio in a MIMO configuration. The multi-band antenna elements and the radio are configured to operate on a RF module. A reflector is formed on the RF module to contain the plurality of multi-band antenna elements and to concentrate signal communication in a sector, the plurality of multi-band antenna elements oriented to provide a sector coverage pattern formed by beam patterns generated by each of the multi-band antenna elements. | 09-18-2014 |
20140266945 | REFLECTORS FOR REFLECTING ELECTROMAGNETIC ENERGY AWAY FROM A USER DEVICE IN A FIRST DIRECTION - A user device having a dielectric carrier, a multi-band slot antenna, a reflector and a feed line connector is described. The multi-band slot antenna has slot openings in a second portion of conductive material disposed on a second side of the user device and is operable to radiate electromagnetic energy. The reflector is additional conductive material disposed on the second side and is operable to reflect a majority of the radiated electromagnetic energy away from the user device in a first direction. | 09-18-2014 |
20140300521 | PRINTED CIRCUIT BOARD ARRANGEMENT FOR SUPPLYING ANTENNAS VIA A THREE-CONDUCTOR SYSTEM FOR EXCITING DIFFERENT POLARIZATIONS - The printed-circuit board arrangement ( | 10-09-2014 |
20140313091 | SLOT-TYPE AUGMENTED ANTENNA - The present invention relates to an augmented antenna capable of operating in a wider frequency band, and receiving and reradiating radio signals. The augmented antenna includes radiation patterns formed using a plurality of radiation slots having multiple coupling regions. The radiation patterns are symmetrically connected and impedance-matched to transmit and receive radio signals, thereby improving a radio wave propagation environment. | 10-23-2014 |
20140320363 | MULTI-BAND PLANAR INVERTED-F (PIFA) ANTENNAS AND SYSTEMS WITH IMPROVED ISOLATION - Exemplary embodiments are provided of multi-band Planar Inverted-F antennas and antenna systems including the same. In an exemplary embodiment, a Planar Inverted-F antenna (PIFA) generally includes a planar radiator or upper radiating patch element having a slot. A lower surface of the PIFA is spaced apart from the upper radiating patch element. First and second shorting elements electrically connect the planar radiator to the lower surface. The PIFA also includes a feeding element electrically connected between the upper radiating patch element and the lower surface. The PIFA may be mounted on a ground plane that is larger than the lower surface of the PIFA. | 10-30-2014 |
20140354496 | ANTENNA - An antenna includes a substrate, a feed line formed on one surface of the substrate, a ground plane formed on the other surface of the substrate, a short-circuit stub that extends from a terminating end of the feed line and contacts the ground plane, and slits formed on the ground plane so as to cross the feed line. | 12-04-2014 |
20140354497 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - An antenna structure includes a feed section, a ground section, a first radiator, a second radiator, and a third radiator. The first radiator and the second radiator are both connected to the feed section. The third radiator is connected to the ground section. The first radiator defines a first slot. A second slot is defined between the second radiator and the third radiator. The third radiator defines a third slot. The third slot communicates with the second slot. Current is coupled from the first radiator and the second radiator to the third radiator via the first slot, the second slot, and the third slot. | 12-04-2014 |
20150029067 | RF SIGNAL PICKUP FROM AN ELECTRICALLY CONDUCTIVE SUBSTRATE UTILIZING PASSIVE SLITS - Embodiments of the present application relate generally to electronic hardware, computer software, wireless communications, network communications, wearable, hand-held, and portable computing devices for facilitating communication of information and presentation of media. An electrically conductive substrate (e.g., a metal or metal alloy) includes an antenna formed by a slot or opening formed in the substrate, and also includes at least one separate passive slot or opening (e.g., a passive slit) formed in the substrate. The antenna may be intentionally detuned from one or more target frequencies (e.g., 802.11, 2.4 GHz, 5 GHz) such that the antenna is not optimized (e.g., is not tuned) for the one or more target frequencies. One portion of the antenna may be electrically coupled with a ground potential. Another portion of the antenna may be electrically coupled with a RF receiver, transmitter, or transceiver. The antenna may be an active antenna, a passive antenna or both. | 01-29-2015 |
20150029068 | ANTENNA DEVICE - An antenna device | 01-29-2015 |
20150061955 | Ultra-Broadband Antenna Array with Constant Beamwidth Throughout Operating Frequency Band - An antenna array includes a plurality of antenna elements configured in a flare such that each of the plurality of antenna elements is uniformly spaced apart from at least one adjacent antenna element. Each of the plurality of antenna elements is coupled in a common area, and each of the plurality of antenna elements extends radially outward from the common area. A method of arranging antenna elements in an antenna array includes configuring a plurality of antenna elements in a flare such that each antenna element is uniformly spaced apart from at least one adjacent antenna element, and each of the plurality of antenna elements extends radially outward from a common area; and coupling each of the plurality of antenna elements in the common area. | 03-05-2015 |
20150109177 | MULTI-BAND ANTENNA - A compact multi-band antenna structure consisting of overlapping elements formed like tree rings is described. A dipole multi-band antenna includes a first arm having a first conductive cylinder with a predetermined length corresponding to a first frequency and a second conductive cylinder having a predetermined length corresponding to a second frequency positioned over the first conductive cylinder without contact between the first conductive cylinder and the second conductive cylinder. A first end of the first conductive cylinder is in the same plane as and is electrically coupled to a first end of the second conductive cylinder. A second arm is similarly formed. A feed line is coupled to the first and second conductive cylinders and to the cylinders in the second arm. Additional frequencies may be added by similarly stacking additional conductive cylinders. The structure is also applied to monopole, circular, spiral, helical and slot antennas. | 04-23-2015 |
20150349428 | ANTENNA DEVICE - An antenna device includes a dielectric substrate, a conductor plate that is placed on one surface of the dielectric substrate, that includes a first slot element, a second slot element, and one or more slits, and a ground conductor that is placed at a specified distance from the conductor plate in a first direction. A center of the first slot element is placed between a center of the second slot element and a center of each of slits, in a second direction. | 12-03-2015 |
20160079676 | WIFI PATCH ANTENNA WITH DUAL U-SHAPED SLOTS - The disclosure concerns a microstrip patch antenna configured for operation in the WiFi bands, including 2.4 GHz and 5.2/5.8 GHz. The microstrip patch antenna includes a pair of opposing u-shaped slots embedded in the patch conductor. The patch includes a patch width configured to provide a resonance at 2.4 GHz, and a slot width configured to provide a resonance at 5.2/5.8 GHz. Thus, the antenna provides a dual band WiFi patch antenna. | 03-17-2016 |
20160141757 | SHORTED BOWTIE PATCH ANTENNA WITH PARASITIC SHORTED PATCHES - Described herein are shorted bowtie patch antennas. The shorted bowtie patch antenna includes parasitic shorted patches. Signals are received by the shorted bowtie patch antenna. The received signals are propagated to a receiver. Signals sent from a transmitter are transmitted by the shorted bowtie patch antenna. Current is induced in the parasitic shorted patches during receiving and transmitting of signals. | 05-19-2016 |
20160164190 | BROADBAND OMNIDIRECTIONAL ANTENNA - The invention relates to an improved antenna which is distinguished by, among other things, the following features: the antenna has a monopole radiator ( | 06-09-2016 |
20160181692 | RADIATOR, SOLDERLESS INTERCONNECT THEREOF AND GROUNDING ELEMENT THEREOF | 06-23-2016 |
20180026355 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING SAME | 01-25-2018 |
20190148834 | MEASURING SYSTEM AND MEASURING METHOD FOR OVER THE AIR MEASUREMENT OF ELECTRIC FIELD POTENTIAL | 05-16-2019 |