Patent application number | Description | Published |
20080291100 | DUAL-BAND LOOP ANTENNA - A dual-band loop antenna for using in a mobile phone for (890˜960 MHz)/DCS(1710˜1880 MHz) application is disclosed to include a ground plane in a substantially rectangular shape having a grounding point and a shorting point, a radiating metallic loop having a feeding end and a shorting end electrically connected to the shorting point of the ground plane and spaced from the feeding end at a predetermined distance, and a radiating metallic plate surrounded by the radiating metallic loop and having one end electrically connected to a vicinity around the shorting end of the radiating metallic loop and spaced from the shorting end of the radiating metallic loop at a distance less than 10 mm. | 11-27-2008 |
20090184874 | MULTI-BAND ANTENNA - A multi-band antenna, it comprises: a grounding surface, a supporting base and a radiative metallic portion; the grounding surface has a first shorting point and a second shorting point; the radiative metallic portion is attached to a bottom surface of the supporting base, and includes: a first radiative metallic wire, a radiative metallic sheet, a second radiative metallic wire and a parasitic radiative metallic arm. One end point of the first radiative metallic wire is a feeding end for the antenna, while the other end point is electrically connected to the first shorting point of the grounding surface; the radiative metallic sheet is electrically connected to a section of the first radiative metallic wire; the second radiative metallic wire is surrounded by the first radiative metallic wire, of which one end point is electrically connected to the first radiative metallic wire; one end point of the parasitic radiative metallic arm is electrically connected to the second shorting point of the grounding surface. | 07-23-2009 |
20090256763 | Multiband folded loop antenna - The present invention relates to a multiband folded loop antenna comprising a dielectric substrate, a ground plane, a radiating portion and a matching circuit. The ground plane is located on the dielectric substrate and has a grounding point. The radiating portion comprises a supporter, a loop strip, and a tuning patch. The loop strip has a length about half wavelength of the antenna's lowest resonant frequency. The loop strip has a feeding end and a grounding end, with the grounding end electrically connected to the grounding point on the ground plane. The loop strip is folded into a three-dimensional structure and is supported by the supporter. The tuning patch is electrically connected to the loop strip. The matching circuit is located on the dielectric substrate with one terminal electrically connected to the feeding end of the loop strip and another terminal to a signal source. | 10-15-2009 |
20090273530 | Couple-fed multi-band loop antenna - The present invention is related to a coupled-fed multi-band loop antenna. The antenna comprises a dielectric substrate, a ground plane located on the dielectric substrate and has a grounding point, a radiating portion which comprise a supporter, a coupling trip and a loop strip, and a matching circuit. The coupling strip and loop strip are both located on the supporter, with the coupling strip surrounded by the loop strip. The length of loop strip is about 0.25 wavelength of the antenna's first resonant mode. The loop strip has a first end paralleling with the coupling loop, a second end and a shorting point near the second end and electrically connected to the grounding point on the ground plane. The matching circuit is on the dielectric substrate. One terminal of the matching circuit is connected to the coupling strip, and the other is connected to a signal source. | 11-05-2009 |
20110122027 | MOBILE COMMUNICATION DEVICE - A mobile communication device includes a ground plane and an antenna. The antenna is disposed on a dielectric substrate and includes a radiating metal portion, a coupling metal portion, and an inductive shorting metal portion. The radiating metal portion provides a resonant path for the antenna to generate first and second operating bands. The coupling metal portion is coupled to the radiating metal portion to form a first coupling portion and is connected to a source through a connecting metal strip. One end of the inductive shorting metal portion is electrically connected to the radiating metal portion, and the other end is electrically connected to the ground plane. The inductive shorting metal portion includes a first fractional section coupled to the radiating metal portion to form a second coupling portion, and a second fractional section coupled to the coupling metal portion to form a third coupling portion. | 05-26-2011 |
20110260927 | MOBILE COMMUNICATION DEVICE - A mobile communication device comprises a dielectric substrate and an antenna. The dielectric substrate has a ground region, a first no-ground region and a second no-ground region. The ground region comprises a primary ground plane and a protruded ground plane. The protruded ground plane is electrically connected to the primary ground plane and extends between the first no-ground region and the second no-ground region, such that the protruded ground plane separates the first no-ground region from the second no-ground region. The antenna comprises a first radiating portion and a second radiating portion. The first radiating portion is disposed in the first no-ground region. The start terminal of the second radiating portion is disposed in the second no-ground region. The second radiating portion extends and crosses over the protruded ground plane such that the end terminal of the second radiating portion is disposed in the first no-ground region. | 10-27-2011 |
20120001815 | Multiband Antenna and Method for an Antenna to be Capable of Multiband Operation - A multiband antenna having a ground plane and a radiating portion is provided. The radiating portion includes a first metal portion, a second metal portion, an inductively-coupled portion and a third metal portion. The first metal portion has a first coupling metal portion and a signal feeding line electrically connected thereto. The second metal portion has a second coupling metal portion and a shorting metal portion electrically connected thereto with a shorting point connected to the ground plane. The first and second coupling metal portions are coupled and a capacitively-coupled portion is formed therebetween. The inductively-coupled portion is connected between the third and second metal portions. The first and second metal portions enable the antenna to generate a first operating band. The first, second and third metal portions enable the antenna to generate a second operating band, the frequencies of which are lower than those of the first operating band. | 01-05-2012 |
20120188135 | COMMUNICATION DEVICE AND ANTENNA STRUCTURE THEREIN - A communication device including an antenna structure is provided, wherein the antenna structure includes a ground element, an antenna element, and a circuit element group. The ground element has a notch at one of its edges, and a long edge of the notch is at least two times longer than a short edge of the notch. The antenna element includes a metal portion disposed in the notch. Two ends of the metal portion are extended away from each other and are positioned substantially at or around two opposite edges of the notch. One end of the metal portion is coupled to the ground element, and the other end of the metal portion is a feeding terminal of the antenna element. The circuit element group includes at least a capacitive element and an inductive element. | 07-26-2012 |
20130016013 | MOBILE COMMUNICATION DEVICE AND ANTENNA DEVICEAANM Wong; Kin-LuAACI Kaohsiung CityAACO TWAAGP Wong; Kin-Lu Kaohsiung City TWAANM Kang; Ting-WeiAACI Kaohsiung CityAACO TWAAGP Kang; Ting-Wei Kaohsiung City TWAANM Hsieh; Shih-WeiAACI Taipei CityAACO TWAAGP Hsieh; Shih-Wei Taipei City TWAANM Chen; Wei YuAACI New Taipei CityAACO TWAAGP Chen; Wei Yu New Taipei City TW - A mobile communication device for operating in LTE and WWAN bands is provided in the invention. The mobile communication device includes a system circuit board and an antenna. The system circuit board includes a system ground plane. The antenna includes: an antenna substrate, substantially parallel to the system ground plane; a first radiation element, disposed on the antenna substrate; a second radiation element, disposed on the antenna substrate; an antenna ground plane, disposed on the antenna substrate, and coupled to the system ground plane; and a transmission line, disposed on the antenna substrate, coupled to the first and second radiation elements, and having a feed point. The mobile communication device is further configured to accommodate a data transmission component. | 01-17-2013 |
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 |
20130241784 | COMMUNICATION DEVICE AND TUNABLE ANTENNA ELEMENT THEREIN - A communication device includes a ground element, an antenna element, a circuit element group, and a communication module. The antenna element is a loop antenna. One end of the antenna element is a grounding end coupled to the ground element, and the other end of the antenna element is a feeding end close to the grounding end. The circuit element group includes at least two separate circuit element sub-groups. The communication module is coupled to the circuit element group. One of the circuit element sub-groups of the circuit element group is selectively coupled to the feeding end so as to make the antenna element operate in different communication bands. | 09-19-2013 |
20130257660 | COMMUNICATION DEVICE WITH CONDUCTIVE HOUSING AND ANTENNA ELEMENT THEREIN - A communication device with an upper cover and a lower cover including a conductive housing and an antenna element is provided. The conductive housing includes a first conductive surface and a second conductive surface. The first conductive surface is disposed on a surface of the upper cover. The second conductive surface is disposed on a surface of the lower cover. The first conductive surface and the second conductive surface are electrically coupled to each other, and a first edge of the first conductive surface is adjacent to a second edge of the second conductive surface. The antenna element is substantially disposed between the first edge and the second edge, and is excited to form a first band and a second band. The antenna element includes a ground element, a first radiating element, and a second radiating element. | 10-03-2013 |
20130300615 | COMMUNICATION DEVICE AND ANTENNA STRUCTURE THEREIN - A communication device including a multilayer circuit board and an antenna structure therein is provided. The multilayer circuit board has at least a first plane, a second plane, and a third plane. A ground plane is disposed on one of the planes, and the ground plane is in proximity to a clearance region of the multilayer circuit board. An antenna structure is disposed in the clearance region. The antenna structure includes a first metal portion and a second metal portion. The first metal portion is coupled to a signal source through a feeding portion. The second metal portion includes at least a first line segment and a second line segment. The first line segment and the second line segment are disposed respectively on any two planes of the multilayer circuit board. The first metal line and the second metal line forms a loop structure through two conductive vias. | 11-14-2013 |
20130300625 | COMMUNICATION DEVICE AND MIMO (MULTI-INPUT MULTI-OUTPUT) ANTENNA SYSTEM THEREIN - A communication device including a ground plane and an antenna system is provided. The antenna system includes at least two antennas, which are both located at a first edge of the ground plane and operate in at least a first band. The ground plane has at least one slit, and an open end of the slit is located at a second edge adjacent to the first edge. The open end of the slit has a distance of at least 0.2 wavelength of a frequency in the first band to the first edge. When the antenna system operates in the first band, the slit can attract excited surface currents on the ground plane, thereby causing weaker surface currents flowing along the first edge of the ground plane. The coupling between the at least two antennas in the antenna system is hence decreased. | 11-14-2013 |
20130314293 | COMMUNICATION DEVICE AND ANTENNA SYSTEM THEREIN - A communication device including a first conductive plane and an antenna system is provided. The antenna system includes at least a first antenna, a second antenna and a ground plane, and the antenna system is located at a first edge of the first conductive plane. Both the first antenna and the second antenna operate in at least a first band. The ground plane substantially has an inverted T-shape and includes a main ground plane and a protruded ground plane. The main ground plane is coupled to the first conductive plane. The protruded ground plane is located between the first antenna and the second antenna. The ground plane has at least a first slot. A portion of the first slot is located in the protruded ground plane, and two closed ends of the first slot are located in the main ground plane and extend away from each other. | 11-28-2013 |
20130342417 | COMMUNICATION DEVICE AND ANTENNA ELEMENT THEREIN - A communication device including an antenna element, a ground element and a battery element is provided. The ground element has a short edge as a first edge and a long edge as a second edge. The antenna element is close to the first edge or at a dented section of the first edge. There is a notch in the ground element, and an open edge of the notch is at the second edge. The length of the notch is at least 0.3 times the maximum length of the ground element, and the width of the notch is at least 0.4 times the maximum width of the ground element. | 12-26-2013 |
20130342425 | COMMUNICATION DEVICE AND ANTENNA SYSTEM THEREIN - A communication device including a supporting plate and an antenna system is provided. The supporting plate includes a conductive plate and a non-conductive plate. The conductive plate has a first edge and a second edge. The antenna system includes at least two antennas, which are both disposed at the first edge of the conductive plate and operate in at least a first band. A distance between the first edge and the second edge of the conductive plate is about 0.25 wavelength of the lowest frequency in the first band, and the distance is smaller than a length of the first edge. | 12-26-2013 |
20140078009 | COMMUNICATION DEVICE AND ANTENNAS WITH HIGH ISOLATION CHARACTERISTICS - The present invention is related to a communication device which includes a ground element and an antenna system. The ground element includes a main ground plane and a protruded ground plane. The antenna system includes a first antenna and a second antenna. The first antenna includes a metal radiation element and is adjacent to the main ground plane of the ground element. The second antenna is a slot antenna and is formed in the protruded ground plane of the ground element. The protruded ground plane is adjacent to the first antenna. | 03-20-2014 |
20140085158 | COMMUNICATION DEVICE AND ANTENNAS WITH HIGH ISOLATION CHARACTERISTICS - A communication device includes a system circuit board, a ground plane, a first antenna, a second antenna, a first metal element, and a second metal element. The ground plane is disposed on the system circuit board. The first metal element is substantially located between the first antenna and the second antenna. The first metal element is coupled to the ground plane such that a system ground plane is formed. The second metal element is adjacent to the first metal element and substantially located between the first antenna and the second antenna. The second metal element is coupled to the system ground plane. The first antenna, the second antenna, and the first metal element are substantially located at an edge of the system circuit board. | 03-27-2014 |
20140085159 | COMMUNICATION DEVICE AND METHOD FOR DESIGNING ANTENNA ELEMENT THEREOF - A communication device including a ground plane and an antenna element is provided. An edge of the ground plane is embedded with a notch, which has at least a first edge and a second edge. The antenna element, disposed at the notch, has at least a first operating frequency band and a second operating frequency band. The antenna element includes a first conductive portion and a second conductive portion. The first conductive portion has a starting terminal, electrically coupled to the first edge of the notch through a signal source, as a feeding terminal of the antenna element. A capacitive coupling portion is formed between an end terminal of the first conductive portion and the ground plane. The second conductive portion has a shorting terminal electrically coupled or connected to the second edge of the notch. | 03-27-2014 |
20140097994 | COMMUNICATION DEVICE AND TUNABLE ANTENNA ELEMENT THEREIN - A communication device includes a ground element and an antenna element. The antenna element includes a first radiation element, a second radiation element, and a control circuit. One end of the first radiation element is coupled to a signal source, and another end of the first radiation element is an open end. The second radiation element includes at least a first portion and a second portion. A first end of the first portion is a shorted end coupled to the ground element, and a fourth end of the second portion is an open end. The second radiation element surrounds the open end of the first radiation element. The control circuit is coupled between a second end of the first portion and a third end of the second portion of the second radiation element. The control circuit provides at least two different impedances. | 04-10-2014 |
20140125536 | COMMUNICATION DEVICE AND WIDE-BAND ANTENNA ELEMENT THEREIN - A communication device including a ground element and an antenna element is provided. The antenna element is disposed adjacent to the ground element. The antenna element includes a first radiation element and a second radiation element. The first radiation element includes a first portion and a second portion. The first portion is coupled through an inductive element to the second portion. The first portion is coupled to a signal source. The second portion includes a plurality of bends such that a coupling gap is formed between an open end of the second portion and the first portion. The second radiation element has a shorted end and an open end. The shorted end of the second radiation element is coupled to the ground element. The second radiation element extends and at least partially surrounds the first radiation element. | 05-08-2014 |
20140139392 | COMMUNICATION DEVICE - A communication device including a first antenna, a second antenna, a ground element, and an isolation element is provided. The ground element is coupled to a conductive plane. The isolation element is disposed between the first antenna and the second antenna and includes a first portion and a second portion. A first end of the first portion and a first end of the second portion are respectively coupled to the ground element, and a second end of the first portion is spaced apart a coupling distance from a second end of the second portion. | 05-22-2014 |
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 |
20140218243 | COMMUNICATION DEVICE WITH TUNABLE GROUND PLANE ANTENNA ELEMENT - A communication device including a ground element and an antenna element is provided. The ground element has a first edge and a second edge, wherein the first edge is substantially perpendicular to the second edge. The antenna element is disposed adjacent to the first edge of the ground element. The ground element is coupled to a circuit module. The circuit module includes at least two reactive circuits, such that the antenna element is selectively operated in a first band or a second band. The antenna element and the ground element form an unsymmetrical dipole antenna structure. The longest current path length of the antenna element is less than 0.3 times the length of the second edge. | 08-07-2014 |