Plural Diverse-type Antennas Using Same Active Element Patents (Class 343/729)
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Publication number: 20130342409Abstract: Patch antennas for signals of global navigation satellite systems (GNSS) are described. A compact antenna system reduces directional diagram level in the rear hemisphere primarily for cross-polarized (left hand circularly-polarized) component. It can be used for reducing multipath reception. The antenna receives GNSS signals and includes a patch circularly-polarized radiator consisting of a radiating patch, a ground plane under it and a loop radiator coaxially located around the patch radiator. The loop radiator is excited by a separate power circuit or by a passive method where LHCP waves of MP and loop radiators in the rear hemisphere would be anti-phase added. A dual-band antenna system includes an active HF radiator, under which there is an active LF radiator under which there is a passive LF radiator, a loop HF radiator being coaxially located around the active HF radiator.Type: ApplicationFiled: June 7, 2012Publication date: December 26, 2013Applicant: TOPCON POSITIONING SYSTEMS, INC.Inventors: Dmitry Vitalievich Tatarnikov, Andrey Vitalievich Astakhov
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Patent number: 8599086Abstract: A monopole slot antenna applicable to a mobile communication device includes a dielectric substrate, a first ground plane, a second ground plane, a monopole slot, and a microstrip feedline. The first ground plane is disposed on the dielectric substrate. The second ground plane is in the vicinity of the first ground plane and electrically connected to the first ground plane via a metal wire. A section of the metal wire is disposed on one surface of the dielectric substrate. The monopole slot is disposed on the first ground plane and has an open end disposed near the metal wire that connects the first and the second ground planes. The microstrip feedline is disposed on a surface of the dielectric substrate opposite to the first ground plane with one end of the microstrip feedline extended across the monopole slot and the other end connected to a signal source.Type: GrantFiled: August 6, 2009Date of Patent: December 3, 2013Assignee: Acer IncorporatedInventors: Kin-Lu Wong, Fang-Hsien Chu
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Patent number: 8587488Abstract: The invention relates to an antenna unit for wireless communication to a multitude of wireless interfaces comprising a multitude of individual antennas, each antenna comprising a coil comprising at least one winding and the individual antennas embrace the same volume and to a hearing aid comprising such antenna unit. The object of the present invention is to provide an antenna unit and a hearing aid providing several wireless interfaces at a relatively small volume. The problem is solved in that at least one of the coils is adapted for providing an inductive coupling to another device. Among the advantages are reduced space/volume, reduced cost and reduced sensitivity to production tolerances compared to a solution comprising individual, separate antennas. The invention may e.g. be used in wireless communication devices, e.g. mobile telephones, head phones, head sets, hearing aids, etc.Type: GrantFiled: August 13, 2008Date of Patent: November 19, 2013Assignee: Oticon A/SInventors: Ove Knudsen, Poul Henriksen
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Patent number: 8570230Abstract: An antenna includes a simple structure and a small null angle, which achieves communication using a circularly-polarized wave. The antenna includes a conductive wire arranged in loops in such a way as to form a cross shape. A part at which two line portions projecting outward from the center portion define a right angle is included in the loop path of the conductive wire. This part allows the antenna to transmit and receive an electromagnetic wave in all directions and have a circular polarization characteristic.Type: GrantFiled: February 29, 2008Date of Patent: October 29, 2013Assignee: National University Corporation Ehime UniversityInventors: Mayumi Matsunaga, Yasuhiro Yokota
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Publication number: 20130234900Abstract: Provided is a terminal including an antenna apparatus capable of securing a wideband characteristic in a multiple input multiple output (MIMO) antenna system. The antenna apparatus may include a band pass filter for blocking or reducing interference from another antenna apparatus. The antenna apparatus may maintain a resonant frequency band to be wide by forming a sub resonance using a plurality of uneven shapes.Type: ApplicationFiled: December 11, 2012Publication date: September 12, 2013Applicant: PANTECH CO., LTD.Inventor: Joo Sung KIM
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Publication number: 20130229316Abstract: A system that incorporates the subject disclosure may include, for example, a method for coupling a primary antenna to an auxiliary antenna portion with a current-controlled switch. The method further includes generating a unidirectional direct current or a first bias voltage having a first polarity to cause the current-controlled switch to substantially form a conduction channel between the primary antenna and the auxiliary antenna portion. While the conduction channel is present, a first resonance frequency range of the primary antenna is frequency shifted to a second resonance frequency range. The method can also include removing the unidirectional direct current or generating a second bias voltage having a second polarity to cause the current-controlled switch to form an open circuit between the primary antenna and the auxiliary antenna portion. While the open circuit is present, the first resonance frequency range of the primary antenna is restored. Other embodiments are disclosed.Type: ApplicationFiled: February 15, 2013Publication date: September 5, 2013Applicant: Skycross, Inc.Inventors: Li Chen, Frank M. Caimi, Mark T. Montgomery, Paul A. Tornatta, JR.
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Publication number: 20130207856Abstract: An antenna structure (111) commences at a feed point (202) that is coupled to an inverted F antenna section (204). The inverted F antenna section is coupled to a monopole section (210) that is further coupled to a helical section (216). The inverted F section, monopole section, and helical section are coupled in series together.Type: ApplicationFiled: February 14, 2013Publication date: August 15, 2013Applicant: MOTOROLA SOLUTIONS, INC.Inventor: MOTOROLA SOLUTIONS, INC.
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Patent number: 8502748Abstract: A three-dimensional dual-band antenna including a first radiation portion, a second radiation portion, a connection portion, an impedance matching portion and a feeding portion is provided. The second radiation portion is located under the radiation portion and parallel with the first radiation portion. The connection portion is connected to the first side of the first radiation portion and extended downward vertically, for connecting the first radiation portion and the second radiation portion. The impedance matching portion is connected to a second side of the first radiation portion and extended downward vertically. The first side and the second side are opposite. The feeding portion is connected to the second side and extended downward vertically. The feeding portion receives a feeding signal. The first and the second radiation portion are operated at the first and the second bandwidth respectively, wherein the second bandwidth is in higher frequency than the first bandwidth.Type: GrantFiled: August 27, 2010Date of Patent: August 6, 2013Assignee: Arcadyan Technology CorporationInventors: Mao-Tse Liang, Shih-Chieh Cheng, Kuo-Chang Lo
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Patent number: 8497806Abstract: A mobile wireless communications device may include a housing, a printed circuit board (PCB) carried by the housing. The device may also include an antenna coupled to wireless transceiver circuitry carried by the PCB. The antenna may include first and second feed legs extending upwardly from the PCB, a loop conductor spaced above the PCB and having a gap therein defining first and second ends, and a first conductor arm spaced above the PCB and extending between the first feed leg and the first end. The antenna may further include a second conductor arm spaced above the PCB and having a proximal portion between the second feed leg and the second end, and having a distal portion extending outwardly from the second feed leg. The first conductor arm and the proximal portion may define a slotted opening into an interior of the loop conductor.Type: GrantFiled: January 12, 2011Date of Patent: July 30, 2013Assignee: Research In Motion LimitedInventors: Chun Kit Lai, Soo Liam Ool, Qiwu Tan
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Patent number: 8487821Abstract: An antenna includes a dipole radiator region forming a series resonant tank having a first quality factor value Q1, and a loop compensator/radiator region integral with the dipole region and forming a parallel resonant tank having a second quality factor value Q2 that is substantially equal to Q2. The antenna may be a conductive sheet antenna (e.g., comprising copper tape) having a generally “A” shaped structure with a discontinuity in a middle segment.Type: GrantFiled: June 8, 2009Date of Patent: July 16, 2013Assignee: Symbol Technologies, Inc.Inventors: Mark Duron, Richard Knadle
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Patent number: 8466843Abstract: An integrated antenna system is disclosed which may include a first antenna sub-system. The integrated antenna system may further include a second antenna sub-system. The first antenna sub-system may be a Ku-band antenna sub-system. The second antenna sub-system may be one of: an L-band antenna sub-system or a C-band antenna sub-system. The second antenna sub-system may be tightly/seamlessly integrated with the first antenna sub-system, thereby providing a system with integrated antenna bands which provides omni-directional coverage.Type: GrantFiled: March 19, 2009Date of Patent: June 18, 2013Assignee: Rockwell Collins, Inc.Inventors: Jonathan P. Doane, Brian J. Herting, Lee M. Paulsen, Jeremiah D. Wolf, Wajih A. El Sallal
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Patent number: 8462061Abstract: The present invention relates to printed or single-sided compound field antennas. The single-sided compound loop antennas have coplanar electric field radiators and magnetic loops with electric fields orthogonal to magnetic fields that achieve performance benefits in higher bandwidth (lower Q), greater radiation intensity/power/gain, and greater efficiency.Type: GrantFiled: September 8, 2010Date of Patent: June 11, 2013Assignee: Dockon AGInventor: Forrest James Brown
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Publication number: 20130141290Abstract: Both ends of a feeder and both ends of a reflector of an antenna device are connected using a pair of diodes. When the diodes are turned on, a loop antenna is formed which loops the feeder, the diode, the reflector, a capacitor, and the diode, and the antenna device operates as the loop antenna. When the diodes are turned off, the antenna device operates as a Yagi-Uda antenna which is formed of the feeder, the reflector, and a wave guide.Type: ApplicationFiled: February 6, 2012Publication date: June 6, 2013Applicant: PANASONIC CORPORATIONInventors: Suguru Fujita, Ryosuke Shiozaki
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Patent number: 8432706Abstract: A printed circuit board and an electronic product are disclosed. In accordance with an embodiment of the present invention, the printed circuit board includes a first board, which has an electronic component mounted thereon, and a second board, which is positioned on an upper side of the first board and covers at least a portion of an upper surface of the first board and in which an EBG structure is inserted into the second board such that a noise radiating upwards from the first board is shielded. Thus, the printed circuit board can readily absorb various frequencies, be easily applied without any antenna effect and be cost-effective in manufacturing.Type: GrantFiled: December 22, 2009Date of Patent: April 30, 2013Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Han Kim, Chang-Sup Ryu
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Patent number: 8412290Abstract: A miniaturized, low power RF transmitter with a dual mode active on-chip antenna/inductor is disclosed in which antenna also serves as the oscillator inductor. Also disclosed is a miniaturized low power RF receiver with an on-chip antenna; and a RF transmitter system wherein an on-chip antenna is wirelessly coupled to an off chip patch antenna are disclosed. Advantageously, the TX chip is housed in a low loss, e.g. Low Temperature Co-fired Ceramic (LTCC) package with a patch antenna to provide a System-on-Package implementation comprising electromagnetic coupling between a RF TX chip comprising an integrated on-chip antenna and a package antenna.Type: GrantFiled: October 16, 2009Date of Patent: April 2, 2013Inventors: Atif Shamim, Muhammad Arsalan, Langis Roy
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Publication number: 20130069838Abstract: An electrically small dual-band planar tunable UHF/L-Band antenna. In one example, the dual-band antenna includes a combination of a semi-spiral antenna for the UHF frequencies and a microstrip patch antenna for the L-band frequencies.Type: ApplicationFiled: September 15, 2011Publication date: March 21, 2013Applicant: THE CHARLES STARK DRAPER LABORATORYInventors: John E. Grandfield, Michael P. Abban, Brad D. Gaynor
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Publication number: 20130063318Abstract: An antenna apparatus includes firs and second antenna elements. The first antenna element operates as a loop antenna that resonates at a first wavelength, and the antenna apparatus operates as an inverted-F antenna that resonates at a second wavelength. The first antenna elements includes a first element portion formed to have a predetermined height from a surface of a dielectric substrate, and the second antenna element includes a second element portion which is formed to be substantially parallel to the first element portion at least at a predetermined distance apart from the first antenna element.Type: ApplicationFiled: November 6, 2012Publication date: March 14, 2013Applicant: PANASONIC CORPORATIONInventor: PANASONIC CORPORATION
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Patent number: 8390519Abstract: A dual-feed port dual band (DFDB) antenna module comprising a first antenna element disposed on a first planar surface, a second antenna element disposed on a second planar surface, and a third antenna element disposed on a third planar surface. A first feed port is coupled to a first transceiver circuit adapted to operate in a first band and a second feed port is coupled to a second transceiver circuit adapted to operate in the first band and to a receiver circuit adapted to operate in a second band. The first and second feed ports are oriented substantially orthogonal with respect to each other.Type: GrantFiled: January 7, 2010Date of Patent: March 5, 2013Assignee: Research In Motion LimitedInventors: Dong Wang, Qinjiang Rao
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Publication number: 20130052953Abstract: A dual band antenna includes a far field antenna structure for facilitating the communication of first data with a remote device via far field signaling in a millimeter wave band. A near field antenna structure facilitates the communication of second data with a remote device via near field signaling in a near field band. The far field antenna structure and the near field antenna structure share at least one common antenna element.Type: ApplicationFiled: October 29, 2012Publication date: February 28, 2013Applicant: Broadcom CorporationInventor: Broadcom Corporation
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Patent number: 8378902Abstract: An antenna used in portable electronic devices includes a first antenna unit shaped as a planar inverted-F antenna (PIFA) and a second antenna unit shaped as a loop antenna and connected to the first antenna unit. The first antenna unit receives/sends wireless signals at relatively higher frequencies, the second antenna unit receives/sends wireless signals at relatively lower frequencies, and the first antenna unit is coupled with the second antenna unit to regulate the working frequency band of the antenna.Type: GrantFiled: January 29, 2010Date of Patent: February 19, 2013Assignee: Chi Mei Communication Systems, Inc.Inventor: Yi-Chieh Lee
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Patent number: 8373577Abstract: A vehicle-mounted communication device includes a non-directional antenna provided at a vehicle and having a directional characteristic in all directions uniformly in a horizontal plane, at least one of directional antennas provided at the vehicle and having a directional characteristic in a specific direction, an antenna switching portion switching so as to be connected to one of the non-directional antenna and the directional antenna on the basis of information to be sent in a case where the information is sent from the vehicle and switching so as to be connected to one of the non-directional antenna and the directional antenna on the basis of information to be received in a case where the information transmitted through the air is received.Type: GrantFiled: September 17, 2010Date of Patent: February 12, 2013Assignee: Aisin Seiki Kabushiki KaishaInventors: Kiyokazu Ieda, Yuichi Murakami, Shingo Fujimoto
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Patent number: 8351849Abstract: A wireless communication device includes a transceiver configured for communication using multiple radio access technologies. An antenna array is coupled to the transceiver, and includes a first antenna element and a second antenna element. A control circuit is operable to detect an available one of the radio access technologies based on a wireless signal received at the antenna array, and is operable to automatically alter a configuration of the antenna array by switching the first and/or second antenna elements between active and inactive states responsive to detection of the available one of the radio access technologies. Related methods of operation are also discussed.Type: GrantFiled: August 23, 2010Date of Patent: January 8, 2013Assignee: Sony Ericsson Mobile Communications ABInventor: Zhinong Ying
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Patent number: 8340714Abstract: A computing device with a configurable antenna. The antenna is configured through a switching circuit operating under software control. Operating characteristics of the antenna are configured based on connections between conducting segments established by the switching circuit, allowing the nominal frequency, bandwidth or other characteristics of the antenna to be configured. Because the switching is software controlled, the configurable antenna may be integrated with a software defined radio. The radio and antenna can be reconfigured to support communication according to different wireless technologies at different times or to interleave packets according to different wireless technologies to support concurrent sessions using different wireless technologies.Type: GrantFiled: December 14, 2007Date of Patent: December 25, 2012Assignee: Microsoft CorporationInventors: Amer A. Hassan, Christian Huitema
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Publication number: 20120313831Abstract: An antenna system may include a first antenna having a helical shaped portion, and configured to receive signals over a first frequency range. A second antenna may be positioned in proximate distance from the first antenna, and be configured to receive signals over a second frequency range. A splitter may be configured for separating signals received from radio and remote keyless entry antennas and may include a first branch including a first filter to filter AM band signals from communications signals received from an antenna, a second branch including a second filter to filter FM band signals from communications signals received from the antenna, a third branch including a third filter to filter remote keyless entry signals from communications signals received from the antenna, and an amplifier to amplify the remote keyless entry signals. The filters may be passive filters. The antenna may be a whip antenna or roof antenna.Type: ApplicationFiled: August 22, 2012Publication date: December 13, 2012Applicant: FLEXTRONICS AUTOMOTIVE INC.Inventors: Victor Rabinovich, Yarko Matkiwsky
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Publication number: 20120313830Abstract: Methods and systems for extending a bandwidth of a multi-band antenna of a user device are described. A multi-band antenna includes a single radio frequency (RF) input coupled to a first antenna, the first antenna configured to provide a first resonant mode. The multi-band antenna also includes a second antenna parasitically coupled to the first antenna to provide additional resonant modes of the multi-band antenna.Type: ApplicationFiled: August 16, 2011Publication date: December 13, 2012Inventor: Cheng-Jung Lee
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Publication number: 20120274521Abstract: A complex antenna which receives or transmits a plurality of electromagnetic waves of different frequencies is provided. A first one of the electromagnetic waves is an alternating magnetic flux. The complex antenna includes a first antenna which receives or transmits the alternating magnetic flux. The complex antenna includes a second antenna arranged such that the first antenna and the second antenna overlap as viewed from a direction in which the alternating magnetic flux penetrates the first antenna. The second antenna is adapted for reducing an induction effect of a current which is induced by the alternating magnetic flux and flows in the second antenna.Type: ApplicationFiled: June 20, 2012Publication date: November 1, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takashi MINEMURA, Kouji Hayashi, Hiroshi Shimasaki
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Patent number: 8295799Abstract: Aspects of a method and system for identifying a radio frequency identification (RFID) tag location using a switchable coil are presented. Aspects of the systems may include one or more processors that enable selection of an inductor coil from a plurality of inductor coils. The selection of the inductor coil may be based on a change in an electromagnetic field, with respect to an initial electromagnetic field, as detected by the selected inductor coil. The processors may enable transmission of a signal, having a transmitter frequency in the UHF frequency band, via the selected inductor coil.Type: GrantFiled: March 22, 2012Date of Patent: October 23, 2012Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Amin Shameli
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Patent number: 8295783Abstract: A wireless device comprising a plurality of chips may be operable to dynamically configure wireless communication between the plurality of chips. Each of the chips may include one or more transceivers and one or more integrated directional antennas communicatively coupled to the one or more transceivers. The communications link between chips in the wireless device may be dynamically configured via control of the transceivers and/or the integrated directional antennas. The antennas may include patch antennas and/or dipole antennas. The transceivers may be configured by controlling output power of power amplifiers or by controlling gain of low noise amplifiers. The communications link may be dynamically configured by controlling a characteristic impedance of the antennas for impedance matching to transceivers. A frequency of the communication link may be controlled by configuring the antennas. A bandwidth of the communications link may be configured based on activity of processors in the wireless device.Type: GrantFiled: May 20, 2009Date of Patent: October 23, 2012Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran
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Patent number: 8289219Abstract: An antenna arrangement including a first element operable in a first resonant mode at a first resonant frequency band; and a second element arranged to couple with the first element to enable the first element to resonate in a second resonant mode having a second resonant frequency band, the second element having an impedance at the first resonant frequency band which substantially suppresses coupling between the first element and the second element.Type: GrantFiled: May 2, 2007Date of Patent: October 16, 2012Assignee: Nokia CorporationInventor: Richard Breiter
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Patent number: 8249678Abstract: A wireless communication device having a configurable antenna, includes: a first antenna having a first resonant frequency; a first frequency modification unit for modifying the first resonant frequency of the antenna; a function operation unit activating a plurality of functions; and a control unit controlling the first frequency modification unit to modify the first resonant frequency in accordance with a function activated by the function operation unit.Type: GrantFiled: September 26, 2008Date of Patent: August 21, 2012Assignee: Kyocera CorporationInventors: Yasuhiro Abe, Kenji Waku
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Publication number: 20120162036Abstract: A disclosed antenna device includes a ground element configured to be grounded, a first antenna to be connected to a radio communication module, and a second antenna configured to be parasitic on the first antenna, the second antenna receiving no power feed.Type: ApplicationFiled: December 19, 2011Publication date: June 28, 2012Inventors: Masahiro Yanagi, Shigemi Kurashima, Hideaki Yoda
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Patent number: 8165552Abstract: Aspects of a method and system for identifying a radio frequency identification (RFID) tag location using a switchable coil are presented. Aspects of the systems may include one or more processors that enable selection of an inductor coil from a plurality of inductor coils. The selection of the inductor coil may be based on a change in an electromagnetic field, with respect to an initial electromagnetic field, as detected by the selected inductor coil. The processors may enable transmission of a signal, having a transmitter frequency in the UHF frequency band, via the selected inductor coil.Type: GrantFiled: September 29, 2006Date of Patent: April 24, 2012Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Amin Shameli
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Publication number: 20120092221Abstract: A portable electronic device is provided that has a hybrid antenna. The hybrid antenna may include a slot antenna structure and a planar inverted-F antenna structure. The planar inverted-F antenna structure may be formed from traces on a flex circuit substrate. A backside trace may form a series capacitance for the planar inverted-F antenna structure. The antenna slot may have a perimeter that is defined by the location of conductive structures such as flex circuits, metal housing structures, a conductive bezel, printed circuit board ground conductors, and electrical components. Springs may be used in electrically connecting these conductive elements. A spring-loaded pin may be used as part of an antenna feed conductor. The pin may connect a transmission line path on a printed circuit board to the planar inverted-F antenna structure while allowing the planar inverted-F antenna structure to be removed from the device for rework or repair.Type: ApplicationFiled: December 22, 2011Publication date: April 19, 2012Inventors: Robert W. Schlub, Qingxiang Li, Juan Zavala, Robert J. Hill
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Patent number: 8159404Abstract: A helical element, which is operated in the frequency band of FM broadcast, is wound around the outer periphery of a rod-shaped support member 10. A line-shaped element 12, which is operated in the frequency band of terrestrial digital television broadcast, is disposed in a first groove 10a of a predetermined length formed on the outer periphery of the support member 10 from the lower end thereof. With this arrangement, a multi-frequency antenna 1, which is operated in the frequency band of FM broadcast and the frequency band of terrestrial digital television broadcast, can be arranged, and the entire length L of the helical element can be reduced and it can be operated in a plurality of frequency bands with the effect of the line-shaped element 12.Type: GrantFiled: October 11, 2007Date of Patent: April 17, 2012Assignee: Nippon Antena Kabushiki KaishaInventor: Masashi Wakui
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Publication number: 20120019421Abstract: A mobile wireless communications device may include a housing, a printed circuit board (PCB) carried by the housing. The device may also include an antenna coupled to wireless transceiver circuitry carried by the PCB. The antenna may include first and second feed legs extending upwardly from the PCB, a loop conductor spaced above the PCB and having a gap therein defining first and second ends, and a first conductor arm spaced above the PCB and extending between the first feed leg and the first end. The antenna may further include a second conductor arm spaced above the PCB and having a proximal portion between the second feed leg and the second end, and having a distal portion extending outwardly from the second feed leg. The first conductor arm and the proximal portion may define a slotted opening into an interior of the loop conductor.Type: ApplicationFiled: January 12, 2011Publication date: January 26, 2012Applicants: Ontario, Canada)Inventors: Chun Kit Lai, Soo Liam Ooi, Qiwu Tan
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Patent number: 8098211Abstract: A feed radiation electrode functioning as an antenna is capable of performing radio communication in two different frequency bands, a lower frequency band and a higher frequency band, defined in advance for radio communication. The feed radiation electrode has a loop shape, and a feeding end Q and a feeding-end adjacent portion P are connected with a shortcut path, which is provided by a stub, therebetween. Thus, the feed radiation electrode is capable of performing radio communication in the lower frequency band for radio communication in accordance with a resonant operation based on a current flowing through a channel IL and performing radio communication in the higher frequency band for radio communication in accordance with a resonant operation based on currents flowing through channels IH and IH?.Type: GrantFiled: June 19, 2009Date of Patent: January 17, 2012Assignee: Murata Manufacturing Co., Ltd.Inventors: Kengo Onaka, Kunihiro Komaki, Tsuyoshi Mukai
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Publication number: 20110273346Abstract: Provided is a portable electronic device which can be changed between a first state and a second state and comprises an antenna that forms a loop in the first state and does not form the loop in the second state. A mobile telephone (1) comprises: an operation unit-side casing (2); a display unit-side casing (3); a linking part (4) which links the operation unit-side casing (2) and the display unit-side casing (3) in such a way that it is possible to change between the first state and the second state; and a loop antenna (100) which is disposed at the operation unit-side casing (2) and the display unit-side casing (3) and is changed to form a loop in the first state and not to form the loop in the second state.Type: ApplicationFiled: November 26, 2009Publication date: November 10, 2011Applicant: Kyocera CorporationInventor: Hikaru Nekozuka
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Patent number: 8049671Abstract: A diversity antenna for use with a portable host device such as a laptop computer, for example as part of a PCMCIA card pluggable into the laptop computer to enable wireless computer by the laptop computer, includes a main antenna and a diversity antenna. Various configurations for these antennas are possible, including the use of a balanced dipole as the main antenna element and a split diversity antenna for the diversity antenna element. The diversity antenna provides high isolation between the antenna elements and isolation from interfering self-noise generated by the host device.Type: GrantFiled: September 3, 2008Date of Patent: November 1, 2011Assignee: Sierra Wireless, Inc.Inventor: Paul A. Nysen
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Patent number: 8022884Abstract: The invention relates to an antenna that produces a radiation pattern that is axisymmetric about a geometrical axis (X) and exhibits a radiation maximum in a plane perpendicular to the direction of said X axis that includes a feed wire extending along said axis (X) from a first end situated level with a conducting surface forming an earth plane of the antenna to a second end that feeds a set of N radiating strands, N being an integer, characterized in that it also includes at least one earth return rod for the strands, said rod linking one of the radiating strands of the set to the earth plane.Type: GrantFiled: February 1, 2007Date of Patent: September 20, 2011Assignees: STE d Applications Technologiques de l Imagerie Micro-Onde, Centre National d Etudes SpatialesInventors: Patrick Dumon, Luc Duchesne, Marc Le Goff, Nicolas Gross, Philippe Garreau
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Publication number: 20110156971Abstract: A wide band antenna includes a radiation element, a ground surface, a dielectric element, and a RF connector. The radiation element is connected to the ground element and includes a first radiation part and a second radiation part. The first radiation part includes at least one slit for obtaining low frequency-bands. The second radiation part is for obtaining high frequency-bands. The dielectric element supports and spaces the radiation element and the ground element. The RF connector is connected to the second part of the antenna and the ground element.Type: ApplicationFiled: August 31, 2010Publication date: June 30, 2011Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHIH-YUAN YANG, MING-LIANG YANG, WEN-CHIN OU
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Publication number: 20110148722Abstract: The present disclosure relates to a combined and compact monopole and slot antenna providing circular polarization for various applications, such as ultra high frequency (UHF) radio frequency identification (RFID). The antenna of the present invention combines a slot antenna with a monopole antenna using a single feed to drive both, effectively resulting in a circular polarized antenna. In an exemplary embodiment, the antenna may be integrated internally to a mobile device and printed on a flex or a printed circuit board (PCB), made from sheet metal, etc. Advantageously, the design of the antenna provides performance similar to circular polarized patch antennas while avoiding the size, weight, and cost.Type: ApplicationFiled: December 21, 2009Publication date: June 23, 2011Applicant: SYMBOL TECHNOLOGIES, INC.Inventor: David Bellows
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Publication number: 20110050523Abstract: A three-dimensional dual-band antenna including a first radiation portion, a second radiation portion, a connection portion, an impedance matching portion and a feeding portion is provided. The second radiation portion is located under the radiation portion and parallel with the first radiation portion. The connection portion is connected to the first side of the first radiation portion and extended downward vertically, for connecting the first radiation portion and the second radiation portion. The impedance matching portion is connected to a second side of the first radiation portion and extended downward vertically. The first side and the second side are opposite. The feeding portion is connected to the second side and extended downward vertically. The feeding portion receives a feeding signal. The first and the second radiation portion are operated at the first and the second bandwidth respectively, wherein the second bandwidth is in higher frequency than the first bandwidth.Type: ApplicationFiled: August 27, 2010Publication date: March 3, 2011Applicant: ARCADYAN TECHNOLOGY CORPORATIONInventors: Mao-Tse LIANG, Shih-Chieh Cheng, Kuo-Chang Lo
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Patent number: 7899425Abstract: The present invention relates to a wireless communication device, such as a transponder, that has a plurality of antennas for multi-frequency usage. The wireless communication device comprises a control system, communication electronics, memory, and the aforementioned antennas. A wireless communication device having a pole antenna may be used with one or more loop conductor antennas to achieve the desired operating frequencies. A wireless communication device having a dipole antenna may be coupled across a loop conductor antenna to provide different loop conductor configurations depending on the frequency.Type: GrantFiled: February 25, 2009Date of Patent: March 1, 2011Assignee: Mineral Lassen LLCInventor: Ian J. Forster
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Publication number: 20110043421Abstract: An antenna is provided. The antenna includes a radiator, a feed conductor and a ground conductor. The radiator includes a body and a parasitic element. An aperture is formed on the body, and the body encloses the aperture. The parasitic element is connected to the body and extended into the aperture, wherein the parasitic element is connected to the body at a parasitic location. The feed conductor is connected to the body, wherein a signal, fed to the body by the feed conductor, travels on the body, and passes the parasitic location to the parasitic element. The ground conductor is connected to the body.Type: ApplicationFiled: November 24, 2009Publication date: February 24, 2011Applicant: MEDIATEK INC.Inventors: Shih-Wei Hsieh, Shyh-Tirng Fang
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Patent number: 7889134Abstract: Apparatus for suppressing noise and electromagnetic coupling in the printed circuit board of an electronic device includes an upper conductive plate and an array of conductive coplanar patches positioned a distance t2 from the upper conductive plate. The distance t2 is chosen to optimize capacitance between the conductive coplanar patches and the upper conductive plate for suppression of noise or electromagnetic coupling. The apparatus further includes a lower conductive plate a distance t1 from the array of conductive coplanar patches and conductive rods extending from respective patches to the lower conductive plate.Type: GrantFiled: January 26, 2007Date of Patent: February 15, 2011Assignee: Wemtec, Inc.Inventors: William E. McKinzie, III, Shawn D. Rogers
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Publication number: 20110006960Abstract: A tripolar antenna is described having at least two electromagnetic signal transmitting/receiving elements arranged such that their axes of signal transmission/reception sensitivity are not parallel, wherein said elements are provided on or at least partially in a substrate of dielectric material so portions of said at least two elements are coplanar and dielectrically isolated from one another. In a preferred arrangement, two dipoles are provided on the substrate in perpendicular orientation and in the plane containing of the surface of said dielectric material. Most preferably a further third element is provided so as to render the antenna tripolar, said third element comprising a first circular disk element secured to an upper surface of the dielectric material, and a second slightly larger circular disk element, concentrically positioned on the corresponding opposite and lower surface of the dielectric.Type: ApplicationFiled: January 2, 2008Publication date: January 13, 2011Inventors: David J. Edwards, Tong Hao, Wasim Q. Malik, Christopher J. Stevens
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Publication number: 20110006959Abstract: Described are antenna assemblies and methods for forming antenna assemblies. An antenna assembly includes a dual polarized far-field antenna and a near-field loop antenna. The near-field loop antenna is electromagnetically coupled to the dual polarized far-field antenna. The near-field loop antenna includes two contacts for electrically connecting to a chip.Type: ApplicationFiled: July 9, 2009Publication date: January 13, 2011Inventors: Norbert Wilhelm Menko, Stefan Mieslinger, Michael Koher
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Patent number: 7868838Abstract: A wideband antenna includes a ground element comprising an upper first side, a first metal sheet a short arm connecting to the first side of the grounding element and a long arm separated from the first side, a second metal sheet electrically connecting to the first metal sheet, a third metal sheet perpendicular to the second metal sheet, and a slot between the first side of the ground element and the long arm of the first metal sheet; wherein said slot, said second metal sheet and said third metal sheet work together to form an ultra wide resonant frequency.Type: GrantFiled: April 30, 2008Date of Patent: January 11, 2011Assignee: Hon Hai Precision Ind. Co., LtdInventor: Lung-Sheng Tai
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Publication number: 20110001675Abstract: An antenna used in portable electronic devices includes a first antenna unit shaped as a planar inverted-F antenna (PIFA) and a second antenna unit shaped as a loop antenna and connected to the first antenna unit. The first antenna unit receives/sends wireless signals at relatively higher frequencies, the second antenna unit receives/sends wireless signals at relatively lower frequencies, and the first antenna unit is coupled with the second antenna unit to regulate the working frequency band of the antenna.Type: ApplicationFiled: January 29, 2010Publication date: January 6, 2011Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.Inventor: YI-CHIEH LEE
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Patent number: 7835776Abstract: A wireless terminal comprises a ground conductor (1102) and a transceiver coupled to an antenna feed, the antenna feed being coupled directly to the ground conductor (1102). In one embodiment the ground conductor is a conducting case (1102). The coupling may be via a parallel plate capacitor (504) formed by a plate (506) and a surface (1108) of the case (1102). The case (1102) acts as an efficient, wideband radiator, eliminating the need for a separate antenna. In a modification of this embodiment a slot (1112) is provided to increase the resistance of the case (1102) as seen by the transceiver, thereby increasing the radiating bandwidth of the terminal.Type: GrantFiled: July 25, 2001Date of Patent: November 16, 2010Assignee: NXP B.V.Inventors: Kevin R. Boyle, Peter J. Massey, Roger Hill