Plural Diverse-type Antennas Using Same Active Element Patents (Class 343/729)
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Publication number: 20100283693Abstract: A wireless terminal antenna is disclosed. The antenna includes a pull rod, a pull rod pedestal located at the base of the pull rod, and a spiral coil. One end of the spiral coil is electrically connected with the pull rod pedestal. The pull rod is axially retractable along the pull rod pedestal until it is retracted into the space enclosed by the spiral coil. At idle time, the pull rod is nested inside the spiral coil so that it is short and portable. When receiving signals normally, the pull rod can be pulled out. The antenna is miniaturized, portable, and provides good performance.Type: ApplicationFiled: June 28, 2010Publication date: November 11, 2010Applicant: HUAWEI DEVICE CO., LTD.Inventors: Yanping XIE, Shaoqing CHEN, Ping LEI, Yongling BAN, Shuhui SUN, Yao LAN
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Publication number: 20100238079Abstract: A multiple input-multiple output antenna assembly with high isolation between the antennas is disclosed. The antenna assembly includes a substrate with a ground layer at its surface. Two antennas are disposed opposing each other on the substrate. A meandering slot is interposed between the first and second antennas on the ground plane. A first signal port is provided for applying a first signal to excite the first antenna and a second signal port is provided for applying a second signal to excite the second antenna. The meandering slot provides isolation that inhibits electromagnetic propagation between the first and second antennas. A third signal port is provided for applying a third signal to excite the meandering slot to act as another antenna for multiple input, multiple output operation.Type: ApplicationFiled: May 10, 2010Publication date: September 23, 2010Inventors: Mina Ayatollahi, Qinjiang Rao
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Publication number: 20100231471Abstract: An antenna for use near a semi-conducting material, such as at a living body, the antenna comprising a first portion and a second portion, the first portion being constituted by a whip antenna and the second portion being constituted by a loop antenna.Type: ApplicationFiled: September 17, 2008Publication date: September 16, 2010Inventor: Arild Haglund
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Patent number: 7773040Abstract: A dual-band antenna includes a planar conductive layer comprising a conductive region and a central non-conductive region. The conductive region and the non-conductive region together define a pair of interconnected F-slot structures, and a loop strip structure coupled to and disposed around the F-slot patch slot antenna structures.Type: GrantFiled: March 19, 2007Date of Patent: August 10, 2010Assignee: Research In Motion LimitedInventors: Qinjiang Rao, Geyi Wen, Dong Wang, Mark Pecen
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Patent number: 7760150Abstract: An object of the invention is to provide an antenna apparatus whose directional characteristic can be switched 90 degrees conforming to the communication mode at the same time as the frequency band can be switched in response to the communication mode for application to a multiband radio for covering different communication modes such as voice communications and data communications, and a radio using the antenna apparatus. An antenna apparatus 1 of the invention includes linear radiator 2, 3; a first linear director 4; and first and second linear conductors 5 and 6 connected at one end to the radiator 2, 3and at an opposite end to the first director 4 through switches 7.Type: GrantFiled: April 14, 2005Date of Patent: July 20, 2010Assignee: Panasonic CorporationInventor: Junji Sato
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Patent number: 7755554Abstract: An antenna (100) disposed on a first substrate (10) and a second substrate (20) includes a feeding portion (110) and a radiating portion (120). The feeding portion (110) is disposed on a first surface of the first substrate (10), for feeding electromagnetic signals. The radiating portion (120) connected to the feeding portion (110) for transceiving electromagnetic signals includes a first radiator (121), a second radiator (122) and a third radiator (123). The first radiator (121) is disposed on the first surface and connected to the feeding portion (110). The second radiator (122) is disposed on a second surface of the second substrate (20). The third radiator (123) includes a first cylinder portion (1231) and a second cylinder portion (1232) connected to the first cylinder portion (1231). The first cylinder portion (1231) and the second cylinder portion (1232) are connected to the first radiator (121) and the second radiator (122), respectively.Type: GrantFiled: June 30, 2008Date of Patent: July 13, 2010Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Yen-Yi Shih
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Publication number: 20100164820Abstract: Disclosed is an antenna which has a simple structure and a small null angle, and which can achieve communication using a circularly-polarized wave. The antenna includes a conductive wire which is arranged in loops in such a way as to form a cross shape. The 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: ApplicationFiled: February 29, 2008Publication date: July 1, 2010Inventors: Mayumi Matsunaga, Yasuhiro Yokota
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Patent number: 7737901Abstract: A multi-band antenna, made by an integral plate and comprises a radiating element, a grounding element, a slit formed as part of the plate, and a feeding line; wherein horizontal conductive portion of said plate are separated from each other with said slit between them and serve as the radiating element and the ground element respectively; the feeding line, comprising an inner conductor connected with the radiating element and an outer conductor connected with the grounding element; wherein said radiating element comprising at least two radiating portions defining at least one radiating arm with gradually increasing width, and at least two radiating portion cooperatively acting to achieve a Ultra Wide Band antenna.Type: GrantFiled: July 3, 2007Date of Patent: June 15, 2010Assignee: Hon Hai Precision Ind. Co., LtdInventors: Wen-Fong Su, Hsien-Sheng Tseng, Shang-Jen Chen, Lung-Shena Tai
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Publication number: 20100127944Abstract: 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: ApplicationFiled: May 2, 2007Publication date: May 27, 2010Inventor: Richard Breiter
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Publication number: 20100052859Abstract: In a transponder having an electronic memory chip and a magnetic ring antenna is provided that the ring antenna comprises an electrically conductive coil having at least one turn, and a capacitor, wherein the capacitor exhibits, as a dielectric, a thin insulator foil that simultaneously serves as a substrate foil for the coil and/or the chip.Type: ApplicationFiled: June 21, 2007Publication date: March 4, 2010Applicant: DYNAMIC SYSTEMS GMBHInventor: Harald Lossau
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Publication number: 20100026595Abstract: In an antenna device having a coil element 11 composed of metallic wire that is connected to a power feeding point by causing one end portion to be coupled to a caulking portion 13-1 of a power feeding plate 13 connected to the power feeding point on a circuit board 1, a plate element section 13-2 is constructed using a part of the power feeding plate 13 when an antenna element whose element length is different from that of the coil element 11 is added. This makes it possible to obtain the antenna device that can achieve a wider bandwidth while restraining the number of parts and a cost from being increased.Type: ApplicationFiled: November 5, 2007Publication date: February 4, 2010Inventors: Hisashi Kondo, Nobuya Harano
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Patent number: 7642977Abstract: An extendable built-in antenna unit for a mobile device is disclosed that includes a whip antenna, a helical antenna, an antenna receiving part and an intenna pattern. The helical antenna may be extractably and retractably mounted in the antenna receiving part. The whip antenna may be extractably and retractably mounted in the helical antenna. The helical antenna and the intenna pattern may be formed with lengths determined according to the resonance frequency.Type: GrantFiled: February 21, 2007Date of Patent: January 5, 2010Assignee: Samsung Electronics Co., LtdInventor: Sung In Seo
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Patent number: 7623835Abstract: 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: August 31, 2006Date of Patent: November 24, 2009Inventor: Ian J Forster
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Patent number: 7620421Abstract: In addition to an FM reception antenna element for receiving an FM radio wave and an FM receiver connected to the FM reception antenna element, a mobile object is provided with a first antenna element for receiving a satellite signal, a signal processing unit connected to the first antenna, and a second antenna element connected to the signal processing unit. The signal processing unit processes the satellite signal into an FM signal. The second antenna element emits the FM signal as the FM radio wave that may be received in the FM reception antenna and processed by the FM receiver in the manner known in the art.Type: GrantFiled: December 29, 2004Date of Patent: November 17, 2009Assignee: Mitsumi Electric Co., Ltd.Inventors: Takao Kato, Junichi Noro, Akira Miyoshi, Toshiaki Aizawa
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Patent number: 7616160Abstract: An electronic device and a related antenna module for integrating GPS signals and digital mobile television signals are provided. With variances of both frequency domains and bandwidths between GPS signals and digital mobile television signals in the VHF and UHF bands, said signals may be transmitted inside the electronic device with different paths without interfering with each other.Type: GrantFiled: May 17, 2007Date of Patent: November 10, 2009Assignee: Wistron CorporationInventor: Yin-Yu Chen
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Patent number: 7613482Abstract: A hybrid wireless network system is disclosed. The hybrid wireless network system includes an antenna array, an analog subsystem, and a digital subsystem. The antenna array at least includes two antenna elements. In the case of using multiple antenna elements to extend link range and coverage, a coarse-fine method is included for antenna elements selection. The analog subsystem calculates a difference signal and a sum signal based on the two RF signals. The analog subsystem includes step leveling devices. The digital subsystem estimates a direction-of-arrival (DOA) based on the sum signal and the difference signal. The step-leveling devices receive weights from the digital subsystem, in form of a feedback control, to apply the weights on the two RF signals respectively. The digital subsystem repetitively calculates new weights to update a beam pattern formed by the two RF signals until the DOA approaches null.Type: GrantFiled: December 8, 2005Date of Patent: November 3, 2009Assignee: Accton Technology CorporationInventor: I-Ru Liu
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Publication number: 20090267847Abstract: A composite antenna apparatus is disclosed. A rod member accommodates a first antenna element and a second antenna element therein. A base member accommodates a circuit board therein. A connector couples an end portion of the rod member and the base member. The connector includes a first conductive member configured to transmit a first signal received by the first antenna element to the circuit board therethrough, and a second conductive member configured to transmit a second signal received by the second antenna element to the circuit board therethrough.Type: ApplicationFiled: April 22, 2009Publication date: October 29, 2009Inventors: Kyuichi SATO, Junichi NORO, Takeshi IIZUKA
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Publication number: 20090231221Abstract: A rod antenna and a method for operating the rod antenna. The rod antenna includes a two-dimensional patch for radiating and/or receiving an electromagnetic wave, the patch extending along a plane defined by two coordinate axes orthogonal to each other. A feeding line is coupled to the patch for transferring signal energy to and/or from the patch, and a dielectric rod radiates and/or receives the electromagnetic wave, the rod extending longitudinally from the patch in direction of a third coordinate axis outside of the plane defined by the first two coordinate axes. A metal holder is coupled to the patch and to the rod for transferring the electromagnetic wave between the patch and the rod.Type: ApplicationFiled: December 19, 2005Publication date: September 17, 2009Applicant: Sony Deutschland GmbHInventors: Kao-Cheng Huang, Zhaocheng Wang, Vladimir Nikolajevic
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Patent number: 7535423Abstract: A multiple-band monopole coupling antenna includes a dielectric board, a low frequency antenna and a high frequency antenna. The low frequency antenna and the high frequency antenna are located on the front of the dielectric board. The length of the low frequency antenna equals to the half length of the low frequency waves and can receive and transmit two low frequency waves and a high frequency wave. The length of the high frequency antenna equals to the quarter length of the high frequency waves. The high frequency antenna is adjacent to the low frequency antenna and couples with the low frequency antenna while the low frequency antenna is receiving or transmitting signal. Thus, the high frequency antenna can receive and transmit three high frequency waves. The multiple-band monopole coupling antenna can receive and transmit all frequency bands, which are used in the mobile communication.Type: GrantFiled: October 25, 2006Date of Patent: May 19, 2009Assignee: Cheng Uei Precision Industry Co., Ltd.Inventors: Ching-Chi Lin, Kai Shih, Yu-Yuan Wu
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Patent number: 7486975Abstract: An antenna device includes a plurality of radiation elements, at least one or more reactance elements, and a changeover switcher for selectively switching over between one circuit pattern forming a first-type antenna such as a diversity antenna where a predetermined one of the plural radiation elements is used as a feed element, and another circuit pattern forming a second-type antenna such as an ESPAR antenna where one of the plural radiation elements is used as a feed element while the reactance elements are connected to the other radiation element. According to this antenna device, the receiving sensitivity can be improved by using a reduced number of radiation elements in a mobile communication apparatus such as a cellular telephone.Type: GrantFiled: June 21, 2004Date of Patent: February 3, 2009Assignee: Sony CorporationInventor: Kohei Mori
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Patent number: 7358848Abstract: An integrated circuit implements a wireless remote sensor. The wireless remote sensor includes an antenna coupled to an energy distribution unit to allow passive collection of electrical charge. A signal processing unit couples to the energy distribution unit and modulates transmission by the antenna according to a binary code.Type: GrantFiled: April 25, 2003Date of Patent: April 15, 2008Inventor: Farrokh Mohamadi
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Patent number: 7352332Abstract: Multiple disparate wireless units sharing of antennas are described herein. In one embodiment, an apparatus includes, but is not limited to, a first wireless communication unit of a first wireless communication standard, where the first standard includes selecting one of two antennas provided. The apparatus further includes a second wireless communication unit of a second wireless communication standard, where a first antenna and a second antenna are shared by the first and second communication units. Other methods and apparatuses are also described.Type: GrantFiled: September 22, 2005Date of Patent: April 1, 2008Assignee: OQO, Inc.Inventors: Jonathan Betts-LaCroix, Mike Furlotti
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Publication number: 20080055172Abstract: An electronic device and a related antenna module for integrating GPS signals and digital mobile television signals are provided. With variances of both frequency domains and bandwidths between GPS signals and digital mobile television signals in the VHF and UHF bands, said signals may be transmitted inside the electronic device with different paths without interfering with each other.Type: ApplicationFiled: May 17, 2007Publication date: March 6, 2008Inventor: Yin-Yu Chen
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Patent number: 7324055Abstract: An antenna device includes a seat, a longitudinal antenna member having a lower portion disposed on the seat, and a cylindrical antenna member having a lower portion disposed on the seat and having a chamber formed by an outer peripheral wall, and the longitudinal antenna member is disposed in the chamber of the cylindrical antenna member and spaced from the outer peripheral wall of the cylindrical antenna member for a distance, and the longitudinal antenna member includes an upper portion extended outwardly beyond the cylindrical antenna member. The antenna members may be used for receiving and transmitting signal of different frequencies.Type: GrantFiled: April 25, 2006Date of Patent: January 29, 2008Assignee: Joymax Electronics Co., Ltd.Inventor: Tze Chung Wan
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Publication number: 20080012777Abstract: An integrated broadband antenna device with wide band function is disclosed. The antenna device comprises a ground plate, a feeding wire, a first metal radiator, a second metal radiator, a ground metal radiator and a parasitic metal radiator. The first metal radiator is connected with the positive ends of signals of the feeding wire for transmitting electric signals and producing a high frequency mode. The first metal radiator is coupled to and energizes the second metal radiator and the parasitic metal radiator, and then the two metal radiator producing a low frequency mode and a second high frequency mode along with the ground metal radiator obtains a wider bandwidth. The broadband antenna device integrating various kinds of antennas is able to have a enough bandwidth to meet the requirements of AMPS (824˜894 MHz), GSM (880˜960 MHz), GPS (1575 MHz), DCS (1710˜1880 MHz), PCS (1850˜1990 MHz), UMTS (1920˜2170 MHz) and Wi-Fi (2400˜2500 MHz).Type: ApplicationFiled: January 11, 2007Publication date: January 17, 2008Inventors: Yu-Ching Lin, Tsung-Wen Chiu, Fu-Ren Hsiao, Chun-Ching Lan, Yun-Fan Bai
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Patent number: 7307588Abstract: A planar antenna, which is operable within the ultra wide bandwidth, includes a dielectric substrate, an elliptical radiating element, a feeding element, and a grounding element. The dielectric substrate has opposite first and second surfaces. The elliptical radiating element is formed on the first surface of the dielectric substrate, and has major and minor axes. The ratio of the major axis to the minor axis is between 1.25 and 1.7. The feeding element is formed on the first surface of the dielectric substrate, and is coupled to the radiating element. The grounding element is formed on the second surface of the dielectric substrate, and is coupled to the feeding element.Type: GrantFiled: November 16, 2005Date of Patent: December 11, 2007Assignee: Universal Scientific Industrial Co., Ltd.Inventor: Kuo-Hua Tseng
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Patent number: 7292192Abstract: An antenna system mounted in a portable terminal has a main antenna for transmitting and receiving a radio wave signal, wherein the main antenna is contained in a body of the portable terminal in a first mode of the portable terminal and is pulled out from a body of the portable terminal in a second mode of the portable terminal; and a sub-antenna for performing diversity reception of a radio wave signal, wherein when a state of the main antenna is switched depending on whether the portable terminal is in the first mode or the second mode, constitution of the main antenna and constitution of the sub-antenna are varied so that directivities of the main antenna and the sub-antenna compensate each other. Typically, the main antenna is a whip antenna having a helical antenna and a linear antenna, and a sub-antenna element is provided.Type: GrantFiled: September 7, 2005Date of Patent: November 6, 2007Assignee: Kyocera CorporationInventor: Sota Aritake
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Patent number: 7280799Abstract: A wireless communication device repeater includes two antennas coupled to a bi-directional gain stage. A gain control system is coupled to the gain stage and adjusts the gain of the gain stage based on oscillation events.Type: GrantFiled: August 18, 2004Date of Patent: October 9, 2007Assignee: Broadlink Research Inc.Inventors: Hamid Najafi, Fred Judson Heinzmann
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Patent number: 7242917Abstract: An apparatus and method of for attaching an antenna to a mobile communication device. The apparatus can include radio frequency generation circuitry, a radio frequency feed point coupled to the radio frequency generation circuitry, a direct current voltage source coupled to the radio frequency feed point, and an antenna detection module coupled to the radio frequency feed point and the direct current voltage source. The antenna detection module is configured to detect a type of antenna coupled to the radio frequency feed point based on a detected direct current voltage. The antenna detection module can be coupled to the radio frequency feed point and a ground contact point. The apparatus can additionally include a parameter of operation adjustment module coupled to the antenna detection module. The adjustment circuitry can be configured to adjust a parameter of operation of the mobile communication device.Type: GrantFiled: November 5, 2002Date of Patent: July 10, 2007Assignee: Motorola Inc.Inventors: Aamir Abbasi, Roger Harmon
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Patent number: 7236750Abstract: Techniques to correct for phase and amplitude mismatches in a radio device in order to maintain channel symmetry when communicating with another device using MIMO radio communication techniques. Correction for the amplitude and phase mismatches among the plurality of transmitters and plurality of receivers of a device may be made at baseband using digital logic (such as in the modem) in the receiver path, the transmitter path or both paths of that device. In a device, amplitude and phase offsets are determined among the plurality of radio transmitter and radio receiver paths by measuring phase and amplitude responses when supplying a signal to a transmitter in a first antenna path of the device and coupling the radio signal from a first antenna to a second antenna path of that device where the signal is downconverted by a receiver associated with the second antenna path, and similarly coupling a signal from the second antenna path to the first antenna path.Type: GrantFiled: June 2, 2004Date of Patent: June 26, 2007Assignee: IPR Licensing Inc.Inventors: Chandra Vaidyanathan, Gary L. Sugar
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Patent number: 7231237Abstract: A wireless communication device (200) is provided, the wireless communication device (200) can include at least one antenna (240), the antenna (240) positioned beneath the face plate (252) and base plate (255) of a user interface (245) of the wireless communication device (200) in which the antenna (240) can be configured to communicate with a signal source.Type: GrantFiled: August 31, 2005Date of Patent: June 12, 2007Assignee: Motorola, Inc.Inventors: Christos L. Kinezos, Jan-Ove U. Mattsson, Lorenzo A. Ponce De Leon
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Patent number: 7176838Abstract: A multi-band antenna (10) includes one or more a loop portions (12) substantially defining operation in frequency ranges covering between approximately 800 MegaHertz and approximately 1.0 GigaHertz and between approximately 1.8 GigaHertz and approximately 2.0 GigaHertz, a surface plate portion (14) having a length (15) substantially defining operation in a frequency range between approximately 1.7 GigaHertz and approximately 1.9 GigaHertz, and a slot (16) within the surface plate portion having a length (17) substantially defining operation in a frequency range between 5 and 6 Gigahertz (WLAN). The antenna can further include a resonant stub (18) having a length (19) substantially defining operation in a frequency range of approximately 2.4 Gigahertz. The antenna can be a unitary radiating element having a feed element (9) and a ground port (7). Operationally, the antenna can function in 6 bands and can be independently tunable in a majority of the 6 bands.Type: GrantFiled: August 22, 2005Date of Patent: February 13, 2007Assignee: Motorola, Inc.Inventor: Christos L. Kinezos
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Patent number: 7145518Abstract: A multiple-frequency common antenna has a first substrate sheet and a second substrate sheet respectively structured by an HIP consisting of a metal plate, small metal plates disposed in two dimensions and linear metal bars connecting these elements. The antenna restricts propagation of surface currents of the first and second frequency bands which are not overlapping with each other. An inverse L-shape antenna and a monopole antenna which are fed with a center conductor and an external conductor of the coaxial line respectively operate as the antenna on the first substrate sheet in the first frequency band and second frequency band. The second substrate sheet does not propagate the radiated wave of the monopole antenna, thereby avoiding unwanted re-radiation.Type: GrantFiled: September 30, 2003Date of Patent: December 5, 2006Assignees: Denso Corporation, Rockwell Scientific CompanyInventors: Makoto Tanaka, Kazuoki Matsugatani, Hao Xin
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Patent number: 7127218Abstract: A scanning antenna diversity system for mobile FM radio having an antenna system with controllable logic switch, wherein a different high-frequency reception signal is passed to a receiver. An IF signal turns on a diversity processor, which switches the logic switch into a different switching position in response to reception interference. The diversity processor has two interference detectors whose signals are passed to a logic circuit for evaluation and to produce a logic control signal, so that a different switching positions are selected at the earliest possible time after the occurrence of interference in the reception signal.Type: GrantFiled: January 30, 2004Date of Patent: October 24, 2006Assignee: Fuba Automotive GmbH & Co. KGInventor: Heinz Lindenmeier
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Patent number: 7123203Abstract: Each of the strands being powered by a single conducting wire wherein each of these strands describes an initial segment which is radial relative to a geometric axis perpendicular to the main plane, each of the strands is extended along a circle arc center on this geometric axis and describes a substantially radial segment, directed in the direction of the geometric axis, thus running alongside radial segment directed in a direction of the geometric axis thus running alongside a radial segment of a neighbouring strand without touching the neighbouring strand.Type: GrantFiled: June 20, 2003Date of Patent: October 17, 2006Assignees: Centre National d'Etudes Spatiales, Ste d'Applications Technologiques de l'Imagerie Micro OndesInventors: Marc Le Geoff, Luc Duchesne, Jean-Marc Française Baracco, Patrick Dumon
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Patent number: 7091917Abstract: A complex antenna apparatus including a base, a circular polarization antenna and a capacitance (inductance) cylinder loading monopole antenna. The base has a central through hole. The circular polarization antenna is disposed on the base and has a hollow feeding portion corresponding to the central through hole. The capacitance (inductance) cylinder loading monopole antenna is fixed on the base by inserting one end of the capacitance (inductance) cylinder loading monopole antenna into the central through hole.Type: GrantFiled: July 28, 2003Date of Patent: August 15, 2006Assignee: Wistron NeWeb Corp.Inventors: Cheng-Geng Jan, Shun-Chung Kuo
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Patent number: 7081853Abstract: A mobile communication terminal comprises a first antenna element and a second antenna element. The first antenna element is arranged over the surface of the circuit substrate contained in the terminal cabinet, the surface being located remotest from the ear of the speaker on the phone. The second antenna element is arranged over the remotest surface and adapted to be pulled in the inside of the terminal cabinet or extended from the terminal cabinet, the second antenna element being electromagnetically coupled with one of the ends of the first antenna element in a state of being extended from the terminal cabinet.Type: GrantFiled: March 13, 2003Date of Patent: July 25, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Amano, Hiromichi Suzuki, Norimichi Chiba
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Patent number: 7031669Abstract: Techniques to correct for phase and amplitude mismatches in a radio device in order to maintain channel symmetry when communicating with another device using MIMO radio communication techniques. Correction for the amplitude and phase mismatches among the plurality of transmitters and plurality of receivers of a device may be made at baseband using digital logic (such as in the modem) in the receiver path, the transmitter path or both paths of that device. In a device, amplitude and phase offsets are determined among the plurality of radio transmitter and radio receiver paths by measuring phase and amplitude responses when supplying a signal to a transmitter in a first antenna path of the device and coupling the radio signal from a first antenna to a second antenna path of that device where the signal is downconverted by a receiver associated with the second antenna path, and similarly coupling a signal from the second antenna path to the first antenna path.Type: GrantFiled: June 9, 2003Date of Patent: April 18, 2006Assignee: Cognio, Inc.Inventors: Chandra Vaidyanathan, Gary L. Sugar
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Patent number: 7002526Abstract: A man-portable wearable antenna system to be worn by a wearer. The wearable antenna system comprises a helmet antenna, a vest antenna worn around the torso, a body antenna worn along the entire body, and a means for routing signals between one of the antennas and a communication device.Type: GrantFiled: August 26, 2004Date of Patent: February 21, 2006Assignee: The United States of America as represented by the Secretary of the NavyInventors: Richard C. Adams, Robert J. O'Neil, Jovan E. Lebaric, Todd R. Emo
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Patent number: 6999028Abstract: An antenna design for radio frequency identification (“RFID”) tags. More particularly, the present invention relates to design for RFID tags particularly operating in the ultra high frequency (“UHF”) operating band.Type: GrantFiled: December 23, 2003Date of Patent: February 14, 2006Assignee: 3M Innovative Properties CompanyInventor: William C. Egbert
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Patent number: 6992641Abstract: A wireless telecommunications device is disclosed including a first antenna element for transmitting and receiving a first wireless telecommunications signal and a second antenna element for transmitting and receiving a second wireless telecommunications signal. A radio transceiver is provided for generating the first and second wireless telecommunications signals. The radio transceiver is configured for generating the first and second wireless telecommunications signals on substantially the same wireless band in such a way as to produce phase cancellation along a predetermined boundary. Preferably, the predetermined boundary is a plane of symmetry between the first and second antenna elements.Type: GrantFiled: October 27, 2003Date of Patent: January 31, 2006Assignee: Cisco Technology, Inc.Inventor: John Sanelli
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Patent number: 6975834Abstract: 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: October 3, 2000Date of Patent: December 13, 2005Assignee: Mineral Lassen LLCInventor: Ian J. Forster
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Patent number: 6973307Abstract: A system and method for providing a global positioning system (GPS) enabled antenna system are provided. The GPS enabled antenna may be used, for example, on a wireless communications device such as a wireless handset. The wireless communications device includes a GPS switching module coupled to a conventional communications antenna, including its associated circuitry. The GPS switching module is adapted to selectively couple the communications antenna to GPS matching circuitry. In this arrangement, the GPS matching circuitry adjusts impedance at approximately 1575 MHz to more closely match the communications antenna to GPS circuitry in the wireless device.Type: GrantFiled: March 7, 2005Date of Patent: December 6, 2005Assignee: Kyocera Wireless Corp.Inventor: Timothy David Forrester
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Patent number: 6956532Abstract: A multiband phased array antenna includes a substrate, and dipole element arrays extending outwardly from an imaginary center point on the substrate. Each dipole element array includes dipole antenna elements arranged in end-to-end relation and having a dipole size different than a dipole size of dipole antenna elements of at least one other dipole element array. A ground plane is adjacent the dipole element arrays, and a spacing between the dipole element arrays and the ground plane is different between the dipole element arrays having different size dipole antenna elements. The ground plane has a plateau shape for providing the different spacing between the dipole element arrays.Type: GrantFiled: November 6, 2003Date of Patent: October 18, 2005Assignee: Harris CorporationInventors: Timothy E. Durham, Mark Vanstrum, Anthony M. Jones, Griffin K. Gothard
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Patent number: 6954179Abstract: A phased array antenna includes a substrate, and dipole element arrays extending outwardly from an imaginary center point on the substrate. Each dipole element array includes dipole antenna elements arranged in an end-to-end relation and has different dipole sizes for dipole antenna elements in a direction extending outwardly from the imaginary center point. The different spacing between the ground plane and the dipole element arrays increases from the imaginary center point towards an edge of the substrate.Type: GrantFiled: November 6, 2003Date of Patent: October 11, 2005Assignee: Harris CorporationInventors: Timothy E. Durham, Griffin K. Gothard, Anthony M. Jones
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Patent number: 6940463Abstract: An ultra-wideband antenna for operating in a frequency is disclosed wherein a monopole antenna extends from a ground plane. The monopole has an effective length L of one quarter wavelength at the lowest frequency f1. A dielectric resonator antenna (DRA) surrounds the monopole antenna for resonating at substantially between or at two and three times the lowest frequency f1, the DRA is of a height of less than ¾ L and is disposed in such a manner as being above the ground plane and either contacting or spaced therefrom by a gap G, wherein 0?G?0.2 H. The ultra-wideband antenna is of a much greater bandwidth than the sum of bandwidth of the monople or the DRA alone.Type: GrantFiled: July 24, 2003Date of Patent: September 6, 2005Assignee: Her Majesty the Queen in Right of Canada, as represented by the Minister of Industry, through the Communications Research Centre CanadaInventors: Apisak Ittipiboon, Aldo Petosa, Soulideth Thirakoune, David Lee, Marc Lapierre, Yahia Autar
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Patent number: 6924770Abstract: Modular external antenna assemblies are configured to releaseably attach to wireless terminals and replace internal antennas.Type: GrantFiled: July 25, 2003Date of Patent: August 2, 2005Assignee: Sony Ericsson Mobile Communications ABInventors: W. Kevin Carpenter, William Tolbert
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Patent number: 6919845Abstract: In an apparatus for measuring a specific absorption rate (SAR) for use in a radio apparatus, a first near magnetic field of a radio wave radiated from a reference radio apparatus is measured in free space, and an SAR of the radio wave radiated from the reference radio apparatus by using a predetermined phantom according to a predetermined measurement method. A transformation factor ? is calculated by dividing the measured SAR by a square value of the measured first near magnetic field, and a second near magnetic field of a radio wave radiated from a radio apparatus to be measured is measured in free space. Then an SAR of the radio wave radiated from the radio apparatus to be measured is estimated and calculated by multiplying a square value of the measured second near magnetic field by the calculated transformation factor ?.Type: GrantFiled: April 22, 2003Date of Patent: July 19, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Ozaki, Koichi Ogawa, Yoshio Koyanagi, Yutaka Saito, Shoichi Kajiwara, Yoshitaka Asayama, Atsushi Yamamoto
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Patent number: 6917339Abstract: Antennas of broadband and multi-band operation are presented. A broadband planar antenna includes two inverted-L antennas (ILAs) facing each other across a gap. One of the ILAs is input fed, and the other is electromagnetically coupled. The positioning of the gap affects the bandwidth. A dual-band planar antenna includes two ILAs facing each other across a gap with one of the ILAs being input fed, and the other being coupled. This dual-band planar antenna also includes a monopole antenna disposed between the two ILAs. A triple-band planar antenna includes two ILAs facing each other across a gap with one of the ILAs being input fed and the other IPA being coupled. This triple-band antenna also includes a monopole antenna disposed between the two ILAs, and a conductor extending horizontally from the monopole antenna towards, but not reaching the coupled ILA. Another dual-band antenna includes an inner cut loop antenna encompassed by an outer cut loop antenna.Type: GrantFiled: September 25, 2003Date of Patent: July 12, 2005Assignee: Georgia Tech Research CorporationInventors: RongLin Li, Emmanouil M. Tentzeris, Joy Laskar
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Patent number: 6903697Abstract: Film antennas which are stuck to a front glass of a vehicle is of such a structure that a plurality of antenna elements are formed on a film substrates. Amplifiers are disposed at pillar parts, and in the vicinity of power supply points to the antenna elements grounding to a high-frequency component by high-frequency grounding members are carried out. The high-frequency grounding members can be fixed simply by sticking them on a coating film etc. for covering an exterior part of a vehicle body, and a work of peeling the coating film becomes unnecessary, and therefore, it is possible to easily carry out a work which comes up with antenna installation to a vehicle. Grounding to a direct current component is carried out, away from the power supply points through DC earth in the vicinity of a selector and a receiver.Type: GrantFiled: December 4, 2003Date of Patent: June 7, 2005Assignee: Fujitsu Ten LimitedInventor: Kazushige Ogino