With Parasitic Element (e.g., Reflector Or Director) Patents (Class 343/818)
  • Patent number: 10693211
    Abstract: A method for controlling the lengths of length adjustable elements of an antenna includes engaging a motor drive assembly coupled to each length adjustable element and in response to signals from a motor controller for adjusting the length of the length-adjustable antenna elements to element lengths provided by element length tables coupled to the motor controller, running antenna modeling software coupled to the motor controller to generate antenna performance data as a function of antenna element lengths, and driving the motor controller for each motor drive assembly from data in the element length tables to adjust the lengths of the length-adjustable elements in response to commands entered into a user interface or commands generated by the antenna modeling software running in the processor.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: June 23, 2020
    Assignee: SteppIR Communications Systems Inc.
    Inventor: Michael E. Mertel
  • Patent number: 10601111
    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A terminal is provided. The terminal includes a metal bezel disposed along an edge of the terminal, an antenna incorporated into the terminal and configured to emit electronic waves, and a beam forming auxiliary unit incorporated into the terminal, separately disposed by a predetermined distance from the antenna, and configured such that the electronic waves emitted from the antenna pass through the metal bezel.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 24, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seungtae Ko, Jungsuek Oh, Youngju Lee
  • Patent number: 10574310
    Abstract: A communication system utilizing reconfigurable antenna systems is described where beam steering and null forming techniques are incorporated to limit the region or volume available for communication with client devices. The communication system described restricts communication to defined or desired area and degrades signal strength coverage outside of a prescribed region. An algorithm is used to control the antenna system to monitor and control antenna system performance across the service area. This antenna system technique is applicable for use in communication systems such as a Local Area Network (LAN), cellular communication network, and Machine to Machine (M2M).
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: February 25, 2020
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Olivier Pajona
  • Patent number: 10418718
    Abstract: Various embodiments of antenna assemblies are disclosed herein. In one embodiment, the antenna assembly includes a reflector comprising a center opening, a feed-antenna subassembly situated in front of the reflector, a rear housing situated behind the reflector, and a pole-mounting bracket comprising a base plate situated between the reflector and the rear housing. The feed-antenna subassembly comprises a feed tube that houses at least one of: a transmitter circuit and a receiver circuit. The rear housing is coupled to a front side of the reflector via the center opening. The rear housing comprises a center cavity, and a back end of the feed tube is inserted in and coupled to the center cavity. The base plate is coupled to the reflector and the rear housing in such a way that decoupling between the base plate and the reflector requires a prior decoupling between the feed-antenna subassembly and the rear housing and a prior decoupling between the rear housing and the reflector.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 17, 2019
    Assignee: Ubiquiti Networks, Inc.
    Inventors: Jude Lee, Gerardo Huerta
  • Patent number: 10200069
    Abstract: In one embodiment, an antenna system performance metric for a tunable antenna system comprising tunable impedance elements is identified. The tunable impedance elements are simulated as uniquely numbered lumped ports characterizing a port network with a corresponding admittance or impedance matrix. The admittance or impedance matrix can be approximated using the periodicity of the tunable antenna system and the S-matrix of the port network can be estimated using the approximated admittance or impedance matrix. An optimal configuration of the tunable antenna system with respect to the antenna system performance metric is identified from responses of the tunable antenna system to variable impedances using the S-matrix. The optimal configuration of the tunable antenna system includes impedances of the tunable impedance elements modeled as the lumped ports in the port network.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: February 5, 2019
    Assignee: THE INVENTION SCIENCE FUND I, LLC
    Inventor: Yaroslav A. Urzhumov
  • Patent number: 10116063
    Abstract: Exemplary embodiments are provided of internally fed directional folded Yagi antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes a boom, a cable assembly, and a plurality of dipole elements spaced apart along the boom. The dipole elements include a folded dipole element. The feed cable assembly is internally fed inside the boom and a first section of the folded dipole element.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: October 30, 2018
    Assignee: LAIRD TECHNOLOGIES, INC.
    Inventors: Rafael Haro, Alejandro Manuel Mascorro, Sajid Ali Safvi, Benjamin Peter Hoffman
  • Patent number: 10103424
    Abstract: An electronic device may be provided with wireless circuitry. The wireless circuitry may include one or more antennas. The antennas may include phased antenna arrays each of which includes multiple antenna elements. Phased antenna arrays may be formed from printed circuit board Yagi antennas or other antennas. A millimeter wave transceiver may use the antennas to transmit and receive wireless signals. The antennas may be mounted at the corners of an electronic device housing or elsewhere in an electronic device. An electronic device housing may be formed from metal and may have an opening filled with dielectric. The antennas may be aligned with portions of the dielectric. Printed circuit board antennas may have reflectors, radiators, and directors. The reflectors, radiators, and directors may be arranged to align radiation patterns for the antennas with the plastic-filled slots or other dielectric regions in the metal housing.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: October 16, 2018
    Assignee: Apple Inc.
    Inventors: Basim Noori, Ming-Ju Tsai, Boon Wai Shiu, Matthew A. Mow, Yuehui Ouyang, Mattia Pascolini, Ruben Caballero
  • Patent number: 10020590
    Abstract: Bracket structures that structurally support and enhance the performance of millimeter-wave tapered-slot end-fire antennas for use in vehicular radar systems. The system includes a first longitudinal rib and a second longitudinal rib, each defining a first longitudinal slot and having a transmission end and a chip connection end. The system includes a crossbeam coupled to the first longitudinal rib and the second longitudinal rib. The system includes a first end-fire antenna having a transmission end that is received by the first longitudinal slot and a chip connection end. The first end-fire antenna is designed to transmit a first signal having a first phase. The system includes a second end-fire antenna having a transmission end that is received by the second longitudinal slot and a chip connection end. The second end-fire antenna is designed to transmit a second signal having a second phase that is different than the first phase.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: July 10, 2018
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Paul D. Schmalenberg, Meijiao Li, Jae Seung Lee
  • Patent number: 9847571
    Abstract: An antenna includes a ground support, an electrically conductive, endless element mounted at a distance relative to the ground support, and a trio of ports arranged along the endless element for conveying radio frequency signals in an operating band of frequencies. The antenna is compact and has high port isolation and low pattern correlation due to successively spacing the ports apart along the endless element by a spacing of one-half of a guided wavelength at a center frequency of the operating band.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: December 19, 2017
    Assignee: Symbol Technologies, LLC
    Inventors: Giorgi Bit-Babik, Antonio Faraone
  • Patent number: 9543648
    Abstract: Techniques of designing an antenna array with antenna units controlled electronically are described. Through controlling the combination of the reflectors in each of the antenna units, a desired antenna pattern is formed, adapting to the environment, and providing reliable and efficient links between two transceivers. According to one aspect of the present invention, a switch (e.g., a diode) is used to couple two reflectors. The diode is controlled to be on or off so that the reflectors are conductively integrated or separated.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: January 10, 2017
    Assignee: Commsky Technologies, Inc.
    Inventors: Po-shin Cheng, Xin Li, Daniel Wang, Jun Shen, George Zhao
  • Patent number: 9368861
    Abstract: The present invention provides an omni-directional antenna element configuration having a compensated radiation pattern. Broadband antenna elements are coplanarly disposed on a suitable planar dielectric material. A single element omni-directional antenna comprises a pair of balanced fed radiating microstrip elements symmetrically disposed about the centerline of a balanced signal feed network. Additionally, a pair of pattern augmentation rods are positioned on each side of and proximate to the planar dielectric material running longitudinally to the centerline axis of a balanced feed network. Disposed proximate to each radiating element are partially coplanar, frequency bandwidth expanding microstrip lines. The combination of radiating elements together with pattern augmentation rods provides a broad bandwidth omni-directional radiating element suitable for use in multi-element antenna arrays.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: June 14, 2016
    Assignee: Intel Corporation
    Inventors: Kostyantyn Semonov, Alexander Rabinovich, Bill Vassilakis
  • Patent number: 9300053
    Abstract: For use with an armored vehicle, a wideband embedded armor antenna is provided. The antenna includes an armor layer mounted to the armored vehicle. A driven dipole is mounted between the armor layer and the vehicle, the dipole operating in the UHF band. A first parasitically driven dipole is mounted on the outside of the armor layer. A second parasitically driven dipole is mounted between the driven dipole and the vehicle. A feed for the driven dipole is provided which does not pierce the armor layer.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: March 29, 2016
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Gregory J. Wunsch, Paul E. Gili
  • Patent number: 9225071
    Abstract: Various embodiments of antenna assemblies are disclosed herein. In one embodiment, the antenna assembly includes a reflector comprising a center opening, a feed-antenna subassembly situated in front of the reflector, a rear housing situated behind the reflector, and a pole-mounting bracket comprising a base plate situated between the reflector and the rear housing. The feed-antenna subassembly comprises a feed tube that houses at least one of: a transmitter circuit and a receiver circuit. The rear housing is coupled to a front side of the reflector via the center opening. The rear housing comprises a center cavity, and a back end of the feed tube is inserted in and coupled to the center cavity. The base plate is coupled to the reflector and the rear housing in such a way that decoupling between the base plate and the reflector requires a prior decoupling between the feed-antenna subassembly and the rear housing and a prior decoupling between the rear housing and the reflector.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 29, 2015
    Assignee: UBIQUITI NETWORKS, INC.
    Inventors: Jude Lee, Gerardo Huerta
  • Patent number: 9093741
    Abstract: In one embodiment, a repeater for wireless sensing includes a base substrate, a front substrate, a rear substrate, a receive antenna formed on the front substrate, a transmit antenna formed on the rear substrate, and a frequency multiplier formed on the base substrate between the antennas.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: July 28, 2015
    Assignees: University of South Florida, University of Vermont and State Agricultural College
    Inventors: Thomas McCrea Weller, Ibrahim Turki Nassar, Jeffrey Frolik
  • Patent number: 9035846
    Abstract: A display device includes a display panel and a directional antenna. The directional antenna is disposed behind or under the display panel for radiating or receiving wireless signals. The radiating path of the directional antenna is at a specific angle with respect to a horizontal plane for receiving surrounding wireless signals. Or, the signals radiated from the directional antenna may be reflected or refracted to regions above or in front of the display device by a back-side barrier or penetrate a back-side barrier which does not cause large electromagnetic degradation, thereby receiving wireless signals originated from the front-side or back-side of the display device.
    Type: Grant
    Filed: September 4, 2011
    Date of Patent: May 19, 2015
    Assignee: AmTRAN TECHNOLOGY CO., LTD
    Inventors: Jia-Haur Liang, Wen-Ping Yu
  • Publication number: 20150070235
    Abstract: An antenna device includes a first substrate, a feeder line which is disposed in the first substrate, a grounding conductor which is disposed in the first substrate, a first radiation element which is electrically connected to the feeder line in the first substrate, a second radiation element which is electrically connected to the grounding conductor and is disposed substantially in parallel with the first radiation element in the first substrate, a first reflector which is disposed in the first substrate, and a second reflector which is disposed in the first substrate so as to be separated by a predetermined distance from the first radiation element or the second radiation element in at least one of longitudinal directions of the first radiation element and the second radiation element.
    Type: Application
    Filed: February 4, 2014
    Publication date: March 12, 2015
    Inventors: Yuichi Kashino, Hiroyuki Uno, Suguru Fujita, Ryosuke Shiozaki
  • Publication number: 20150048977
    Abstract: An antenna assembly includes a first active antenna element and a second active antenna element, each of which may be a dipole. A first set of independently-switchable radio-frequency reflectors are positioned around at least the first active antenna element. These first switchable radio-frequency reflectors may also be positioned around the second active antenna element. Alternatively, a second set of independently-switchable radio-frequency reflectors may be positioned around the second active antenna element. The switchable reflectors enable controlled perturbation of the communication channel between the antenna assembly and a remote communications node, enabling securely encrypted communications.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 19, 2015
    Inventor: Amir Keyvan Khandani
  • Publication number: 20150042533
    Abstract: An antenna structure includes a dipole antenna element, a closed-loop conductor, and a reflection plane. The dipole antenna element is configured to transmit an electromagnetic signal. The closed-loop conductor is disposed adjacent to the dipole antenna element. The dipole antenna element is substantially between the closed-loop conductor and the reflection plane, or the closed-loop conductor is substantially between the dipole antenna element and the reflection plane. The reflection plane is configured to reflect the electromagnetic signal from the dipole antenna element so as to enhance the total gain of the antenna structure. The mutual coupling effect between the closed-loop conductor and the dipole antenna element effectively causes the distance between the dipole antenna element and the reflection plane to be shorter.
    Type: Application
    Filed: March 4, 2014
    Publication date: February 12, 2015
    Applicant: Wistron NeWeb Corp.
    Inventor: Chia-Shang CHENG
  • Publication number: 20150009084
    Abstract: An electromagnetic band gap device is disclosed that includes a dielectric support of which one face is metallized and of which a second face includes a plurality of non-adjoining conducting elements. Several conducting elements are linked together pairwise by a resistive element in the electromagnetic band gap device. At least two of the conducting elements are electrically insulated from one another and at least two resistive elements exhibit a different resistance value.
    Type: Application
    Filed: February 19, 2013
    Publication date: January 8, 2015
    Inventors: Yonnec'h Coupa, Michel Jousset, Stephane Mallegol
  • Publication number: 20140368396
    Abstract: An antenna apparatus is provided with: a dielectric substrate, a front array including a feed element and a plurality of parasitic elements, the feed element being formed on the dielectric substrate and having one radiation direction, and the plurality of parasitic elements being formed on the dielectric substrate in an area located in the radiation direction with respect to the feed element; and at least one side array including a plurality of parasitic elements formed on the dielectric a substrate in at least an area located in a direction other than the radiation direction with respect to the feed element. The plurality of parasitic elements of each side array are aligned substantially along the radiation direction.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Inventors: Sotaro SHINKAI, Takeshi OHNO
  • Patent number: 8912969
    Abstract: The present invention discloses a directional antenna for a multi-in multi-out or antenna beam switchable wireless communication system, including a substrate, at least one directional antenna, formed on the substrate, for generating a radiating pattern of a radiation plane according to a feeding signal, and a reflector, disposed in parallel to the radiation plane of the directional antenna, for reflecting the radiating pattern of the directional antenna, to increase a gain of the directional antenna corresponding to the radiation plane.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: December 16, 2014
    Assignee: Mediatek Inc.
    Inventor: Hsiao-Ting Huang
  • Patent number: 8902117
    Abstract: In each parasitic element array, each of parasitic elements has a strip shape substantially parallel to a longitudinal direction of a dipole antenna, and the parasitic elements are formed at predetermined intervals. For example, the interval is set to be equal to or smaller than ? of a wavelength ? of a high-frequency signal to be fed to a feeder line. The parasitic element arrays are arranged so as to form a plurality of pseudo-slot openings that allow a radio wave from the dipole antenna to propagate therethrough as magnetic currents.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: December 2, 2014
    Assignee: Panasonic Corporation
    Inventors: Takeshi Ohno, Sotaro Shinkai
  • Publication number: 20140292604
    Abstract: At least one example embodiment discloses an antenna system. The antenna system includes a single printed circuit board (PCB) substrate and an antenna integrated with the single PCB substrate, the antenna being a broadside low-profile microstrip antenna.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 2, 2014
    Applicant: Alcatel-Lucent USA Inc.
    Inventors: Noriaki KANEDA, Shahriar SHAHRAMIAN, Yves BAEYENS, Young-Kai CHEN
  • Publication number: 20140287701
    Abstract: An electronic device has a multilayer substrate that has an interface surface configured for interfacing to a dielectric waveguide. A conductive layer on the substrate is etched to form a dipole antenna disposed adjacent the interface surface to provide coupling to the dielectric waveguide. A reflector structure is formed in the substrate adjacent the dipole antenna opposite from the interface surface.
    Type: Application
    Filed: April 1, 2013
    Publication date: September 25, 2014
    Inventor: Texas Instruments Incorporated
  • Publication number: 20140287702
    Abstract: A system includes an electronic device coupled to a mating end of a dielectric wave guide (DWG). The electronic device has a multilayer substrate that has an interface surface configured for interfacing to the mating end of the DWG. A conductive layer is etched to form a dipole antenna disposed adjacent the interface surface. A reflector structure is formed in the substrate adjacent the dipole antenna opposite from the interface surface. A set of director elements is embedded in the mating end of the DWG. Specific spacing is maintained between the dipole antenna and the set of director elements.
    Type: Application
    Filed: April 2, 2013
    Publication date: September 25, 2014
    Inventor: Texas Instruments Incorporated
  • Publication number: 20140266953
    Abstract: An antenna is provided comprising a pair of driven elements and a pair of passive elements. The driven elements are disposed on opposite sides of a reference plane, and the passive elements are also disposed on opposite sides of the reference plane. One or both passive elements may be provided in a different plane than the driven elements. By varying placement of the passive elements the antenna radiation pattern can be altered. An antenna array is also provided, comprising two or more oppositely directed directional antennas at least one of which is as described above. The passive elements of the antennas can be adjusted for a desired coverage pattern of the array, such as an azimuthal omnidirectional pattern, for example through simulation. The antenna or array may be embodied on a printed circuit board.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: SIERRA WIRELESS, INC.
    Inventor: Chih-Chuan YEN
  • Patent number: 8810467
    Abstract: Multi-band dipole antennas for wireless application devices are disclosed. An example antenna includes at least one dipole including a resonant element and a ground element. A feed point is coupled to the resonant element, and a ground point is coupled to the ground element. The example antenna also includes a parasitic element adjacent at least a portion of the resonant element. The parasitic element is coupled to the ground element and configured to be operable for changing a resonant frequency of at least a portion of the resonant element.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 19, 2014
    Assignee: Laird Technologies, Inc.
    Inventors: Ting Hee Lee, Kok Jiunn Ng
  • Patent number: 8797224
    Abstract: An antenna unit is provided with: steerable antennas, each having one active antenna element and two parasitic antenna element; and metal blocks. Each of the active antenna elements is associated with at least one of the metal blocks such that the metal block is disposed remote from the active antenna element by a predetermined distance and operates as a reflector for the active antenna element. Each of the parasitic antenna elements is provided with a switching circuit for changing an electrical length of the parasitic antenna element, and the parasitic antenna element operates as a reflector for an active antenna element of the same steerable antenna as the parasitic antenna element by changing the electrical length using the switching circuit.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: August 5, 2014
    Assignee: Panasonic Corporation
    Inventors: Sotaro Shinkai, Wataru Noguchi, Hiroyuki Yurugi, Masahiko Nagoshi, Akihiko Shiotsuki, Osamu Tanaka, Toyoshi Yamada, Nobuhiko Arashin
  • Patent number: 8797221
    Abstract: A reconfigurable antenna that utilizes liquid metal to achieve dynamic antenna performance is disclosed. The reconfigurable antenna may utilize one or more liquid metal sections that can be variably displaced. Utilizing liquid metal may reduce certain undesirable effects associated with more conventional mechanical reconfigurable antennas including mechanical failure due to material fatigue, creep, and/or wear. Precise microfluidic techniques may be utilized in the design of a reconfigurable antenna that utilizes liquid metal. The reconfigurable antenna may utilize a circular Yagi-Uda array design and include movable parasitic director and reflector elements implemented using liquid metal (e.g., mercury (Hg)). The parasitic elements may be placed and rotated in a circular microfluidic channel around a driven antenna element utilizing a flow generated and controlled by a piezoelectric micropump.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 5, 2014
    Assignee: Utah State University
    Inventors: Bedri A. Cetiner, Yasin Damgaci, Luis Jofre, Daniel Rodrigo
  • Patent number: 8780001
    Abstract: An asymmetrical dipole antenna is provided. A radiation module and a ground module are formed by a metallic conductor and arranged at an interval on a substrate of the antenna, and the radiation module and the ground module, respectively, have a radiation base and a ground base. Two radiation arms and two ground arms are formed by extending from two ends of the two respective bases in opposite directions. The two radiation arms are orthogonal to the radiation base, and the second radiation arm is bent and extended toward the first radiation arm to form an arc opened toward the first radiation arm. The two ground arms are orthogonal to the ground base, and a hook is formed by extending and bending the second ground arm toward the first ground arm. A feeder unit connects the feed point and the ground point of the two bases.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: July 15, 2014
    Assignee: Accton Technology Corporation
    Inventor: Chang-Jung Lee
  • Publication number: 20140184460
    Abstract: An antenna formed on a semiconductor structure having a substrate with electrical circuits thereon operationally related to the functionality of an antenna and one or more metallic structures formed by a through silicon via, microbump, copper pillar, or redistribution layer proximate to the substrate. The one or more metallic structures form a radiating element of the antenna. Exemplary antennas thus formed can include a slot antenna, a WLAN slot antenna, a planar invented F antenna (PIFA), a spiral antenna, a dipole antenna, a Yagi antenna, a planar dipole antenna, a vertical dipole antenna, a patch antenna, a helical antenna, a loop patch antenna, and combinations thereof.
    Type: Application
    Filed: January 3, 2013
    Publication date: July 3, 2014
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventor: Hsiao-Tsung YEN
  • Patent number: 8736507
    Abstract: Parasitic elements of each parasitic element pair have a strip shape, and are formed on a straight line, which is parallel to a longitudinal direction of a printed dipole antenna and is positioned in a radiation direction of radio wave from the printed dipole antenna, so as to have a gap of a predetermined interval. The parasitic element pairs and the dipole antenna are arranged at predetermined intervals so as to oppose to and to be electromagnetically coupled to each other.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: May 27, 2014
    Assignee: Panasonic Corporation
    Inventor: Takeshi Ohno
  • Patent number: 8717246
    Abstract: A stacked antenna includes a first dielectric substrate, a second dielectric substrate, at least one vertical conductive structure, at least one transmission line structure, a driven element, at least one reflector and a director. The second dielectric substrate is stacked on the first dielectric substrate. The conductive structure penetrates the first dielectric substrate or the second dielectric substrate. The transmission line structure is disposed between the first and second dielectric substrates. The driven element is disposed between the first and second dielectric substrates and is electrically connected to the conductive structure through the transmission line structure. The reflector is spaced from the driven element by the first dielectric substrate and is disposed under the first dielectric substrate. The director is spaced from the driven element by the second dielectric substrate.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: May 6, 2014
    Assignee: National Taiwan University
    Inventors: Hsin-Chia Lu, Chen-Fang Tai, Yi-Long Chang
  • Patent number: 8626242
    Abstract: To provide an adaptive array antenna capable of increasing resolution of a variable beam direction of the antenna without increasing a calculation amount in arithmetic processing unit for optimally controlling a variable phase shifter. A parasitic element-equipped adaptive array antenna (100) includes n (n is an integer equal to or greater than 2) parasitic antenna elements (1011 to 101n), (n?1) fed antenna elements (1021 to 102n?1) which are coupled to the parasitic antenna elements (1011 to 101n) by electromagnetic fields, and (n?1) variable phase shifters (1041 to 104n?1) which change the phases of radio frequency signals to be supplied to the respective fed antenna elements (1021 to 102n?1). Each of the fed antenna elements (1021 to 102n?1) is arranged astride at least two of the parasitic antenna elements (1011 to 101n).
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: January 7, 2014
    Assignee: Panasonic Corporation
    Inventor: Takeshi Ono
  • Patent number: 8593351
    Abstract: A portable electronic device is provided. The portable electronic device includes a housing, a circuit board, an amplifier, an antenna and a short element. The circuit board is disposed in the housing, wherein the circuit board includes a first edge and a second edge, and the first edge is opposite to the second edge. The amplifier is disposed on the circuit board and adjacent to the first edge. The antenna is disposed on the second edge of the circuit board, wherein the antenna transmits a wireless signal. The short element is disposed on the second edge of the circuit board, wherein the short element is separated from the antenna, and the short element couples with the antenna to reduce Specific Absorption Rate (SAR) value around the amplifier.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: November 26, 2013
    Assignee: Mediatek Inc.
    Inventors: Shih-Wei Hsieh, Shyh-Tirng Fang
  • Patent number: 8570231
    Abstract: This application describes a dynamically tuned front end module using a modal antenna approach for improved communication system performance. The front end module consists of power amplifiers, filters, switches and antennas along with tuning circuits integrated and controlled to provide an optimized system for RF transmission. Dynamic tuning provides the ability to maintain optimized system performance for a wide variety of use cases and environments that the wireless device is operated in. Several transmission modes are accessed in an algorithm to optimize the performance of multiple wireless devices in a cellular system, to include a power conservation mode, emergency transmission mode, and cell capacity optimization mode. Dynamic adjustment of correlation and isolation between multiple antennas is a benefit provided by this front end topology.
    Type: Grant
    Filed: November 11, 2012
    Date of Patent: October 29, 2013
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Barry Matsumori, Sebastian Rowson, Jeffrey Shamblin
  • Patent number: 8558748
    Abstract: A printed dual-band Yagi-Uda antenna is disclosed, which includes a substrate, a first driver, a first director, a second driver and a reflector. The first driver is formed on the substrate, and is utilized for generating a radiation pattern of a first frequency band. The first director is formed at a side of the first driver on the substrate, and is utilized for directing the radiation pattern of the first frequency band toward a first direction. The second driver is formed between the first driver and the first director on the substrate, and is utilized for generating a radiation pattern of a second frequency band. The reflector is formed at another side of the first driver on the substrate, and is utilized for reflecting both the radiation patterns of the first frequency band and the second frequency band toward the first direction.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: October 15, 2013
    Assignee: Ralink Technology Corp.
    Inventors: Xin-Chang Chen, Min-Chung Wu
  • Publication number: 20130241789
    Abstract: A circuit board for wireless communications includes communication circuitry for modulating and/or demodulating a radio frequency (RF) signal and an antenna apparatus for transmitting and receiving the RF signal, the antenna apparatus having selectable antenna elements located near one or more peripheries of the circuit board. A first antenna element produces a first directional radiation pattern; a second antenna element produces a second directional radiation pattern offset from the first radiation pattern. The antenna elements may include one or more reflectors configured to provide gain and broaden the frequency response of the antenna element. A switching network couples one or more of the selectable elements to the communication circuitry and provides impedance matching regardless of which or how many of the antenna elements are selected.
    Type: Application
    Filed: April 15, 2013
    Publication date: September 19, 2013
    Inventors: Victor Shtrom, Darin T. Milton, William S. Kish
  • Patent number: 8525743
    Abstract: An antenna and a wireless mobile communication device incorporating the antenna are provided. The antenna includes a first conductor section electrically coupled to a first feeding point, a second conductor section electrically coupled to a second feeding point, and a near-field radiation control structure adapted to control characteristics of near-field radiation generated by the antenna. Near-field radiation control structures include a parasitic element positioned adjacent the first conductor section and configured to control characteristics of near-field radiation generated by the first conductor section, and a diffuser in the second conductor section configured to diffuse near-field radiation generated by the second conductor section into a plurality of directions.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: September 3, 2013
    Assignee: BlackBerry Limited
    Inventors: Yihong Qi, Perry Jarmuszewski, Adam D. Stevenson
  • Patent number: 8514142
    Abstract: The present invention is an electronically scannable antenna. The antenna includes a Radio Frequency (RF) element. The antenna also includes a screen which is configured at least substantially around the RF element. The screen includes a plurality of integrated switches which may be configured to allow the operating mode of the screen to be selectively and automatically switched between a transmissive mode and a reflective mode. When the screen is operating in the transmissive mode, the antenna is configured to provide an omni-directional beam. When the screen is operating in the reflective mode, the antenna is configured to provide a directional beam.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: August 20, 2013
    Assignee: Rockwell Collins, Inc.
    Inventor: Jonathan P. Doane
  • Patent number: 8508424
    Abstract: A high band element and an antenna including a plurality of high band elements are provided. The high band element can include directors disposed above four dipoles, and the antenna can include a plurality of low band elements configured to accommodate the plurality of high band elements. The low band elements can be configured in a 1-2-2-2-1 arrangement or a 2-2-2-2-1 arrangement.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: August 13, 2013
    Assignee: Andrew LLC
    Inventors: Igor E. Timofeev, Eddie Ray Bradley
  • Patent number: 8508423
    Abstract: The present invention provides a small antenna device realizing both miniaturization including lower profile and a broader band in a frequency band of hundreds MHz to 5 GHz and which can be mounted on a small device such as a cellular phone. An antenna device includes: a finite ground plane; a rectangular conductor plate provided above the finite ground plane, whose one side is connected to the finite ground plane, and having a bent portion substantially parallel with the one side; an antenna disposed substantially parallel with the finite ground plane above the finite ground plane, extending in a direction substantially perpendicular to the one side, and having a feeding point positioned near the other side facing the one side of the rectangular conductor plate; and a magnetic material provided in at least a part of space between the finite ground plane and the antenna.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 13, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiro Suetsuna, Makoto Higaki, Kouichi Harada, Seiichi Suenaga, Mitsuru Ishibashi, Maki Yonetsu
  • Patent number: 8487819
    Abstract: A mobile wireless communications device may include a portable housing having a surface, a printed circuit board (PCB) carried by the portable housing, and wireless transceiver circuitry carried by the PCB. The device may further include an antenna connected to the transceiver, and at least one electrically floating, electrically conductive, antenna beam shaping element secured to the surface of the portable housing for directing a beam pattern of the antenna.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: July 16, 2013
    Assignee: Research In Motion Limited
    Inventors: Yihong Qi, Ying Tong Man, Krystyna Bandurska
  • Publication number: 20130178169
    Abstract: The present invention discloses a high gain antenna. The high gain antenna includes a first dipole antenna, formed on a substrate; a parallel reflection metal sheet, formed on the substrate and in parallel with the first dipole antenna; a first vertical reflection metal sheet, vertically disposed on a front side of the substrate and behind the first dipole antenna; and a second vertical reflection metal sheet, vertically disposed on a back side of the substrate and behind the first dipole antenna.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 11, 2013
    Inventors: Cheng-Hao Kuo, Hsiao-Ting Huang, Shao-Chin Lo
  • Publication number: 20130178170
    Abstract: According to one exemplary embodiment of the invention, a vehicle antenna apparatus is provided on a vehicle in such a way that this results in the antenna having a horizontal main beam direction. A first reflection apparatus above the conductive roof of the vehicle, with an exciter between these two elements, causes the reflections to be doubled, thus causing the main beam direction to be lowered from a vertical to a horizontal direction.
    Type: Application
    Filed: July 20, 2012
    Publication date: July 11, 2013
    Applicant: Continental Teves AG & Co. oHG
    Inventors: Sighard Schräbler, Sebastian Strunck, Andreas Schirling, Michael Stämmler, Marc Menzel
  • Patent number: 8482473
    Abstract: A planar reconfigurable antenna including a substrate, a metal layer, a master antenna, an auxiliary antenna and a switch set is provided. The substrate has a first surface and a second surface. The metal layer is disposed on the first surface of the substrate and the upper edge of the metal layer is in a convex arc shape. The master antenna is disposed on the substrate and partially overlaps the metal layer on a vertical plane of projection. The auxiliary antenna is disposed on the substrate and is placed opposite to the master antenna. The switch set is also disposed on the substrate and changes a connection relation of a plurality of directional devices in the auxiliary antenna to switch scanning directions of main beams generated from the planar reconfigurable antenna.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: July 9, 2013
    Assignee: HTC Corporation
    Inventor: Huan-Chu Huang
  • Publication number: 20130169502
    Abstract: The present invention discloses a directional antenna for a multi-in multi-out or antenna beam switchable wireless communication system, including a substrate, at least one directional antenna, formed on the substrate, for generating a radiating pattern of a radiation plane according to a feeding signal, and a reflector, disposed in parallel to the radiation plane of the directional antenna, for reflecting the radiating pattern of the directional antenna, to increase a gain of the directional antenna corresponding to the radiation plane.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 4, 2013
    Inventor: Hsiao-Ting Huang
  • Publication number: 20130135166
    Abstract: An antenna feeding network, including at least one antenna feeding line, each antenna feeding line comprising a coaxial line having a central inner conductor and a surrounding outer conductor. The outer conductor (4) is made of an elongated tubular compartment (5) having an elongated opening (6) along one side of the compartment (5), and that the inner conductor (3) is suspended within the tubular compartment (5) by means of dielectric support means (7).
    Type: Application
    Filed: January 28, 2013
    Publication date: May 30, 2013
    Applicant: CELLMAX TECHNOLOGIES AB
    Inventor: CELLMAX TECHNLOGIS AB
  • Patent number: 8451180
    Abstract: In one embodiment, an integrated antenna and display shade for a wireless portable control unit is provided which includes a stowable display shade having two side panels and a front panel between the two side panels. Each of the two side panels are foldably connected to opposing edges of the front panel so as to be capable of folding into planes generally parallel with a plane of the front panel when stowed and into planes generally orthogonal to the plane of the front panel when deployed to shade a visual display. The front panel includes an active antenna and each of the side panels include a parasitic antenna.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: May 28, 2013
    Assignee: AeroVironment, Inc.
    Inventors: Holden Bonwit, Abraham Hartenstein
  • Patent number: 8390521
    Abstract: An antenna array for radar transceivers, in particular for ascertaining distance and/or speed in the surroundings of vehicles, a first antenna part being situated on a carrier and a second antenna part being situated on another carrier situated at a distance from the first. The first antenna part has two generally rectangular primary exciter patches which adjoin each other on one edge, where they are short-circuited toward ground, two primary exciter patches have two separate supply lines, and the second antenna part comprises two mutually separated rectangular secondary exciter patches, which partially cover the primary exciter patches and which have, in the region of the ground short-circuit of the primary exciter patches, in the beam direction, a distance from each other that at least exposes the ground short-circuit.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: March 5, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Hasch, Ewald Schmidt