With Parasitic Element (e.g., Reflector Or Director) Patents (Class 343/815)
  • Patent number: 11646499
    Abstract: Novel directional antennas are disclosed which utilize plas-monic surfaces (PS) that include or present an array of closely-spaced parasitic antennas, which may be referred to herein as “parasitic arrays” or fractal plasmonic arrays (FPAs). These plasmonic surfaces represent improved parasitic directional antennas relative to prior techniques and apparatus. Substrates can be used which are transparent and/or translucent.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: May 9, 2023
    Assignee: Fractal Antenna Systems, Inc.
    Inventor: Nathan Cohen
  • Patent number: 11616540
    Abstract: An antenna arrangement (300) comprising a body (301) comprising a plurality of antenna devices (315), the antenna arrangement being characterized in that the body (301) having a flexible structure and an elongated shape and wherein the antennas are arranged in a non-orthogonal co-polarized manner.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: March 28, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jan Hederen, Pål Frenger
  • Patent number: 11611154
    Abstract: A broadband dual-polarized antenna integrated high-performance balun. The antenna structure consists of three main parts: radiator, feeding structure and reflector. The radiation element consists of four radiation parts with petal shape, forming two pairs of orthogonal dipole antennas. The feeding structure consists of four circuit boards with separated lines, forming resonant structures corresponding to a balance transformer. The reflector enables to direct the beam, increasing the antenna's orientation.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: March 21, 2023
    Assignee: VIETTEL GROUP
    Inventors: Cong Kien Dinh, Hoang Linh Nguyen, Tien Manh Nguyen, Ba Dat Nguyen
  • Patent number: 11576253
    Abstract: Printed circuit boards for a base station antenna include a substrate layer, and a first conductive trace and a second conductive trace which are printed on the substrate layer and cross each other. The first conductive trace has two trace sections separated by the second conductive trace. Adjacent ends of the two trace sections separated by the second conductive trace are connected electrically by a jumper. The jumper has an electrical conductor, is isolated electrically from the second conductive trace and is fixed on the printed circuit board. The electrical conductor and the two trace sections are connected electrically at adjacent ends. The printed circuit board allows flexible wiring of the conductive traces on the printed circuit board.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: February 7, 2023
    Assignee: CommScope Technologies LLC
    Inventors: Xiaotuo Wang, Hangsheng Wen, Shuguang Shao, Nengbin Liu, Martin L. Zimmerman
  • Patent number: 11575212
    Abstract: A substrate integrated waveguide fed antenna includes an electric dipole arrangement, a parasitic patch arrangement operably coupled with the electric dipole arrangement, and a feed structure. The feed structure includes a substrate integrated waveguide operably coupled with the electric dipole arrangement for exciting the electric dipole arrangement. A slotted conductive surface with a slot is arranged between the electric dipole arrangement and the feed structure for operably coupling the feed structure with the electric dipole arrangement.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: February 7, 2023
    Assignee: City University of Hong Kong
    Inventors: Chi Hou Chan, Manting Wang
  • Patent number: 11532885
    Abstract: An antenna assembly for receiving television signals on both very high frequency (VHF) bands and ultra high frequency (UHF) bands, the antenna assembly including: a main section including an elongated boom, at least one active element coupled to the boom, and at least one passive element coupled to the boom; a VHF section including a VHF boom configured to be coupled to a first longitudinal end of the boom and at least one active element coupled to the VHF boom; and a UHF section including a UHF boom configured to be coupled to a second longitudinal end of the boom opposite the first longitudinal end and a plurality of passive elements coupled to the UHF boom.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: December 20, 2022
    Assignee: Channel Master, LLC
    Inventors: Anthony John Larsen, II, Jose Ramon Bingochea, II
  • Patent number: 11183775
    Abstract: Base station antennas include a reflector, a first array of cross-polarized radiating elements that are mounted to extend forwardly from the reflector, and a parasitic assembly. The parasitic assembly includes a base that is mounted on the reflector, a horizontal component shaping element, and a forwardly projecting member that projects forwardly from the base that is coupled between the base and the horizontal component shaping element. The horizontal component shaping element may extend substantially parallel to a plane defined by the reflector and may include a proximate side that is directly connected to the forwardly projecting member and a distal side that is opposite the proximate side. The distal side of is only electrically connected to the reflector through the proximate side.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: November 23, 2021
    Assignee: CommScope Technologies LLC
    Inventors: Yunzhe Li, YueMin Li, Peter J. Bisiules, Xiaohua Tian, Junfeng Yu, Dongmin Wang, Xiaoan Fu, Haidan Tang
  • Patent number: 11095040
    Abstract: An antenna includes a ground plane, a first resonator connected to a feeding point for which the ground plane serves as a reference, a second resonator configured to receive power from the first resonator through electromagnetic coupling or magnetic coupling in a contactless manner, at least one director located away from the first resonator and the second resonator, and wherein the ground plane located at a side opposite to the director with respect to the second resonator is used as a reflector, or the antenna further comprises a reflector located at the side opposite to the director with respect to the second resonator.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: August 17, 2021
    Assignee: AGC Inc.
    Inventor: Ryuta Sonoda
  • Patent number: 10992034
    Abstract: An antenna element, including: a first trunk and a second trunk arranged oppositely, a plurality of first branches connecting the first trunk, and a plurality of second branches connecting the second trunk. The first trunk includes a first narrow segment and a first wide segment connecting the first narrow segment, and the second trunk includes a second narrow segment and a second wide segment connecting the second narrow segment. The first narrow segment is disposed opposite to the second narrow segment, the first wide segment is disposed opposite to the second wide segment. The first wide segment defines a first feed hole, the second wide segment defines a second feed hole at a position opposite to the first feed hole.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: April 27, 2021
    Assignee: Shenzhen Antop Technology Co., LTD
    Inventor: Ruidian Yang
  • Patent number: 10978808
    Abstract: A phased array line feed for a reflector antenna, including a plurality of substantially parallel metallic rods and a phase/power switching matrix electrically connected to the metallic rods. The phase/power switching matrix may steer a beam of the reflector antenna by adjusting the phase and/or power difference between the metallic rods. The phased array line feed may also include a plurality of substantially parallel metallic disks. The metallic rods may extend through the metallic disks substantially perpendicular to the metallic discs. The metallic discs may be equally spaced and the diameter of the metallic disks may decrease along the length of the metallic rods. Alternatively, the diameters of the metallic discs may be equal and the distances between the metallic discs may decrease along the length of the metallic rods.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: April 13, 2021
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventor: Christopher K. Walker
  • Patent number: 10833418
    Abstract: An antenna structure includes a dipole antenna element and a floating metal element. The floating metal element is disposed adjacent to the dipole antenna element. The vertical projection of the dipole antenna element at least partially overlaps the floating metal element. The floating metal element is configured for fine-tuning the radiation pattern of the antenna structure and to increase the operation bandwidth of the antenna structure.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: November 10, 2020
    Assignee: WISTRON NEWEB CORP.
    Inventor: Chia-Shang Cheng
  • Patent number: 10819028
    Abstract: A tunable antenna includes a base supporting a support and hollow tube opposing and spaced apart from one another, and spaced-apart and parallel plates. Each plate is coupled only at one end thereof to one of the support and hollow tube. One of the plates located furthest from the base extends past the hollow tube and is spaced apart therefrom. A shaft extends through the hollow tube and the one plate extending past the hollow tube. A tuning plate is coupled to the end of the shaft. A tuning piston is coupled to the shaft and is adapted for movement within the hollow tube where such movement changes the resonant frequency of the antenna.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: October 27, 2020
    Inventor: David F Rivera
  • Patent number: 10819032
    Abstract: A multiband antenna, having a reflector, and a first array of first radiating elements having a first operational frequency band, the first radiating elements being a plurality of dipole arms, each dipole arm including a plurality of conductive segments coupled in series by a plurality of inductive elements; and a second array of second radiating elements having a second operational frequency band, wherein the plurality of conductive segments each have a length less than one-half wavelength at the second operational frequency band.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: October 27, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Ozgur Isik, Philip Raymond Gripo, Dushmantha Nuwan Prasanna Thalakotuna, Peter J. Liversidge
  • Patent number: 10720703
    Abstract: Various embodiments presented herein relate to determining mutual coupling between a pair of antennas in an array antenna. Various operations presented herein enable comparison between a magnitude and phase of a signal transmitted from a first feed network (via a first antenna) and a magnitude and phase of a portion of the signal received at a second feed network (via a second antenna). Electrical effects engendered by any of the first feed network, a first switch, a first local circuit, the second feed network, a second switch, and a second local circuit can also be determined and their effects mathematically removed. Based upon the foregoing, a mutual coupling between the pair of antenna is determined.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: July 21, 2020
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Hung Loui, Thomas Edward Christian, Jr.
  • Patent number: 10547104
    Abstract: An antenna includes a conductor portion, a grounding portion and a radiator portion. The grounding portion includes a main section, first and second wings and a line section. The first and second wings extend respectively from opposite ends of the main section toward the conductor portion. The line section includes a base segment extending from the main section between the first and second wings toward the conductor portion, and an extension segment extending from the base segment toward the first wing. The radiator portion includes a feeding point adjacent to the main section, a base line extending from the feeding point toward the conductor portion and an extension section extending from the base line toward the second wing.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: January 28, 2020
    Assignee: Trans Electric Co., Ltd.
    Inventor: Jui-Chin Huang
  • Patent number: 10547110
    Abstract: A multiband antenna, having a reflector, and a first array of first radiating elements having a first operational frequency band, the first radiating elements being a plurality of dipole arms, each dipole arm including a plurality of conductive segments coupled in series by a plurality of inductive elements; and a second array of second radiating elements having a second operational frequency band, wherein the plurality of conductive segments each have a length less than one-half wavelength at the second operational frequency band.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: January 28, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Ozgur Isik, Philip Raymond Gripo, Dushmantha Nuwan Prasanna Thalakotuna, Peter J. Liversidge
  • Patent number: 10498035
    Abstract: A multiband antenna, having a reflector, and a first array of first radiating elements having a first operational frequency band, the first radiating elements being a plurality of dipole arms, each dipole arm including a plurality of conductive segments coupled in series by a plurality of inductive elements; and a second array of second radiating elements having a second operational frequency band, wherein the plurality of conductive segments each have a length less than one-half wavelength at the second operational frequency band.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: December 3, 2019
    Assignee: CommScope Technologies LLC
    Inventors: Ozgur Isik, Philip Raymond Gripo, Dushmantha Nuwan Prasanna Thalakotuna, Peter J. Liversidge
  • Patent number: 10439296
    Abstract: An antenna device includes a plurality of antenna elements, a metal member integrally including a first wall and a plurality of second walls that are arranged in parallel to each other and perpendicularly extend from one surface of the first wall, and circuit boards that are respectively housed in substrate-housing spaces as gaps between the adjacent second walls and mount feeder circuits for feeding power to the plurality of antenna elements.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 8, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Seiji Kado, Tomoyuki Ogawa, Satoshi Yoshihara
  • Patent number: 10256549
    Abstract: A compact, low profile, Yagi-based MIMO antenna for small form factor devices including mobile phones and other compact wireless devices. The antenna has a dielectric substrate and an electrically conductive ground plane that acts as a reflector. A driven element and director are on the substrate. In one embodiment, the driven element is an arcuate semi-loop connected to meandered legs and the director element is arcuate, both printed on the substrate. In another embodiment, the driven element is a semi-loop and the director is rectangular, both etched from the ground plane. In both embodiments, a transmission line conveys RF power to the antenna to excite the driven element. Two of the antennas can be mounted side-by-side on a substrate to form a dual-antenna system, and two of the antenna systems can be placed in a tablet or the like.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: April 9, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohammad S Sharawi, Syed S Jehangir
  • Patent number: 9397405
    Abstract: An 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: Grant
    Filed: December 19, 2011
    Date of Patent: July 19, 2016
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Masahiro Yanagi, Shigemi Kurashima, Hideaki Yoda
  • Patent number: 9035836
    Abstract: In a typical system a combination of filters (BAW, SAW, etc) and an antenna are configured to achieve frequency filtering effect and efficient transmission and reception of communication signals. Wireless communication systems require specific bandwidth and out-of-band rejection; typically this metric is characterized in frequency roll-off in units of dB/MHz. This number is distributed between the antenna and filter, with the antenna contributing little to date to the filtering effect. Loss and cost penalties are incurred when multi-mode systems are designed which require additional rejection from the filter elements. Described here is a method of designing antennas to reduce the amount of rejection and complexity from the filter system. A superposition of a symmetrical frequency response from the antenna structure coupled with a non-symmetrical frequency response from a counterpoise structure generates increased rejection of out-of-band components.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: May 19, 2015
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Sebastian Rowson, Jeffrey Shamblin
  • 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
  • Patent number: 9030361
    Abstract: A modal adaptive antenna system that dynamically samples proximity sensors or other sensors to determine the use case for the wireless device and then adjust the antenna radiating mode to optimize communication link performance. The modal adaptive antenna system is capable of modifying the antenna radiation pattern to improve communication link quality along with near-field parameters such as SAR and HAC. An algorithm and look-up table containing pre-measured electrical parameters to include TRP, TIS, and SAR are developed and integrated with hardware which includes an antenna and active components to dynamically modify the radiation pattern of the antenna as well as proximity sensors and or other sensing devices.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: May 12, 2015
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Barry Matsumori, Sebastian Rowson, Jeffrey Shamblin
  • Patent number: 9002262
    Abstract: Methods and systems for extending a bandwidth of a multi-mode wideband antenna of a user device are described. A multi-mode wideband antenna includes a single radio frequency (RF) feed coupled to a first element, and a second element coupled to the first element and a ground plane. The first element is to operate as a feeding structure to a parasitic grounding element that is coupled to the ground plane, but is not conductively connected to the RF feed. The multi-mode wideband antenna is configured to provide multiple resonant modes.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: April 7, 2015
    Assignee: Amazon Technologies, Inc.
    Inventor: Jerry W. Kuo
  • Patent number: 8988289
    Abstract: An antenna system is capable of optimizing communication link quality with one or multiple transceivers while suppressing one or multiple interference sources. The antenna provides a low cost, physically small multi-element antenna system capable of being integrated into mobile devices and designed to form nulls in the radiation pattern to reduce interference from unwanted interferers. The antenna system operates in both line of sight and high multi-path environments by adjusting the radiation pattern and sampling the received signal strength to reduce signal levels from interferers while monitoring and optimizing receive signal strength from desired sources.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: March 24, 2015
    Assignee: Ethertronics, Inc.
    Inventors: Jeffrey Shamblin, Sebastian Rowson, Laurent Desclos
  • Patent number: 8963560
    Abstract: An antenna system for electromagnetic compliance testing within a frequency range includes a driven element mounted on a boom and including opposed first and second length-adjustable conductors. A length-adjustable passive element is mounted on the boom and spaced apart from the driven element and including opposed third and fourth length-adjustable conductors. An RF input connector is coupled between a feed path to a feed end of each length-adjustable conductors in the driven element. The feed path is configured to minimize stray reactances and stub effects within the frequency range.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: February 24, 2015
    Assignee: Steppir Antenna Systems
    Inventors: Michael Edward Mertel, James E. Thomas
  • Patent number: 8928540
    Abstract: An antenna system is provided for use in wireless communication, the antenna system is contained in a modular structure. The antenna system includes a plurality of co-located antennas, including at least one active modal antenna, each of the antennas being adapted for operation at a distinct frequency band. The antenna system further includes an active tuning module for tuning a frequency response of the co-located antennas.
    Type: Grant
    Filed: November 11, 2012
    Date of Patent: January 6, 2015
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Sebastian Rowson, Jeffrey Shamblin, Sahil Bansal
  • Patent number: 8928541
    Abstract: An active antenna system and algorithm is proposed that provides for dynamic tuning and optimization of antenna system parameters for a MIMO system that will provide for greater throughput. As one or multiple antennas are loaded or de-tuned due to environmental changes, corrections to correlation and/or isolation are made by tuning the active antenna. A null-steering technique is implemented to alter the near-field and far-field characteristics to aid in modifying correlation and isolation in the multi-antenna system.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: January 6, 2015
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Barry Matsumori, Sebastian Rowson, Abhishek Singh
  • 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: 8860622
    Abstract: An antenna for enhancing characteristic of a beam with reducing PIMD is disclosed. The antenna includes a reflection plate, at least one first choke member disposed on one side of the reflection plate, an insulated member disposed between the reflection plate and the first choke member, thereby separating the first choke member from the reflection plate, wherein the insulated member is an insulator, and a connection member configured to connect electrically the first choke member to the reflection plate through the insulated member, wherein the connection member is a conductor.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: October 14, 2014
    Assignee: Ace Antenna Corporation
    Inventors: Phil-Soo Shin, Byung-Il Oh
  • Patent number: 8803753
    Abstract: The invention relates to data transmission in radio communication networks, the object of the invention multiband directional antenna comprising a multidimensional array structure and having more than one director working in active or passive mode according to the working frequency.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: August 12, 2014
    Assignee: Vodafone IP Licensing Limited
    Inventors: Miguel Arranz Arauzo, Javier Lopez Roman, Julio Urbano Ruiz, Clara Serrano Solsona, Mai Tran Le
  • Patent number: 8798679
    Abstract: A mobile communication base station antenna has a plurality of polarization diversity antenna blocks, each of the polarization diversity antenna blocks including a plurality of polarization diversity antenna elements, each of the polarization diversity antenna elements including antenna elements that are disposed to be orthogonal to each other. The polarization diversity antenna elements of one of the polarization diversity antenna blocks are interposed between the polarization diversity antenna elements of another one of the polarization diversity antenna blocks, and tilt angles in the vertical plane of the respective polarization diversity antenna blocks are different from each other.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: August 5, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Takayuki Shimizu, Shinsuke Murano, Osamu Tasaki
  • Publication number: 20140118191
    Abstract: Controllable directional antenna apparatus and method preferably includes structure and/or steps whereby a Yagi antenna array has a first driven element, a first reflector, and plurality of first directors disposed on a common substrate. The first reflector is bent such that (i) an unbent length thereof is longer than a length of the first driven element, but (ii) a bent length thereof is shorter than the length of the first driven element. A second driven element is also disposed on the common substrate but is angled with respect to the first driven element. A second reflector and a plurality of second directors are also disposed on the common substrate. The second reflector is bent like the first reflector, to reduce the footprint of the array on the substrate. Preferably, the Yagi antenna elements are printed on a printed circuit board.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 1, 2014
    Applicant: Ericsson Canada
    Inventors: Roland Smith, Peter Frank, Jim Wight
  • Patent number: 8648755
    Abstract: An antenna comprising an IMD element and one or more parasitic and active tuning elements is disclosed. The IMD element, when used in combination with the active tuning and parasitic elements, allows antenna operation at multiple resonant frequencies. In addition, the direction of antenna radiation pattern may be arbitrarily rotated in accordance with the parasitic and active tuning elements.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: February 11, 2014
    Assignee: Ethertronics, Inc.
    Inventors: Sebastian Rowson, Jeffrey Shamblin, Laurent Desclos
  • Patent number: 8633863
    Abstract: One or more input signals are used to generate a Pseudo noise generator and re-inject the signal to obtain a more efficient method of control of a receiver using adaptive antenna array technology. The antenna array automatically adjusts its direction to the optimum using information obtained from the input signal by the receiving antenna elements. The input signals may be stored in memory for retrieval, comparison and then used to optimize reception. The difference between the outputs of the memorized signals and the reference signal is used as an error signal.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: January 21, 2014
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Sebastian Rowson, Jeffrey Shamblin
  • Patent number: 8604988
    Abstract: A multi-function array is described where several communication system functions are realized using the same antenna architecture. An array of antenna elements where each antenna element can generate multiple radiation patterns is described; the multiple radiation patterns from each antenna element provides increased capability and flexibility in generating a phased array, a MIMO antenna system, a receive diversity antenna system, as well as direction finding feature by way of an interferometer function provided by one or multiple elements. The small volume attributes of the antenna elements populating the array lend this technique to mobile wireless devices as well as access points.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: December 10, 2013
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Sebastian Rowson, Jeffrey Shamblin
  • Patent number: 8581789
    Abstract: A self-reconfigurable multimode antenna system where loading conditions of sensors are analyzed and used to generate control signals to dynamically reconfigure an antenna for improved performance. One or multiple sensors can be coupled to the antenna to dynamically change the radiating structure. One or multiple sensors can be coupled to the input or matching section of the antenna to improve or alter the impedance match of the antenna. An algorithm to relate loading effects of sensors to dynamically adjust the antenna is described.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: November 12, 2013
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Jeffrey Shamblin, Barry Matsumori
  • 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
  • Patent number: 8525748
    Abstract: A variable directivity antenna apparatus is configured to include a parasitic element, a plurality of antenna elements each provided to be away from the parasitic element by an electrical length of a quarter-wavelength, and a PIN diode connected to the parasitic element and changing over whether or not to ground the parasitic element. A radiation pattern from the variable directivity antenna apparatus is changed by outputting a control signal for changing over whether or not the parasitic element operates as a parasitic element by selectively turning on or off the PIN diode.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: September 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Wataru Noguchi, Hiroyuki Yurugi, Masahiko Nagoshi, Sotaro Shinkai, Akihiko Shiotsuki
  • Patent number: 8519902
    Abstract: A wireless local area network (“WLAN”) antenna array (“WLANAA”) is disclosed. The WLANAA may include a circular housing having a plurality of radial sectors and a plurality of primary antenna elements. Each individual primary antenna element of the plurality of primary antenna elements may be positioned within an individual radial sector of the plurality of radial sectors.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: August 27, 2013
    Assignee: Xirrus, Inc.
    Inventor: Abraham Hartenstein
  • Patent number: 8487816
    Abstract: A communication network antenna array is described, which includes a first patch antenna element, a second patch antenna element, and a third patch antenna element, wherein the first patch antenna is adapted for transmission and/or reception of electromagnetic radiation polarized in a first direction, wherein the second patch antenna is adapted for transmission and/or reception of electromagnetic radiation polarized in a second direction, wherein the third patch antenna is adapted for transmission and/or reception of electromagnetic radiation polarized in a third direction, wherein the first, the second and the third patch antenna elements are arranged equidistant to a straight axis, and wherein the first direction, the second direction, and the third direction define an acute angle with the straight axis.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: July 16, 2013
    Assignee: Nokia Siemens Networks Oy
    Inventor: Jussi Säily
  • 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
  • Patent number: 8362962
    Abstract: An antenna comprising an IMD element, and one or more parasitic and active tuning elements is disclosed. The IMD element, when used in combination with the active tuning and parasitic elements, allows antenna operation at multiple resonant frequencies. In addition, the direction of antenna radiation pattern may be arbitrarily rotated in accordance with the parasitic and active tuning elements.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: January 29, 2013
    Assignee: ETHERTRONICS, Inc.
    Inventors: Sebastian Rowson, Laurent Desclos, Jeffrey Shamblin
  • Patent number: 8354972
    Abstract: The invention refers to a dual-polarized radiating element (100) with: a first patch (101) provided for radiating in a first polarization and a second patch (102) provided for radiating in a second polarization which is substantially-orthogonal to the first polarization, wherein the first patch (101) and the second patch (102) overlap. Further the invention relates to a dual-band dual-polarized antenna assembly (500) comprising at least one patch antenna elements and/or one set of patch antenna elements (501,502) and to corresponding antenna arrays.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: January 15, 2013
    Assignee: Fractus, S.A.
    Inventors: Carmen Borja, Anthony Teillet
  • Patent number: 8242968
    Abstract: A mobile television antenna having an antenna element outwardly extending from opposing ends of a housing. An UHF digital booster extends perpendicularly from one side of the housing between the opposing ends carrying the antenna element. At least one UHF parasitic antenna element is connected on a boom which is integrally connected to the mobile television antenna housing. The ultra high frequency parasitic antenna element is held in a plane near the plane in which the antenna element is held by the housing.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: August 14, 2012
    Assignee: Winegard Company
    Inventors: Timothy John Conrad, Gail Edwin McCollum
  • Patent number: 8237618
    Abstract: A slot-fed Yagi aerial includes: a cable, a reflector, an active dipole and directors, wherein, the reflector, the active dipole, etc. are provided on a support tube; the feeding section of the Yagi aerial is of a shielded slot structure in which the distance between the ends of the slot is approximately one half of the wavelength of the electromagnetic signal desired to be received; the two pieces of thin metal rods composing the half wavelength dipole are located at two external sides of the slot; the outer conductor of the cable is connected to one side of the slot, and the inner conductor of the cable is connected to the other side of the slot or the inner conductor of the cable isolated by a dielectric layer is wound around at the other side of the slot, so as to realize a direct connection feed or a coupling feed.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: August 7, 2012
    Assignee: Shenzhen Grentech Co., Ltd.
    Inventor: Jinbo Wu
  • Patent number: 8207901
    Abstract: An antenna comprises first and second radiating elements for connecting to a first and second potential levels respectively. The first and second potential levels are substantially different for generating an electrostatic field from the first and the second radiating elements. The antenna further comprises first and second field shaping structures for controlling field propagation in a first and second direction respectively. The first and second field shaping structures are interdisplaced for defining a field pathway while the first and second radiating elements are disposed adjacent to the first and second field shaping structures and along the field pathway for directing the electrostatic field in a propagation direction through a liquid medium. More specifically, the propagation direction is defined by the field pathway and substantially perpendicular to at least one of the first and second directions.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: June 26, 2012
    Assignee: Agency for Science, Technology and Research
    Inventor: Jurianto Joe
  • Patent number: 8184062
    Abstract: A wireless local area network (“WLAN”) antenna array (“WLANAA”) is disclosed. The WLANAA may include a circular housing having a plurality of radial sectors and a plurality of primary antenna elements. Each individual primary antenna element of the plurality of primary antenna elements may be positioned within an individual radial sector of the plurality of radial sectors.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: May 22, 2012
    Assignee: Xirrus, Inc.
    Inventor: Abraham Hartenstein
  • Patent number: 8164536
    Abstract: A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: April 24, 2012
    Inventors: Kevin Le, Louis J. Meyer, Pete Bisiules
  • Patent number: 8144070
    Abstract: A portable Yagi antenna kit for being frequency/wavelength adjustable by virtue of being knockdownable, wherein the Yagi antenna is for mounting to a mast. The antenna includes a boom, a reflector element, a driven element, and a director element. The reflector element, the driven element, and the director element each extend outwardly from the boom, respectively. The boom, the reflector element, the driven element, and the director element are each knockdownable so as to be portable and form the kit, and as such, are length adjustable, and as such, are frequency/wavelength adjustable.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: March 27, 2012
    Assignee: Superantenna Corporation
    Inventor: Vernon L. Wright