Reflector Or Director Patents (Class 343/912)
  • Patent number: 10254114
    Abstract: A terrain sensor node system and method are provided herein. The terrain sensor node can be employed without hands on placement. Solar power is facilitated and contributes to service life and reliability. A robust housing is capable of aerial drop installation. A domed top and a rounded weighted bottom combine to form a housed sensor that is capable of righting itself after landing. A transparency in the upper housing enables the harnessing of solar power in a righted sensor. An antenna withstands aerial sensor deployment and rotates to a workable orientation without user intervention.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: April 9, 2019
    Assignee: Williams RDM, Inc.
    Inventor: Mark D Walters
  • Patent number: 10157524
    Abstract: A surveillance apparatus, a corresponding method, surveillance radar apparatus, computer program, and non-transitory computer-readable recording medium, the surveillance apparatus including an optical camera that captures images based on received light, the optical camera having a first field of view, a radar sensor that emits and receives electromagnetic radiation, the radar sensor having a second field of view, and wherein the first field of view is variable with respect to the second field of view.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: December 18, 2018
    Assignee: SONY CORPORATION
    Inventors: Marcel Blech, Ralf Boehnke, Furkan Dayi
  • Patent number: 10135151
    Abstract: A segmented structure includes at least two panels, a first panel, called the main panel, a second panel, called the secondary panel. The structure further includes at least one deployment device configured to move secondary panel into a storage position or a deployed position. The deployment device has a translation system having an assembly with articulated arms, wherein the translation system is able to generate a movement of the secondary panel in translation in relation to the main panel. The translation system is connected to the secondary panel by an outer end. A rotation system is able to generate a rotation of the translation system and of the secondary panel connected to the translation system, in relation to the main panel.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: November 20, 2018
    Assignee: ArianeGroup SAS
    Inventor: Francis Grangerat
  • Patent number: 10101492
    Abstract: The disclosure concerns an electromagnetic logging tool for recording the electromagnetic properties of a subterranean rock formation. One version of the disclosure includes an electromagnetic transmitter that transmits an electromagnetic signal into a downhole formation, an electromagnetic receiver that receives the electromagnetic signal formation; and a cavity antenna in which the interior of the cavity contains a metamaterial made up of a plurality of unit cells that include split ring resonators or other devices such as electric-LC resonators.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: October 16, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ahmed E. Fouda, Burkay Donderici
  • Patent number: 9912079
    Abstract: A distributed broadband, omni-dual-band monopole antenna system for use in a Wi-Fi access point. The distributed omni-dual-band antenna system may include an antenna array that includes 4, 6, or 8 monopole antennas arranged in a circular array fashion along the perimeter of the access point. Each monopole antenna may be associated with a single Wi-Fi radio of the access point, and each of the antennas for the different radios are interleaved in order to provide omni-coverage with minimal distortion; that is, each antenna of the access point is alternated with antennas for different radios. A broadband printed omni-dual-band monopole antenna comprising three horizontal radiating elements arranged in an S-shape and a single vertical radiating element connected to the bottom-most horizontal radiating element is also disclosed.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: March 6, 2018
    Assignee: Xirrus, Inc.
    Inventor: Abraham Hartenstein
  • Patent number: 9759844
    Abstract: A film mirror having a metal reflective layer formed on a resin substrate may include, closer to a light incident side than the metal reflective layer, an interface reflective layer having at least one set of a high refractive index layer and a low refractive index layer that are adjacent to each other. At least one of the high refractive index layer and the low refractive index layer may include a water soluble polymer and metal oxide particles. A method for manufacturing the film mirror may include forming the interface reflective layer by simultaneous multilayer coating of materials of the high refractive index layer and the low refractive index layer.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: September 12, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventor: Hitoshi Adachi
  • Patent number: 9673522
    Abstract: Systems and methods are disclosed herein for a reconfigurable faceted reflector for producing a plurality of antenna patterns. The reconfigurable reflector includes a backing structure, a plurality of adjusting mechanisms mounted to the backing structure, and a plurality of reflector facets. Each of the plurality of reflector facets is coupled to a respective one of the plurality of adjusting mechanisms for adjusting the position of the reflector facet with which it is coupled. The reflector facets are arranged to produce a first antenna pattern of the plurality of antenna patterns. By adjusting the plurality of adjusting mechanisms, the position of each of the reflector facets coupled to the respective one of the plurality of adjusting mechanisms is adjusted so that the reflector facets are arranged to produce a second antenna pattern of the plurality of antenna patterns.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: June 6, 2017
    Assignee: Orbital Sciences Corporation
    Inventors: Jack Yi, Joseph Christopher Cardoso, Martin Edwards
  • Patent number: 9627771
    Abstract: A method is provided which includes: defining at least one radiofrequency performance objective to be produced on a selected coverage area on the ground; producing a rigid shell having a predefined profile; producing a reflecting flexible membrane; determining, by successive iterations, N optimum local deformations to be applied at N different points of the flexible membrane; producing N rigid supporting bars of different lengths corresponding to the optimum local deformations to be applied to the flexible membrane; and positioning and rigidly fixing the flexible membrane onto the rigid shell via the N supporting bars.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: April 18, 2017
    Assignee: THALES
    Inventors: Ludovic Schreider, Philippe Lepeltier, Isabelle Faro, Serge Depeyre, Jean-Philippe Taisant
  • Patent number: 9608333
    Abstract: A reflector system includes a hoop assembly, a collapsible mesh reflector surface and an extendible mast assembly. The hoop assembly includes a plurality of link members extending between a plurality of hinge members and the hoop assembly is moveable between a collapsed configuration wherein the link members extend substantially parallel to one another and an expanded configuration wherein the link members define a circumferential hoop. The reflector surface is secured to the hoop assembly and collapses and extends therewith. The hoop is secured by cords relative to top and bottom portions of a mast that maintains the hoop substantially in a plane. The mast is stored on a spool and extends to release the hoop, pull the mesh reflector surface into a shape that is intended to concentrate RF energy in a desired pattern, and tension the cords that locate the hoop.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: March 28, 2017
    Assignee: Harris Corporation
    Inventors: Gustavo A. Toledo, Dana Monnier, Jessica Beahn, Michael R. Winters, Ryan Whitney, Robert M. Taylor, Jonathan Boyles
  • Patent number: 9577344
    Abstract: Apparatus for improving the performance and allowing increased directionality of reflecting-type antenna systems by varying the geometry of the reflecting surface. A reflecting surface is composed of an array of actuated pins which are capable of extending or retracting to alter the overall pattern. An actuator controlling unit has the address of each actuator and is able to extend or retract the pins to the desired degree. The specific pattern which the actuator control unit realizes is determined by the iterative position calculator which utilizes directional inputs from the user and/or inputs from a system which determines the effectiveness of previous pin movements. The apparatus attempts to maximize the received signal by assessing amplitude changes over time and utilizing that information to direct alteration in the reflecting surface for optimal performance.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: February 21, 2017
    Assignee: The United States of Americ as represented by the Secretary of the Air Force
    Inventor: Daniel W. Stambovsky
  • Patent number: 9525943
    Abstract: An electronic device includes an enclosure or housing panel that is used as part of an acoustic system. The panel is divided into several sub-panels. For each sub-panel, the device includes one or more actuators attached to vibrate the sub-panel. The actuator and its attached sub-panel convert an audio signal to acoustic output. Each actuator and sub-panel combination may receive a separate audio signal. The device includes a digital signal processor for controlling each of the sub-panel driving audio signals. The device may further include one or more backing frames that are attached to the panel to provide boundary conditions to the sub-panels. The boundary conditions define a resonance frequency for each sub-panel.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: December 20, 2016
    Assignee: Apple Inc.
    Inventors: Matthew A. Donarski, Daniel K. Boothe, Justin D. Crosby, Mitchell R. Lerner
  • Patent number: 9484636
    Abstract: A reflector assembly includes a frame centered about a longitudinal axis, a first curved body extending from the frame, and a second curved body extending from the frame and connected to the first curved body for supporting the first curved body. A reflective mesh has an electromagnetically reflective surface and a support structure secures the reflective mesh to the first curved body and spaces the reflective mesh away from the first body towards the second body.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: November 1, 2016
    Assignee: Northrop Grumman Systesms Corportion
    Inventor: Mehran Mobrem
  • Patent number: 9472856
    Abstract: A compact antenna that includes a power feeding waveguide, a sub reflection mirror, and a main reflection mirror. Radio waves comprised of a vertical polarized wave and a horizontal polarized wave are transmitted to the power feeding waveguide. The sub reflection mirror is disposed to face an opening of the power feeding waveguide and reflects the radio wave radiated from the opening. The main reflection mirror is disposed to face the sub reflection mirror and outwardly radiates the radio wave reflected by the sub reflection mirror. A front surface of the main reflection mirror has a shape formed by rotating a line reaching one side and the other side of a predetermined parabola curve at least once, around a rotational axis. A front surface of the sub reflection mirror has a shape formed by rotating either one of a stepped line and a wavy line around the rotational axis.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: October 18, 2016
    Assignee: Furuno Electric Co., Ltd.
    Inventor: Kohji Yano
  • Publication number: 20150070246
    Abstract: A reflectarray reflects an incident wave in a desired direction, and the reflectarray includes a plurality of elements arranged in a first direction and in a second direction perpendicular to the first direction. The elements reflect the incident wave. A phase of a reflected wave by one element among the plurality of elements differs from a phase of the reflected wave by an element adjacent to the one element in the first direction by a predetermined value, and the phase of the reflected wave by the one element is equal to a phase of the reflected wave by an element adjacent to the one element in the second direction. Gap sizes between patches of a predetermined plural number of elements arranged in the first direction vary from a smallest value to a largest value. Here, an oblique TM incidence is utilized at a spurious resonance frequency.
    Type: Application
    Filed: May 20, 2013
    Publication date: March 12, 2015
    Applicant: NTT DOCOMO, INC.
    Inventors: Tamami Maruyama, Yasuhiro Oda, Jiyun Shen, Ngoc Hao Tran
  • Publication number: 20150061966
    Abstract: A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis; and at least first and second element groups, wherein the first and second element groups are disposed on the substrate, and include elements that reflect a radio wave. The first element group and the second element group reflect the radio wave with corresponding reflection phases which are different from each other. The radio wave enters while forming an angle other than 0 degrees with respect to the predetermined axis. The elements included in the first element group reflect the radio wave with a first reflection phase, and the elements included in the second element group reflect the radio wave with a second reflection phase, wherein the second reflection phase is different from the first reflection phase.
    Type: Application
    Filed: December 3, 2012
    Publication date: March 5, 2015
    Applicant: NTT DOCOMO, INC.
    Inventors: Tamami Maruyama, Yasuhiro Oda, Hidetoshi Kayama, Ngoc Hao Tran, Jiyun Shen
  • Patent number: 8952866
    Abstract: A dove tail device for adjusting tilting angle of an antenna by rotating an arm member using a motion member which moves linearly is disclosed. The dove tail device in an antenna includes a guide and a motion member configured to move on the guide. Here, the motion member is combined with a rotation arm of a phase shifter, the rotation arm rotates according as the motion member moves on the guide, and an arm member of the phase shifter rotates in response to rotation of the rotation arm.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: February 10, 2015
    Assignee: Ace Technologies Corporation
    Inventors: Gun-Seok Oh, Byung-Ho Kim
  • Publication number: 20150029070
    Abstract: A device includes a dielectric, wherein a front and a back of the dielectric for reflecting and transmitting an electromagnetic wave are defined by a first surface and a second surface, the first or second surface forming a half mirror, the first surface has a height that changes in spiral as leaving from the second surface, and the second surface has a height that changes in spiral as leaving from the first surface.
    Type: Application
    Filed: July 24, 2014
    Publication date: January 29, 2015
    Inventors: Takenori OHSHIMA, Yoji OHASHI, Yukio TAKEDA, Kazumi KASAI
  • Publication number: 20150022414
    Abstract: A method of designing a reflectarray including a substrate having a surface perpendicular to a predetermined axis, wherein elements are disposed on the substrate. The method obtains a reflection phase of the elements as a function of a design parameter such as element spacing, when a radio wave enters the arranged elements, and stores a relationship between the reflection phase and the design parameter in a memory. Here, the design parameter is equally set for the elements. The method repeatedly determines, for each of the elements, the design parameter of a specific element in accordance with the relationship. The function of the design parameter has a range of almost 360 degrees with respect to a range of the design parameter. The reflection phase is the continuous function of the element spacing such that two resonant points occur at which the reflection phase becomes zero.
    Type: Application
    Filed: December 3, 2012
    Publication date: January 22, 2015
    Applicant: NTT DOCOMO, INC.
    Inventors: Tamami Maruyama, Yasuhiro Oda, Hidetoshi Kayama, Ngoc Hao Tran, Jiyun Shen
  • Publication number: 20150015455
    Abstract: A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis, and elements disposed on the substrate. A specific element among the elements reflects the incident wave with a specific reflection phase among a plurality of reflection phases. Each of the elements has an element structure including, at least, a patch and a ground plate. Element spacing of first neighboring elements is different from element spacing of second neighboring elements, and a length of a gap between patches of the first neighboring elements is equal to a length of a gap between patches of the second neighboring elements.
    Type: Application
    Filed: December 3, 2012
    Publication date: January 15, 2015
    Applicant: NTT DOCOMO, INC.
    Inventors: Tamami Maruyama, Yasuhiro Oda, Hidetoshi Kayama, Jiyun Shen, Ngoc Hao Tran
  • Publication number: 20150002368
    Abstract: An modular reflector assembly may include a shell and a support frame. The modular reflector assembly may also include a plurality of support links that mechanically couple the shell to the support frame. The shell may be thermally decoupled from the support frame by the plurality of support links.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Jerry Douglas Macfarlane, Joel Mendoza, Ray Amoranto, Brian E. Park, Nicholas James Smith, Mark E. Ankrom, Jeffrey Wallace, David B. Robinson
  • Publication number: 20140375528
    Abstract: A first spatial crossbar may transmit data to a second spatial crossbar via a first millimeter wave beam between the first spatial crossbar and the second spatial crossbar. The first spatial crossbar may also transmit data to a third spatial crossbar via a second millimeter wave beam between the first spatial crossbar and the second spatial crossbar. The first millimeter wave beam may emanate from the first spatial crossbar at a first angle and be redirected toward the second spatial crossbar by a reflective surface. The second millimeter wave beam may emanate from the first spatial crossbar at a second angle and be redirected toward the third spatial crossbar by a reflective surface. The transmission to the second spatial crossbar may be concurrent with the transmission to the third spatial crossbar.
    Type: Application
    Filed: June 24, 2014
    Publication date: December 25, 2014
    Inventor: Curtis Ling
  • Publication number: 20140354513
    Abstract: Substrates and methods to fabricate and use millimeter wave Sievenpiper EBG structures such that the conductive portions are internal to an LTCC package.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 4, 2014
    Inventors: DEEPUKUMAR M. NAIR, Michael Arnett Smith, James M Parisi, Elizabeth D. Hughes, William E. Mckinzie, III
  • Publication number: 20140354501
    Abstract: A method is provided which includes: defining at least one radiofrequency performance objective to be produced on a selected coverage area on the ground; producing a rigid shell having a predefined profile; producing a reflecting flexible membrane; determining, by successive iterations, N optimum local deformations to be applied at N different points of the flexible membrane; producing N rigid supporting bars of different lengths corresponding to the optimum local deformations to be applied to the flexible membrane; and positioning and rigidly fixing the flexible membrane onto the rigid shell via the N supporting bars.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Inventors: Ludovic SCHREIDER, Philippe LEPELTIER, Isabelle FARO, Serge DEPEYRE, Jean-Philippe TAISANT
  • Publication number: 20140347238
    Abstract: The present invention relates to a reflector for an antenna comprising a first reflector assembly and at least one second reflector assembly, the first reflector assembly having a first reflector structure adapted for a first antenna frequency band ƒ1 and at least one second antenna frequency band ƒ2; the at least one second reflector assembly having a second reflector structure adapted for the first antenna frequency band ƒ1 and at least one third antenna frequency band ƒ3; and wherein the first reflector assembly and the at least one second reflector assembly are electrically coupled so that the first reflector assembly and the at least one second reflector assembly together form a common reflector structure adapted for the first ƒ1, at least one second and at least one third ƒ3 antenna frequency bands. Furthermore, the invention also relates to a multi band antenna comprising at least one such reflector.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Applicant: POWERWAVE TECHNOLOGIES S.A.R.L.
    Inventor: MICHAEL BEAUSANG
  • Patent number: 8878745
    Abstract: A mobile-beam antenna mounting comprises a supporting base, at least one reflector and a transmission and/or reception feed. The feed is mounted in the mounting so as to be immobile relative to the supporting base and the mounting also comprises a mobile support bearing the reflector, the mobile support being mounted on the supporting base with link means suitable for displacing it about at least one fixed displacement axis passing through the phase center of the feed.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: November 4, 2014
    Assignee: Thales
    Inventors: Gilles Navarre, Philippe Lepeltier, Pierre Bosshard
  • Patent number: 8872710
    Abstract: A satellite dish heating system is installed on the rear side of a residential or commercial satellite dish to generate enough heat to keep the front face of a satellite dish reflector and the extension arm leading to the Lnbf warm enough to defrost the dish and arm during winter weather conditions including snow, ice, frost and ice fog, which interfere with satellite dish reception.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: October 28, 2014
    Inventor: Robert Blair Wallace
  • Publication number: 20140292615
    Abstract: The disclosure relates to a metamaterial antenna, where the metamaterial antenna includes an enclosure, a feed, a first metamaterial that clings to an aperture edge of the feed, a second metamaterial that is separated by a preset distance from the first metamaterial and is set oppositely, and a third metamaterial that clings to an edge of the second metamaterial, where the enclosure, the feed, the first metamaterial, the second metamaterial, and the third metamaterial make up a closed cavity; and a central axis of the feed penetrates center points of the first metamaterial and the second metamaterial; and a reflection layer for reflecting an electromagnetic wave is set on surfaces of the first metamaterial and the second metamaterial, where the surfaces are located outside the cavity.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 2, 2014
    Applicant: KUANG-CHI INNOVATIVE TECHNOLOGY LTD.
    Inventors: Ruopeng Liu, Chunlin Ji, Yutao Yue, Qing Yang
  • Patent number: 8849194
    Abstract: Methods and systems for a mesh network utilizing leaky wave antennas (LWAs) are disclosed and may include configuring one or more devices as a mesh network in a wireless device coupled to a plurality of LWAs, and communicating data between said devices via the configured mesh network. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. A plurality of the LWAs may be configured to enable beamforming. The LWAs may comprise microstrip or coplanar waveguides, wherein a cavity height of the LWAs is dependent on spacing between conductive lines in the waveguides. The plurality of LWAs may be integrated in one or more of: integrated circuits, integrated circuit packages, and printed circuit boards. The devices may be internal to the wireless device. The data may be communicated via the mesh network to devices external to the wireless device.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: September 30, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8811511
    Abstract: A transmitter supporting multiple-input, multiple-output communications is provided. The transmitter includes a signal processor, a plurality of feed elements, and an aperture. The signal processor is configured to simultaneously receive a plurality of digital data streams and to transform the received plurality of digital data streams into a plurality of analog signals. The number of the plurality of digital data streams is selected for transmission to a single receive antenna based on a determined transmission environment. The plurality of feed elements are configured to receive the plurality of analog signals, and in response, to radiate a plurality of radio waves toward the aperture. The aperture is configured to receive the radiated plurality of radio waves, and in response, to radiate a second plurality of radio waves toward the single receive antenna.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: August 19, 2014
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Akbar M. Sayeed, Nader Behdad
  • Publication number: 20140225807
    Abstract: A mountable antenna element is constructed as an object from a single piece of material and can be configured to transmit and receive RF signals, achieve optimized impedance values, and operate in a concurrent dual-band system. The mountable antenna element may have one or more legs, an RF signal feed, and one or impedance matching elements. The legs and RF signal feed can be coupled to a circuit board. The impedance matching elements can be utilized to create a capacitance with a portion of the circuit board and thereby optimize impedance of the antenna element at a desired operating frequency. The mountable antenna includes features that enable it for use in concurrent dual band operation with the wireless device. Because the mountable antenna element can be installed without needing additional circuitry for matching impedance and can be constructed from a single piece of material, the antenna element provides for more efficient manufacturing.
    Type: Application
    Filed: April 15, 2014
    Publication date: August 14, 2014
    Applicant: Ruckus Wireless, Inc.
    Inventors: Victor Shtrom, Bernard Baron
  • Patent number: 8803761
    Abstract: In the field of antenna reflectors with a deformable reflecting surface, an actuation system, with which such a reflector may be equipped wherein the reflector includes a chassis, a flexible membrane fixed to the chassis, comprises: a support fixed to the chassis, a set of deformation devices, each deformation device including a pusher element adapted to be driven in translation relative to the support along an axis, the pusher element including a part adapted to come into contact with the flexible membrane at a point to deform it, an actuation device adapted to drive the pusher element of one of the deformation devices in translation at the same time, and a selector device adapted to move the actuation device toward each of the deformation devices.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 12, 2014
    Assignee: Thales
    Inventors: Yannick Baudasse, Stéphane Vezain
  • Publication number: 20140203997
    Abstract: A reflection controller for modifying electromagnetic reflections from a surface includes a conducting patch being positioned proximate to an electromagnetically reflecting surface. The floating conducting patch includes an electrical conductor at a floating potential positioned on a dielectric substrate where at least one of a dielectric thickness, dielectric constant, or the dimensions of the electrical conductor are chosen to reduces retro-reflection of incident radiation.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 24, 2014
    Applicant: PERRIQUEST DEFENSE RESEARCH ENTERPRISES, LLC
    Inventors: Nicholas Perricone, Charles Cox, Gary Betts, Harold Rousell
  • Publication number: 20140198015
    Abstract: There is provided a reflective line source for an antenna system. The reflective line source comprises at least one region adapted to receive an electromagnetic field and to expand the field in at least one dimension. The reflective line source further comprises a reflective phase compensator that is coupled to the region. The reflective phase compensator is adapted to correct a phase error resulting from propagation of the field through the region as well as to fold a direction of propagation of the field. For this purpose, the reflective phase compensator comprises at least two reflective phase compensating surfaces oriented at ninety degrees relative to one another.
    Type: Application
    Filed: January 16, 2013
    Publication date: July 17, 2014
    Applicant: CMC ELECTRONIQUE INC. / CMC ELECTRONICS INC.
    Inventor: CMC ELECTRONIQUE INC. / CMC ELECTRONICS INC.
  • Patent number: 8780010
    Abstract: A metamaterial including at least one spiral conductor. Only a magnetic permeability selected from among an effective dielectric constant and the magnetic permeability of the metamaterial becomes negative, so that the metamaterial have a negative refractive index characteristic. The material includes a plurality of unit cells arrayed in one of one-dimensional direction, two-dimensional directions, and three-dimensional directions. Each of the unit cells includes a dielectric substrate having first and second surfaces disposed in a substantially parallel relationship, and first and second spiral conductors. The first spiral conductor is formed on the first surface of the dielectric substrate, and the second spiral conductor is formed in one of a same direction as and an opposite direction to the first spiral conductor, on the second surface of the dielectric substrate, to oppose the first spiral conductor and to be electromagnetically coupled with the first spiral conductor.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: July 15, 2014
    Assignee: Semiconductor Technology Academic Research Center
    Inventor: Atsushi Sanada
  • Publication number: 20140191925
    Abstract: A reflector support system is provided that includes a backing structure having a plurality of struts. The backing structure may have a plurality of hubs, each of the plurality of hubs may be configured to couple to two or more of the plurality of struts, each of the plurality of hubs may be configured to couple to another one of the plurality of hubs using one of the plurality of struts, each of the plurality of struts is configured to couple to at least two of the plurality of hubs. The backing structure may have a plurality of feet, each of the plurality of feet configured to couple to a corresponding one of the plurality of hubs, the plurality of feet are configured to couple to a reflector. In addition, a synthesis for mechanical adjustment of the reflector support system is provided.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 10, 2014
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Wilhelmus H. THEUNISSEN, Eric TALLEY, William D. BROKAW, James Howard STURGES, Nathaniel David CANTOR
  • Patent number: 8766865
    Abstract: An antenna device including: a reflector antenna including a primary radiator, a feed waveguide for feeding radio waves to the primary radiator, and a reflector; and a radome that covers the reflector antenna, in which the antenna device further includes a sidelobe reduction member attached to a vicinity of the primary radiator or the feed waveguide, the sidelobe reduction member reducing a sidelobe in a specific direction of an antenna by at least one of scattering and absorbing of radio waves reflected by the radome out of the radio waves radiated from the reflector antenna. Therefore, it is possible to reduce a sidelobe deterioration caused by reflection waves from the radome.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: July 1, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinichi Yamamoto, Shuji Nuimura, Izuru Naito, Toshiyuki Horie, Hiroyuki Sato, Makio Tsuchiya
  • Patent number: 8766875
    Abstract: An integrated stiffener and RF reflector (stiffener/reflector) (100) for a RF emitter which includes: a plurality of vertical ribs (102) constituting side walls of the stiffener/reflector; a plurality of horizontal ribs (104) formed in a width direction of the stiffener/reflector; a top cover (204) including metallization layer (308), the top cover being electrically coupled to a ground layer (312) of the RF emitter and configured in such a way to direct all of RF energy in an opposite direction to the top cover. Each of the vertical (102) and horizontal (104) ribs has a sandwich structure, which includes: a foam core layer (302) disposed on a layer of the RF emitter (314); a thin film layer (306) bonded to sides and top of the rib to form facesheets of the sandwich structure.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: July 1, 2014
    Assignee: Raytheon Company
    Inventors: Robert Brett Williams, Kyle W. Maxhimer, Larry L. Lai, Thomas Brennan, Clifton Quan, Fangchou Yang
  • Patent number: 8760358
    Abstract: A device for transmitting radio waves comprises an item of transmitting equipment for a telecommunications antenna, a membrane for thermally protecting the reflector, and means for attaching the thermal protection membrane to the item of equipment. The thermal protection membrane is furnished with a plurality of elastic tensioners designed to keep the thermal protection membrane stretched between a first active face of the item of transmitting equipment and space, irrespective of the thermal expansions of the membrane. The item of transmitting equipment occurs in a predetermined temperature range when the attachment means attach the membrane to the item of transmitting equipment.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: June 24, 2014
    Assignee: Thales
    Inventors: Jean-Luc Bouguereau, Fabien Calmettes-Carensac
  • Patent number: 8760361
    Abstract: A polarization adjustment assembly for a reflector antenna is provided with a radio bracket with a mounting flange. The mounting flange is coupled to a hub provided with a stop portion. Fasteners couple the radio bracket to the hub via slots in the mounting flange, rotatable with respect to the hub within the extents of the slots. An adjustment bolt passes through a boss coupled to the mounting flange. The adjustment bolt abuts the stop portion, whereby longitudinal displacement of the adjustment bolt with respect to the boss rotates the radio bracket with respect to the hub. Alternatively, the positions of the boss and stop portion on the mounting flange and hub may be exchanged.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: June 24, 2014
    Assignee: Andrew LLC
    Inventors: Matthew Lewry, Junaid Syed, Keith Tappin, Chris Hills
  • Patent number: 8729440
    Abstract: A radio frequency heater is disclosed including a vessel for containing material to be heated and a radio frequency radiating surface. The vessel has a wall defining a reservoir. The radio frequency radiating surface at least partially surrounds the reservoir. The radiating surface includes two or more circumferentially spaced petals that are electrically isolated from other petals. The petals are positioned to irradiate at least a portion of the reservoir, and are adapted for connection to a source of radio frequency alternating current. A generally conical tank or tank segment having a conically wound radio frequency applicator is also contemplated. Also, a method of heating an oil-water process stream is disclosed. In this method a radio frequency heater and an oil-water process stream are provided. The process stream is irradiated with the heater, thus heating the water phase of the process stream.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: May 20, 2014
    Assignee: Harris Corporation
    Inventor: Francis Eugene Parsche
  • Publication number: 20140118220
    Abstract: A reflector arrangement is configured for attachment to a wireless communications terminal having a patch antenna. The patch antenna includes a patch radiator in a substantially parallel relationship with a ground plane, and the patch antenna produces a radiation beam of a predetermined beamwidth. The reflector arrangement is configured, when attached to the terminal, to produce a radiation beam of reduced beamwidth relative to the predetermined beamwidth. The reflector arrangement comprises a main reflector and a sub-reflector for reflecting radiation towards the main reflector, and the reflector arrangement is configured such that, when attached to the terminal, the patch antenna acts as a feed antenna for the sub-reflector. The sub-reflector is arranged to collect the radiation from the patch antenna and to reflect the beam towards the main reflector such that the main reflector produces the radiated beam of reduced beamwidth.
    Type: Application
    Filed: October 25, 2012
    Publication date: May 1, 2014
    Applicant: CAMBIUM NETWORKS, LTD
    Inventor: John F. Ley
  • Patent number: 8693599
    Abstract: Disclosed is a wireless receiving apparatus, whereby inter-antenna interference can be reduced without inducing an increase of a mounting area due to an increase of the number of antennas, and the number of RFIC input terminals, circuit scale and power consumption can be reduced. In the wireless receiving apparatus (100), when a receiving antenna (110-1) and a down-converter (130) are connected with a multiplexer (120) therebetween, a capacity control unit (190-2) controls the capacity value of the capacity-variable parasitic element (180-2) connected to the receiving antenna (110-2) such that the communication capacity of the receiving antenna (110-1) is maximum.
    Type: Grant
    Filed: September 6, 2010
    Date of Patent: April 8, 2014
    Assignee: Panasonic Corporation
    Inventors: Kiyomichi Araki, Noriaki Saito, Tadashi Morita
  • Patent number: 8654035
    Abstract: There is provided an antenna reflector including at least first and second reflector segments, each having first and second sides. The first and second reflector segments being configured to be connected together wherein the first sides of the first and second reflector segments define a substantially continuous surface of an antenna reflector. A first latch member is attached to the second side of the first reflector segment and a second latch member is attached to the second side of the second reflector segment. Each latch member includes an abutting surface which contacts one another when the first and second reflector segments are connected together. At least one protrusion extends from the abutting surface of the first latch member. There is at least one recess in the abutting surface of the second latch member. The protrusion is received in the recess when the respective abutting surfaces contact one another.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: February 18, 2014
    Assignee: AvL Technologies, Inc.
    Inventors: Michael A. Proffitt, John W. Gurney
  • Patent number: 8654033
    Abstract: The invention concerns a reflector (8) of radio frequency (RF) energy. The reflector includes a first web layer (9a) formed from a knit of at least a first conductive filament (11a), and a second web layer (9b) formed of a knit of at least a second conductive filament (11b). The first and second web layers can be formed as an open mesh 10. The second web layer is positioned on the first web layer to form a stack. Fastening members (14, 16) are disposed at intervals across a surface of each of the first and second web layers. The fastening members are advantageously configured to secure the first web layer to the second web layer. The invention also concerns a reflector antenna formed using the reflector of radio frequency energy. The reflector antenna includes antenna support elements (18), and the first and second web layers are secured to the antenna support structure to define a curved three dimensional surface.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: February 18, 2014
    Assignee: Harris Corporation
    Inventors: Rodney Sorrell, Frederick P. Turba, Mark Vanstrum
  • Publication number: 20140028533
    Abstract: A antenna reflector compatible with high-frequency applications, i.e. applications using frequencies between 50 and 75 GHz, and suitable for use in a geostationary space environment, comprises a paraboloidal membrane comprising an active face allowing electromagnetic radiation to be reflected and a face opposite the active face. The opposite face of the reflector comprises ribs allowing the stiffness of the reflector to be increased, the ribs being placed on the opposite face in a way that forms a grid pattern between them.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 30, 2014
    Inventors: Florent LEBRUN, Eric ARNAUD
  • Publication number: 20140028532
    Abstract: An inflatable structure usable as a satellite terminal. An inflatable structure may include an inflatable membrane for forming the structure and two integral RF reflective portions. When the membrane is inflated, the two RF reflective portions oppose each other to form an antenna. One RF reflective portion may be a main reflector and the other RF reflective portion may be a subreflector, both reflectors curvatures that face each other to form a Gregorian antenna or a Cassegrain antenna. In another embodiment, an inflatable antenna may include an inflatable dish including a RF reflective main reflector and an opposing RF transparent dish wall. An inflatable RF transparent support member and an RF reflective subreflector extend from the dish wall. Again, when the antenna is inflated, the main reflector and the subreflector oppose each other to reflect RF energy toward each other to form an antenna.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 30, 2014
    Applicant: THE BOEING COMPANY
    Inventors: Robert G. EHRENBERG, Sujal SAMPAT
  • Patent number: 8638267
    Abstract: Provided is a parabolic antenna that suppresses leakage of radio waves with a simpler configuration. The parabolic antenna includes a horn that transmits and receives signals; a feed that supports the horn and relays the signals the horn transmits and receives; a reflector that reflects the received signals to focus the received signals on the horn and reflects the signals from the horn to transmit the signals; a reflecting mirror supporting member that supports the reflector; and a feed fitting adapter that enables the feed to be fitted into the reflecting mirror supporting member. A choke groove is formed in at least one of a joint area between the reflecting mirror supporting member and the reflector and a joint area between the reflecting mirror supporting member and the feed fitting adapter, which suppresses propagation of radio waves traveling through the gap of the joint area.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: January 28, 2014
    Assignee: NEC Corporation
    Inventors: Norihiko Omuro, Nobuhiko Oguma
  • Publication number: 20140015735
    Abstract: An antenna reflector compatible with applications at high frequencies between 12 and 75 GHz and suitable for a paraboloidal or ellipsoidal geostationary space environment comprising a reflective face to focus electromagnetic radiation, comprises a superposition of at least one layer comprising a fibre composite material, the at least one layer of fibre composite material comprising angular sectors arranged around a center, each defined by a first central angle and oriented in a radial direction the median of the central angle, each of the angular sectors comprising the fibre composite material comprising first and second fibres oriented different first and second respective directions, the first direction forming a second angle with the radial direction of the angular sector. The angular sectors comprise three concentric areas: a central area, a peripheral area and an intermediate area situated between the central area and the peripheral area, the intermediate area forming a rim.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 16, 2014
    Inventors: Florent LEBRUN, Patrick Martineau
  • Patent number: 8616328
    Abstract: A tensegrity apparatus having multiple tensegrity units for the transmission of solitary waves with adjustable profiles into a material or structure, and the detection of such waves from a material or structure.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: December 31, 2013
    Assignee: California Institute of Technology
    Inventors: Chiara Daraio, Fernando Fraternali
  • Patent number: 8599081
    Abstract: The subject disclosure relates to solar energy collection and use in communications systems and to enhancements thereof. In an aspect, dual function antennas are disclosed that can simultaneously function as an antenna and as a solar energy collection system. In further aspects, disclosed embodiments can focus incident solar radiation to increase output voltage of conventional solar cells. Measured and simulated results demonstrate various aspects of the subject disclosure.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: December 3, 2013
    Assignee: City University of Hong Kong
    Inventors: Kwok Wa Leung, Eng Hock Lim