Reflector Or Director Patents (Class 343/912)
  • Patent number: 11522297
    Abstract: A deployable antenna structure is provided that, in one embodiment, implements an offset feed, cylindrical parabolic antenna. The antenna structure employs a semi-rigid panel that can transition from a stowed state characterized by the retention of substantial strain energy to a deployed state characterized by less strain energy than in the stowed state but more than if the panel were in a strain-free state and a portion of the panel having a shape that closely conforms to a cylindrical parabolic shape.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: December 6, 2022
    Assignee: M.M.A. Design, LLC
    Inventor: Lyn Eric Ruhl
  • Patent number: 11473855
    Abstract: Passive radiative cooling structures and apparatus manufactured with such cooling structures conserve energy needs. A flexible film transparent to visible light incorporates particles at a volume percentage larger than 25% so as to absorb and emit infrared radiation at wavelengths where Earth's atmosphere is transparent. Another film transparent to visible light is thin and flexible and configured to absorb and emit infrared radiation at wavelengths where Earth's atmosphere is transparent, wherein etchings or depositions are present on one or both surfaces. A high efficiency cooling structure has an emissive layer sandwiched between a waveguide layer and a thermal conductive layer. A solar cell panel is covered by a transparent passive radiative cooling film. A container housing an active cooling unit incorporates passive radiative cooling structures on one or more exterior surfaces.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: October 18, 2022
    Inventor: Romy M. Fain
  • Patent number: 11469514
    Abstract: A method of additively manufacturing a composite article with tuned impedance and refractive-index in three dimensions. The method includes providing a ferrite feedstock. The ferrite feedstock is loaded with ferrite particles. The method further includes depositing and curing the ferrite feedstock. Therein a composite article is formed.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: October 11, 2022
    Assignee: VADIENT OPTICS, LLC
    Inventors: Peter G Hugger, Chad N Teters, Ernst Adrian Henle, Thomas Leonard Allen, John Paul Harmon, Samuel Peter Grimm, Edward Whitney Elliott, III, Peter Jon Polesnak
  • Patent number: 11458662
    Abstract: A method produces plastic/metal hybrid components, in particular for the automotive field. A plastic compound is injected into a tool mold, and the tool mold has a core onto which a metal is injected. The plastic compound is then injected into the tool mold such that the metal is back-molded with the plastic compound and is fixed to the plastic in order to produce a blank. The tool mold is used to produce at least one depression in the surface of the blank, the depression being at least partly filled with a metal as part of a first additional processing.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: October 4, 2022
    Assignee: LEONI Bordnetz-Systeme GmbH
    Inventors: Manfred Dehn, Andreas Kremling
  • Patent number: 11381001
    Abstract: Deployable reflectors and antennas and spacecraft using such reflectors are disclosed. An example disclosed reflector includes: a hub having a cross-section formed in a circular, elliptical or polygonal shape; a plurality of ribs, each rib having an inner side surface facing an outer peripheral side of the hub when folded, and an outer side surface that is a surface opposite to the inner side surface, the plurality of ribs being folded to be wound around an outer periphery of the hub such that the inner side surface of each rib and the outer side surface of its adjacent rib partially face each other or the outer side surface of each rib and the inner side surface of its adjacent rib partially face each other, each rib being deployed in a parabolic shape; and a sheet installed across each of the plurality of ribs and capable of reflecting radio waves.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: July 5, 2022
    Assignee: Institute for Q-shu Pioneers of Space, Inc.
    Inventors: Shunsuke Onishi, Tetsuo Yasaka, Kazuo Kuno, Yohei Koga
  • Patent number: 11228115
    Abstract: Apparatus for Manufacture and In-Space Assembly of Antennas comprising: a prefabricated primary reflector center section; a trusselator truss assembler; a phased feed array; wherein said prefabricated reflector center section, trusselator, and phased feed array are fixedly connected to one another; a self-positioning and orienting tool; a truss extending from said trusselator; a secondary reflector attached to said truss; robotic arms; a nibbler end effector mounted on one of said robotic arms; a grapple end effector mounted on one of said robotic arms; a mold for casting a piece of a primary reflector; a power cube; a solar array providing power to said power cube; refabricator plus; and an ESPA ring.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: January 18, 2022
    Assignee: Tethers Unlimited Inc.
    Inventor: Robert Hoyt
  • Patent number: 11201415
    Abstract: The present disclosure relates to a technology for designing a transmitarray antenna based on the mode and incidence angle of feed radio waves. The transmitarray antenna according to one embodiment of the present disclosure includes a plurality of transmitting surface unit cells having different surface structures and different longitudinal lengths located in a plurality of regions, wherein the transmitting surface unit cells are arranged in a mixed manner in the regions based on the different longitudinal lengths and the phase of a transmission coefficient determined based on an input phase and an output phase based on the mode and incidence angle of radio waves transmitted from a feed antenna.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: December 14, 2021
    Assignees: Hongik University Industry-Academia Cooperation Foundation, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jeong Hae Lee, Bomson Lee, Chang Hyeon Lee
  • Patent number: 11063356
    Abstract: A deployable reflectarray has a plurality of strips arranged in quadrants forming the reflectarray. The copper ground plane and the copper dipoles are supported by facesheets made of epoxy reinforced by quartz fibers. The copper ground plane is separated from the copper dipoles by S-shaped springs made of epoxy reinforced by quartz fibers, which allow folding and deployment of the reflectarray.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: July 13, 2021
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Manan Arya, Jonathan Sauder, Richard E. Hodges, Sergio Pellegrino
  • Patent number: 11009695
    Abstract: An occulter petal unfurling system including occulter petal unfurler disposed to rotate in relation to an occulter to unfurl a plurality of petals which in an unfurled condition can be used to block or suppress incoming light.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: May 18, 2021
    Assignee: TENDEG LLC
    Inventors: Gregg E. Freebury, William H. Francis, Neal J Beidleman
  • Patent number: 10938116
    Abstract: Techniques related to a 5th generation (5G) or pre-5G communication system to support higher data rates after a 4th generation (4G) communication system such as long term evolution (LTE) ae provided. A reflector is provided that is configured to change a direction of a beam incident in a first direction to a second direction different from the first direction, so that a receiving entity positioned in a shadow area caused by an object can receive the beam. Therefore, the reflector removes the shadow area at which the beam does not arrive in a 5G wireless communication system.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: March 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jungyub Lee, Junsig Kum, Yoongeon Kim, Byungchul Kim, Youngju Lee
  • Patent number: 10783760
    Abstract: A surveillance apparatus, a corresponding method, surveillance radar apparatus, computer program, and non-transitory computer-readable recordable 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: November 26, 2018
    Date of Patent: September 22, 2020
    Assignee: SONY CORPORATION
    Inventors: Marcel Blech, Ralf Böhnke, Furkan Dayi
  • Patent number: 10644401
    Abstract: Low-band radiators of an ultra-wideband dual-band dual-polarization cellular basestation antenna and ultra-wideband dual-band dual-polarization cellular base-station antennas are provided. The dual bands comprise low and high bands. The low-band radiator comprises a dipole comprising two dipole arms adapted for the low band and for connection to an antenna feed. At least one dipole arm of the dipole comprises at least two dipole segments and at least one radiofrequency choke. The choke is disposed between the dipole segments. Each choke provides an open circuit or a high impedance separating adjacent dipole segments to minimize induced high band currents in the low-band radiator and consequent disturbance to the high band pattern. The choke is resonant at or near the frequencies of the high band.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 5, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Chunhui Shang, Bevan Beresford Jones, Ozgur Isik
  • Patent number: 10616456
    Abstract: A system for lowering and guiding a 3D camera apparatus which includes a pole, top mount, at least one cage bar, a base mount and assembly. The system pairs with a 3D camera, keeping the camera safely in place while allowing the camera to move and rotate as designed. The system allows for a user to control the camera via the system from above by lowering the camera and system into a manhole or septic tank, allowing a camera to take pictures from the lowest desired point all the way up to the top of the hole.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: April 7, 2020
    Inventor: John Hubbard
  • 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: 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: 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: 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