Wave Guide Type (e.g., Horn) Patents (Class 343/772)
  • Patent number: 10367584
    Abstract: A photonic modulator is provided that includes a transducer element that receives a RF input signal and converts the RF input signal into an elastic wave. One or more optical waveguides receive the elastic wave that has propagated a specified distance through an acoustic delay line. The one or more optical waveguides perform optomechanical transduction on the elastic wave in the presence of an optical wave, which produces one or more scattered optical waves. An optical circuit sums the one or more scattered waves to produce an optical signal output.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: July 30, 2019
    Assignee: PSquared Technologies LLC
    Inventors: Peter Thomas Rakich, Zheng Wang
  • Patent number: 10355359
    Abstract: An antenna includes a horn including an axial waveguide and a circular radome including a central cavity. The circular radome is configured to protrude into the axial waveguide. The antenna further includes a coil element provided over a coil frame and configured to fit inside the central cavity. The horn includes a conical structure having multiple circular chokes that are configured to shape a beam of the antenna to provide a desired gain by reducing sidelobes.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: July 16, 2019
    Assignee: Lockheed Martin Corporation
    Inventors: Frank Butscher, Joseph T. Loane, William Jay Dawley
  • Patent number: 10340599
    Abstract: Antennas suitable for use in compact radio frequency (RF) applications and devices, and methods of fabrication thereof. Described are resonator antennas, for example dielectric resonator antennas fabricated using polymer-based materials, such as those commonly used in lithographic fabrication of integrated circuits and microsystems. Accordingly, lithographic fabrication techniques can be employed in fabrication. The antennas have metal inclusions embedded in the resonator body which can be configured to control electromagnetic field patterns, which serves to enhance the effective permittivity of the resonator body, while creating an anisotropic material with different effective permittivity and polarizations in different orientations.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: July 2, 2019
    Assignee: University of Saskatchewan
    Inventors: Mohammadreza Tayfeh Aligodarz, Atabak Rashidian, David Klymyshyn
  • Patent number: 10333217
    Abstract: A method for beam forming includes providing multiple instances of holographic metasurface antennas (HMAs), a reference wave source coupled to the HMAs, and a hologram function for each of the HMAs; combining the object waves of the plurality of HMAs, generated in response to the reference wave, to produce a composite beam; and modifying a phase angle of the object wave from one or more of the HMAs by modifying the hologram function of the one or more HMAs in order to modify the composite beam.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 25, 2019
    Assignee: Pivotal Commware, Inc.
    Inventors: Eric James Black, Alexander Remley Katko, Jay Howard McCandless
  • Patent number: 10305198
    Abstract: Wireless communication is facilitated via communication assembly apparatuses. A system includes: a wireless gateway device located within a housing and having electrical connection elements for power and network connectivity; and an antenna coupled to the housing and electrically coupled to the wireless gateway device. The housing is adapted to be masked on a surface of a support structure exposed to a defined environment, and is configured to serve a first function and the support structure is configured to serve a second function. The first function is distinct from the second function. In various embodiments, the antenna can be a resonant slot antenna, a horn antenna, a dipole antenna, a patch antenna or a custom antenna element. The wireless gateway device can include circuitry that facilitates multiple-input and multiple-output communication of the antenna, and is configured to be powered via power over Ethernet in some embodiments.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: May 28, 2019
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thomas Schleef, Craig Lee
  • Patent number: 10297919
    Abstract: An antenna is provided from a dielectric wedge waveguide having an AMC wall feed structure 15 coupled thereto through a transition which matches the impedance of the AMC feed structure to dielectric wedge so as to ensure efficient transmission of RF signals between the AMC wall feed structure and the dielectric wedge. In some embodiments, the antenna may be implemented as a flush mounted or conformal antenna on an outer surface of a supporting platform.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 21, 2019
    Assignee: Raytheon Company
    Inventors: Jackson Ng, Charles G. Gilbert, Sergio A. Pizarro
  • Patent number: 10234514
    Abstract: An antenna includes a plurality of superconducting quantum interference device (SQUID) arrays on a chip, and a printed circuit board (PCB) formed with a cutout for receiving the chip. The PCB is formed with a set of coplanar transmission lines, and the chip is inserted into the cutout so that each said transmission line connects to a respective SQUID array. A cryogenic system can cool the chip to a temperature that causes a transition to superconductivity for the SQUID arrays. A thermal radome can be placed around the chip, the PCB and the cryogenic system to maintain the temperature. A DC bias can be applied to the SQUID arrays to facilitate RF detection. The SQUID array, chip and CPW transmission lines can cooperate to allow for both detection of said RF energy and conversion of said RF energy to a signal without requiring the use of a conductive antenna dish.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: March 19, 2019
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Anna M. Leese de Escobar, Marcio Calixto de Andrade, Susan Anne Elizabeth Berggren, Robert Lewis Fagaly, Benjamin Jeremy Taylor
  • Patent number: 10224597
    Abstract: Antenna arrangement for a fill-level measuring device for ascertaining and monitoring a fill level of a medium in a container by means of a microwave, travel-time measurement method, comprising a horn antenna having a horn shaped component for focusing microwaves and a microwave transmissive, process isolating element, which is provided in the region of the exit opening of the horn shaped component facing the medium and which isolates the interior of the horn shaped component from the interior of the container. There is provided for additional focusing of the microwaves a lengthening component, which lengthens the horn shaped component in the radiated direction of the microwaves. The process isolating element is embodied and arranged in such a manner that it isolates the horn shaped component and the lengthening component galvanically from one another.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: March 5, 2019
    Assignee: ENDRESS+HAUSER SE+CO. KG
    Inventor: Thomas Blodt
  • Patent number: 10199728
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention relates to an antenna structure for signal radiation in a transmission device. An apparatus for signal radiation includes a feeding unit configured to radiate a signal, and a guiding unit, that consists of a plurality of elements physically spaced from one another, configured to adjust a radiation pattern of the signal radiated by the feeding unit by generating a radio wave in a Transverse Electric (TE) mode. Further, the present invention also includes embodiments different from the above-described embodiment.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: February 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Bin Hong, Yoon-Geon Kim
  • Patent number: 10164344
    Abstract: A waveguide device includes a first electrically conductive member having a first electrically conductive surface; a second electrically conductive member having a second electrically conductive surface which opposes the first electrically conductive surface; and a ridge-shaped waveguide member on the second electrically conductive member. The second electrically conductive member has a throughhole which splits the waveguide member into first and second ridges. The first and second ridges each have an electrically conductive end face, the end faces opposing each other via the throughhole. The opposing end faces and the throughhole together define a hollow waveguide. The hollow waveguide is connected to a first waveguide extending between the waveguide face of the first ridge and the first electrically conductive surface, and to a second waveguide extending between the waveguide face of the second ridge and the first electrically conductive surface.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: December 25, 2018
    Assignees: NIDEC CORPORATION, WGR CO., LTD.
    Inventors: Hideki Kirino, Hiroyuki Kamo
  • Patent number: 10096906
    Abstract: An antenna may include a reflector and a multi-band feed assembly. A support member may be coupled to the multi-band feed assembly to orient the multi-band feed assembly for direct illumination of the reflector. The multi-band feed assembly may include first and second feeds, each having a respective septum polarizer coupled between a respective common waveguide and a respective pair of waveguides. A housing of the support member may contain the respective septum polarizers and the respective pairs of waveguides.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: October 9, 2018
    Assignee: VIASAT, INC.
    Inventors: Anders Jensen, Donald L Runyon
  • Patent number: 10097226
    Abstract: A mounting base (14) is fixed to an antenna (13) or an antenna bracket (15) for supporting the antenna (13). A baseband unit (11) and an RF unit (12) are fixed to the mounting base (14). The baseband unit (11) fixed to the mounting base (14) is disposed to face a back part (132) of the antenna (13) and to form a space between the back part (132) and the first enclosure (111). The RF unit (12) fixed to the mounting base (14) is disposed in the space formed between the back part (132) of the antenna (13) and the baseband unit (11) and is coupled to a waveguide flange (132) of the antenna (13). Thus, for example, in a configuration of a point-to-point wireless apparatus in which an RF unit and a baseband unit are separated, restrictions on installation space of the apparatus can be facilitated.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: October 9, 2018
    Assignee: NEC Corporation
    Inventor: Masatoshi Shimizu
  • Patent number: 9972912
    Abstract: Devices and systems, and methods of using them, for point-to-point transmission/communication of high bandwidth signals. Radio devices and systems may include a pair of reflectors (e.g., parabolic reflectors) that are adjacent to each other and configured so that one of the reflectors is dedicated for sending/transmitting information, and the adjacent reflector is dedicated for receiving information. Both reflectors may be in a fixed configuration relative to each other so that they are aligned to send/receive in parallel. In many variations the two reflectors are formed of a single housing, so that the parallel alignment is fixed, and reflectors cannot lose alignment. The device/systems may be configured to allow switching between duplexing modes. These devices/systems may be configured as wide bandwidth zero intermediate frequency radios including alignment modules for automatic alignment of in-phase and quadrature components of transmitted signals.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 15, 2018
    Assignee: Ubiquiti Networks, Inc.
    Inventors: Gary D. Schulz, Paul Odlyzko, John R. Sanford, Christopher Fay, Jude Lee, Charles D. Macenski, Richard J. Keniuk, Lance D. Lascari
  • Patent number: 9929467
    Abstract: An antenna module is disclosed. The antenna module is applied to a mobile communication device and includes a first radiating element and a second radiating element. The first radiating element is disposed on a base board inside the mobile communication device, and one point of the first radiating element is a feed point of the antenna module. The second radiating element is disposed on the base board and is grounded by connecting to a P-sensor inside the mobile communication device. There is a gap between one part of the second radiating element and the first radiating element.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: March 27, 2018
    Assignee: PEGATRON CORPORATION
    Inventors: Chun-Chih Chen, Chien-Yi Wu, Chun-Wei Wang, Hau-Yuen Tan, Chia-Ho Ting, I-Shu Lee
  • Patent number: 9817114
    Abstract: According to one aspect, a radar-radiometric imaging method is disclosed that includes cyclical observation, with a time period T, of a selected space section due to antenna beam rotation with a period Ta (Ta?T) around a rotation axis misaligned with the antenna's beam axis, along with the simultaneous change of the spatial orientation of this rotation axis using an antenna positioning device to ensure survey of the selected space domain for the time T without gaps.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: November 14, 2017
    Assignee: Radio Physics Solutions Ltd.
    Inventors: Sergiy Shylo, Yuriy Sydorenko, Dana Wheeler, Douglas Dundonald
  • Patent number: 9768514
    Abstract: A horn (12) for elementary antennas for telecommunications, in particular satellite telecommunications, characterized in that the horn (12) includes a first emitting-receiving portion (22) adapted to emit and receiving an electromagnetic wave at a first frequency and a second emitting-receiving portion (24) adapted to emit and receiving an electromagnetic wave at a second frequency, the second emitting-receiving portion (24) being distinct and separate from the first emitting-receiving portion (22) and the ratio between the second frequency and the first frequency being greater than 1.2, preferably greater than 1.5.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: September 19, 2017
    Assignee: THALES
    Inventors: Friedman Tchoffo Talom, Gilles Quagliaro
  • Patent number: 9730368
    Abstract: According to an embodiment, there is provided a leak preventing device of electromagnetic wave, including a metal pipe and a magnetic material part. The metal pipe is arranged to surround a periphery of a first electric power transmission device. The first electric power transmission device wirelessly transmits electric power to a second electric power transmission device via an electromagnetic wave. The second electric power transmission device is opposed to the first electric power transmission device. An opening is formed on the metal pipe along a circumferential direction of the metal pipe. The magnetic material part is arranged within the metal pipe along the circumferential direction the metal pipe.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: August 8, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsu Shijo, Akiko Yamada, Shuichi Obayashi
  • Patent number: 9711860
    Abstract: A wireless electronic device includes a Substrate Integrated Waveguide (SIW), a first metal layer including one or more top wave traps, a second metal layer, a feeding structure extending through the first metal layer and into the SIW, and a reflector on the first side of the SIW. The reflector directly connects to the first metal layer and extends outward along a major plane of the first side of the first metal layer. The wireless electronic device is configured to resonate at a resonant frequency when excited by a signal transmitted or received though the feeding structure. The one or more top wave traps are configured to trap a signal radiated by the reflector based on the signal transmitted or received though the feeding structure.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: July 18, 2017
    Assignees: Sony Corporation, Sony Mobile Communications Inc.
    Inventors: Zhinong Ying, Kun Zhao
  • Patent number: 9612357
    Abstract: The present invention provides an electromagnetic wave receiving/transmitting device and the application thereof. The electromagnetic wave receiving/transmitting device of the present invention can effectively receive up to 80 to 500 GHz of terahertz electromagnetic waves. The electromagnetic wave receiving/transmitting device of the present invention further achieves the application of terahertz imaging. The physical package of the electromagnetic wave receiving/transmitting device of the present invention is capable of effectively absorbing external and internal noise of electromagnetic waves to significantly reduce noise, and thereby achieving the application of terahertz imaging.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: April 4, 2017
    Assignee: ARCHIT LENS TECHNOLOGY INC.
    Inventors: Lawrence Dah-Ching Tzuang, Yen-Ju Wu
  • Patent number: 9559403
    Abstract: A broadband signal junction with sum signal absorption for transmitted signals includes a common hollow conductor with a first predefined cross-section and four laterally-disposed side arm hollow conductors with a predefined cross-section. The cross-sections of the side arm hollow conductors can also be selected to be different. Two first opposing side arm hollow conductors of the four side arm hollow conductors extend along a first axis. Two second opposing side arm hollow conductors of the four side arm hollow conductors extend along a second axis. The first and the second axes are disposed orthogonal to one another and lie in the common plane. The broadband signal junction with sum signal absorption is characterized in that the two first side arm hollow conductors end with a hollow conductor absorber.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: January 31, 2017
    Assignee: Airbus DS GmbH
    Inventor: Philipp Kohl
  • Patent number: 9520637
    Abstract: A compact, agile polarization diversity, multiple frequency band antenna with integrated electronics for terrestrial terminal use in satellite communications systems includes an antenna feed having highly integrated microwave electronics that are mechanically and electromagnetically coupled thereto in a distributed arrangement so that diverse polarization senses having a low axial ratio and electronic switching control of the polarization senses is provided. The arrangement of the integrated distributed transceiver configuration enables the mechanical rotation of the orientation of a first transceiver for skew alignment while a second transceiver remains stationary relative to the antenna feed assembly. The first transceiver can be a high-band transmitter and receiver pair that supports linear polarization senses, and the second transceiver can be a low-band transmitter and receiver pair that supports circular polarization senses.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: December 13, 2016
    Assignee: KVH Industries, Inc.
    Inventors: Thomas D. Monte, Bosui Liu
  • Patent number: 9496622
    Abstract: The photonic-crystal (PC) slab absorber includes: a two-dimensional (2D)-PC slab composed of semiconducting materials; and a lattice point periodically arranged in the 2D-PC slab, the lattice point for forming resonant-state which can capture an electromagnetic waves incident from an outside by resonating an electromagnetic wave in a band edge of a photonic band structure of the 2D-PC slab in the plane of the 2D-PC slab. The 2D-PC slab is doped with impurities and can absorb the captured electromagnetic wave in the band edge resonant frequency of the 2D-PC slab.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 15, 2016
    Assignees: ROHM CO., LTD., OSAKA UNIVERSITY
    Inventors: Masayuki Fujita, Tadao Nagatsuma, Ryoma Kakimi, Dai Onishi, Eiji Miyai
  • Patent number: 9466887
    Abstract: A steerable artificial impedance surface antenna steerable in phi and theta angles including a dielectric substrate, a plurality of metallic strips on a first surface of the dielectric substrate, the metallic strips spaced apart across a length of the dielectric substrate and each metallic strip extending along a width of the dielectric substrate, and surface wave feeds spaced apart along the width of the dielectric substrate near an edge of the dielectric substrate, wherein the dielectric substrate is substantially in an X-Y plane defined by an X axis and a Y axis, wherein the phi angle is an angle in the X-Y plane relative to the X axis, and wherein the theta angle is an angle relative to a Z axis orthogonal to the X-Y plane.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: October 11, 2016
    Assignee: HRL Laboratories, LLC
    Inventors: Daniel J. Gregoire, Joseph S. Colburn
  • Patent number: 9373891
    Abstract: A device for at least one of receiving and transmitting electromagnetic radiation includes a feedhorn having a substantially smooth, electrically conducting inner surface extending from an open end to a feed end, the inner surface being substantially rotationally symmetrical about a longitudinal axis, wherein an orthogonal distance from a point on the longitudinal axis to the substantially smooth, electrically conducting inner surface increases monotonically as the point on the longitudinal axis is selected at successively greater distances from the feed end of the feedhorn towards the open end of the feedhorn such that a profile of the substantially smooth, electrically conducting inner surface of the feedhorn is monotonically increasing. The feedhorn has an operating bandwidth and the feedhorn provides a maximum of ?30 dB cross polarization response over at least 15% of the operating bandwidth.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: June 21, 2016
    Assignees: The Johns Hopkins University, The United States of America, As Represented by the Administration of the National Aeronautics and Space Administration
    Inventors: Charles L. Bennett, Lingzhen Zeng, Edward J. Wollack, David T. Chuss
  • Patent number: 9358067
    Abstract: According to one embodiment of the present disclosure a microwave ablation system is disclosed. The microwave ablation system includes an energy source adapted to generate microwave energy and a plurality of energy delivery devices having a first energy delivery device configured to be inserted into tissue and to generate a non-directional ablation volume and a second energy delivery device configured to be positioned relative to the tissue and to generate a directional ablation volume. The system also includes a power dividing device having an input adapted to connect to the energy source and a plurality of outputs configured to be coupled to the plurality of energy delivery devices. The power dividing device is configured to selectively divide energy provided from the energy source between the plurality of energy delivery devices.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: June 7, 2016
    Assignee: COVIDIEN LP
    Inventors: Anthony C. Lee, Joseph D. Brannan, Mani N. Prakash, Francesca Rossetto
  • Patent number: 9184482
    Abstract: In an example embodiment, an azimuth combiner comprises: a septum layer comprising a plurality of septum dividers; first and second housing layers attached to first and second sides of the septum layer; a linear array of ports on a first end of the combiner; wherein the first and second housing layers each comprise waveguide H-plane T-junctions; wherein the waveguide T-junctions can be configured to perform power dividing/combining; and wherein the septum layer evenly bisects each port of the linear array of ports. A stack of such azimuth combiners can form a two dimensional planar array of ports to which can be added a horn aperture layer, and a grid layer, to form a dual-polarized, dual-BFN, dual-band antenna array.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: November 10, 2015
    Assignee: VIASAT, INC.
    Inventors: Donald L Runyon, Dominic Q Nguyen, James W Maxwell
  • Patent number: 9166297
    Abstract: A device for at least one of receiving and transmitting electromagnetic radiation includes a feedhorn having a substantially smooth, electrically conducting inner surface extending from an open end to a feed end, the inner surface being substantially rotationally symmetrical about a longitudinal axis, wherein an orthogonal distance from a point on the longitudinal axis to the substantially smooth, electrically conducting inner surface increases monotonically as the point on the longitudinal axis is selected at successively greater distances from the feed end of the feedhorn towards the open end of the feedhorn such that a profile of the substantially smooth, electrically conducting inner surface of the feedhorn is monotonically increasing. The feedhorn has an operating bandwidth and the feedhorn provides a maximum of ?30 dB cross polarization response over at least 15% of the operating bandwidth.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: October 20, 2015
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Charles L. Bennett, Lingzhen Zeng, Edward J. Wollack, David T. Chuss
  • Patent number: 9041612
    Abstract: Implementations for exciting two or more modes via modal decomposition of a pulse by a wave launcher are generally disclosed.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: May 26, 2015
    Assignee: New Jersey Institute of Technology
    Inventors: Edip Niver, Mohamed A. Salem, Aladin H. Kamel
  • Patent number: 9035842
    Abstract: A miniature interrogator antenna assembly including: a housing; a first miniature horn antenna in the housing having a first aperture; a second miniature horn antenna in the housing having a second aperture. The first and second miniature horn antennas are arranged in a canted configuration and are joint at a front of the assembly to form combined apertures at the front of the assembly. The antenna assembly further includes: a splitter/combiner having a matching portion, where the matching portion is positioned in the housing in such a way that an apex of the matching portion points to the front of the assembly; a plurality of annular grooves formed around the combined apertures at the front of the assembly; a sum input port coupled to a first waveguide with an H-plane bend feeding the splitter/combiner; and a difference input port coupled to a second waveguide feeding the splitter/combiner directly.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 19, 2015
    Assignee: RAYTHEON COMPANY
    Inventors: Theodore N. Tahmisian, Jr., Charles A. Hall
  • Patent number: 9024813
    Abstract: An antenna device is provided. The antenna device includes a radiator for radiating an electromagnetic wave, and a dielectric body arranged on an electromagnetic wave radiating side of the radiator, and having a plurality of dielectric members arrayed in a longitudinal direction of the radiator, wherein boundaries between the plurality of adjacent dielectric members are asymmetric with respect to a virtual line perpendicularly passing through the center of the dielectric body in the longitudinal direction.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 5, 2015
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Tetsuya Miyagawa, Koji Yano
  • Patent number: 9024835
    Abstract: An integral high frequency communication apparatus comprises a case, a waveguide apparatus having an extension portion, and a circuit board having a signal transmitting unit and a signal receiving unit. The transceiver module having two waveguide openings is retained in the case. The case has an opening through which the extension portion extends outside of the case. The integral high frequency communication apparatus can receive and transmit high frequency signals by the extension portion.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: May 5, 2015
    Assignee: Microelectronics Technology, Inc.
    Inventors: Ruei Yuen Chen, Hsiang Hao Sung
  • Publication number: 20150109178
    Abstract: Described embodiments include an antenna system and method. The antenna system includes at least two surface scattering antenna segments. Each segment includes a respective electromagnetic waveguide structure, and a respective plurality of electromagnetic wave scattering elements. The wave scattering elements are distributed along the waveguide structure, have an inter-element spacing substantially less than a free-space wavelength of a highest operating frequency of the antenna segment, have a respective activatable electromagnetic response to a propagating guided wave, and are operable in combination to produce a controllable radiation pattern. A gain definition circuit defines a series of at least two radiation patterns selected to facilitate a convergence on an antenna radiation pattern that maximizes a radiation performance metric. An antenna controller sequentially establishes each radiation pattern. A receiver receives the desired field of view signal and the undesired field of view signal.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 23, 2015
    Inventors: Roderick A. Hyde, Jordin T. Kare, Lowell L. Wood, JR.
  • Patent number: 9007269
    Abstract: Embodiments of the invention provide a dielectric waveguide antenna including a dielectric waveguide transmitting a signal applied from a power feeder, a dielectric waveguide radiator radiating the signal transmitted from the dielectric waveguide to the air through a first aperture, and a matching unit formed in a portion of the dielectric waveguide and controlling a serial reactance and a parallel reactance to thereby perform impedance matching between the dielectric waveguide radiator and the air, in order to reduce reflection generated in the first aperture during the radiation of the signal through the first aperture. Reflection in the aperture is reduced through the matching unit having various structures, thereby making it possible to improve characteristics of the dielectric waveguide antenna.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: April 14, 2015
    Assignees: Samsung Electro-Mechanics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Jung Aun Lee, Myeong Woo Han, Chul Gyun Park, Moonil Kim, Seung Ho Choi, Kook Joo Lee
  • Publication number: 20150097746
    Abstract: A method and apparatus is presented. A structure having an interior channel is formed using additive manufacturing equipment. A viscous media containing abrasive particles is sent through the interior channel using abrasive flow machining equipment to form a desired surface roughness for the interior channel.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Applicant: THE BOEING COMPANY
    Inventors: Allen Wayne Wilson, Patrick Chalit Pattamanuch, Leonard Rosenheck
  • Patent number: 8970424
    Abstract: A radar level gauge system for determining a filling level in a tank. The radar level gauge system comprises a transceiver, a horn antenna having a first opening connected to the transceiver and a second opening facing a surface of the product in the tank, and processing circuitry connected to the transceiver for determining the filling level based on an electromagnetic surface reflection signal. The horn antenna is configured in such a way that an electrical distance from the first opening to the second opening, along a path defined by an intersection between a wall of the horn antenna and a half-plane starting from and extending in parallel with a cone axis of the horn antenna, is different for different orientations of the half-plane with respect to the cone axis. Hereby, disturbance from an antenna reflection signal can be reduced, which provides for improved measurement of high filling levels.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: March 3, 2015
    Assignee: Rosemount Tank Radar AB
    Inventor: Olov Edvardsson
  • Patent number: 8970440
    Abstract: A waveguide/planar line converter (1) has a rectangular-tube-shaped waveguide (3) through which microwaves or millimeter waves are electrically transmitted, and a planar line substrate (7), which is attached to the opening end portion (5) of the waveguide (3) and amplifies the waves and converts the frequencies of the waves. The planar line substrate (7) has a first conductor layer (9) having the waveguide (3) connected thereto, a second conductor layer (11), and a dielectric body (13) arranged between the conductor layers. The first conductor layer (9) has an antenna pattern (15) and a first grounding conductor (17) arranged on the circumference of the antenna pattern (15) The second conductor layer (11) has a strip conductor (19) electrically connected to the antenna pattern (15), and a second grounding conductor (21) electrically connected to the first grounding conductor (17).
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: March 3, 2015
    Assignee: NEC Corporation
    Inventor: Akira Miyata
  • Patent number: 8963790
    Abstract: A universal joint comprising a pair of circular waveguide ball-joints and a slip-joint allows for simultaneous 3-axis rotation and 3-dimensional translation between an antenna and a stationary source. As such, the universal joint does not have to be physically aligned with the azimuth, and elevation, rotation axis of the antenna and mounted on the gimbal support, greatly simplifying the antenna steering mechanism. The universal joint allows the antenna to be mass-balanced in relation to the azimuth and elevation axis without adding any additional counter weights, thus reducing the size and power requirements of the azimuth and elevation rotation drive systems. Additional ball-joints may be provided to increase the allowed range of motion of the antenna.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: February 24, 2015
    Assignee: Raytheon Company
    Inventor: Kenneth W. Brown
  • Publication number: 20150048983
    Abstract: Systems and methods for a stacked waveguide circulator are described. The stacked waveguide circulator may comprise a first side and a second side. The stacked waveguide circulator may also comprise a top and a bottom opposite the top. The top and the bottom may be adjacent to the first and second sides. The stacked waveguide circulator may also comprise a a first port and a second port on the first side. The first port may be vertically above the second port on the first side. Further, the stacked waveguide circulator may comprise a third port on the second side. The stacked waveguide circulator may comprise a first magnet on the top. The first magnet may be configured to assist in directing signals between the first, second, and third ports.
    Type: Application
    Filed: September 26, 2014
    Publication date: February 19, 2015
    Inventors: Edwin Nealis, Ying Shen
  • Patent number: 8957821
    Abstract: A dual-band feed horn having a connection surface configured for connection to a waveguide and a first surface coupled to the connection surface. The first surface has a cylindrical surface with a length and a first diameter chosen to propagate TE11 modes for both a low frequency band and a high frequency band. The horn has a bandwidth ratio of the high-frequency band to the low frequency band in the range of 1.6-4.0. The horn also has a substantially conical surface coupled to the first surface at a first slope discontinuity. The conical surface includes multiple surfaces each having a respective slope and coupled to adjacent surfaces by a respective plurality of slope discontinuities each having a respective diameter. The slopes and diameters are chosen to generate primarily TM1,m modes (m=1, 2, 3, etc.) in the high-frequency band and primarily higher order TE1,n modes (n=2, 3, etc.) in the low-frequency band such that the low frequency band and the high frequency band have approximately equal beam widths.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: February 17, 2015
    Assignee: Lockheed Martin Corporation
    Inventors: Sudhakar K. Rao, Chih-Chien Hsu, Gerard J. Matyas
  • Patent number: 8957818
    Abstract: A circularly polarized waveguide slot array includes first and second waveguide sections, the first waveguide section extending along a longitudinal axis, and including an antenna element for transmitting or receiving a circularly polarized signal. The second waveguide slot section is coupled side-to-side with the first waveguide slot section and extends along the longitudinal axis, the second waveguide slot section including an antenna element for transmitting or receiving the circularly polarized signal at a phase which is substantially complementary to the circularly polarized signal transmitted by or received by the first waveguide slot section. Further exemplary, the antenna element disposed on the first waveguide slot section is offset from said antenna element disposed on the second waveguide slot section substantially one half of a predefined guide wavelength ?g along said longitudinal axis.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: February 17, 2015
    Assignee: Victory Microwave Corporation
    Inventor: Ming H. Chen
  • Patent number: 8957819
    Abstract: A dielectric antenna includes at least one dielectric unit. Each dielectric unit is separated into a first region and a second region, and the second region could have a bending portion. A conductor covers a surface of the second region of the dielectric unit to form a waveguide structure. The waveguide structure has a first endpoint connected to the first region and a second endpoint serving as a signal feeding terminal for feeding or receiving signals.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: February 17, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Hung-Hsuan Lin, Ta-Chun Pu, Chun-Yih Wu
  • Patent number: 8952857
    Abstract: Designs and operations of momentum antennas are presented. In some antenna designs, the terminating discontinuities are complementary with the opposite transmission line's discontinuity. In other antenna designs, the terminating discontinuities are intrinsically self-complementary.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: February 10, 2015
    Assignee: Arizona Board of Regents, A Body Corporate of the State of Arizona Acting for and on Behalf of Arizona State University
    Inventor: Rodolfo E. Diaz
  • Patent number: 8941549
    Abstract: A compact four-way transducer (FWT) is provided for a microwave communications system. The compact FWT is a compact assembly that is configured to process microwave signals in dual-polarization antenna feeds and to provide single polarized signals for four communications channels. The compact FWT includes four terminals facing different directions at one end for receiving/sending single polarized signals, and a terminal at an opposite end for receiving/sending dual polarized signals.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: January 27, 2015
    Assignee: Tongyu Communication Inc.
    Inventors: Junwei Dong, Zhonglin Wu, Guohui Xiong
  • Patent number: 8933835
    Abstract: A two-channel directional antenna for use in a radar level gauge. The antenna comprises a partition wall dividing the antenna into a first partition for emitting an electromagnetic transmit signal, and a second partition for receiving an electromagnetic echo signal, the partition wall having an outer potion located downstream in a direction of radiation of the antenna. The partition wall comprises an electromagnetic de-coupling structure, which is arranged to reduce any leakage of electromagnetic energy from the transmit signal into the echo signal. The electromagnetic de-coupling structure according to the present invention ensures that the leakage of transmit signal into the received signal is reduced to a satisfactory level.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: January 13, 2015
    Assignee: Rosemount Tank Radar AB
    Inventor: Jan Westerling
  • Patent number: 8928546
    Abstract: An antenna for producing an omni-directional pattern, and using all frequencies of a frequency range simultaneously, is provided with first and second electrically conductive elements disposed coaxially relative to a central axis. The first element has a first surface of revolution about the axis, the first surface of revolution tapering radially outwardly while extending axially away from the second element to terminate at a first axial end of the first element. The second element has a second surface of revolution about the axis, the second surface of revolution tapering radially outwardly while extending axially toward the first element to terminate at a first axial end of the second element. The first and second surfaces of revolution overlap one another radially and axially, and are mutually non-conformal.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: January 6, 2015
    Assignee: Sandia Corporation
    Inventors: Travis Wayne Eubanks, Christopher Lawrence Gibson
  • Patent number: 8922425
    Abstract: A waveguide structure according to one embodiment includes an upper waveguide and a mode conversion portion. The upper waveguide internally transmits a high frequency signal in TE10 mode along a first direction. The mode conversion portion is configured to electromagnetically couple with the upper waveguide. The mode conversion portion converts the high frequency signal propagating through the upper waveguide from TE10 mode to TM11 mode. The mode conversion portion transmits the high frequency signal converted in a second direction perpendicular to the first direction. According to the waveguide structure pursuant to the embodiment, it is possible to attain excellent transmission characteristics of high frequency signals.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 30, 2014
    Assignee: Kyocera Corporation
    Inventor: Kazuki Hayata
  • Publication number: 20140347237
    Abstract: There is provided a wireless communication apparatus that includes (a) a printed circuit board, (b) a radio frequency circuit installed on the printed circuit board, and (c) an antenna element that is integrated onto the printed circuit board and electrically coupled to the radio frequency circuit via a printed conductor.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 27, 2014
    Applicant: RF elements s.r.o.
    Inventors: Juraj TAPTIC, Martin MARCINCAK
  • Patent number: 8872714
    Abstract: A wide beam radio frequency (RF) antenna includes a waveguide and one or more electrically conductive protrusions. The waveguide has at least one electrically conductive interior wall surface, a boresight defined by a longitudinal axis, and an aperture plane, transverse to the longitudinal axis, disposed at a distal end of the waveguide. A first proximal portion of each protrusion is electrically coupled to the electrically conductive interior wall surface, a distal portion of the protrusion being outside the aperture plane.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: October 28, 2014
    Assignee: Space Systems/Loral, LLC
    Inventor: Behzad Tavassoli Hozouri
  • Publication number: 20140302807
    Abstract: An antenna array includes a plurality of radiating elements disposed on a layer that is situated above an egg crate structure that is formed of interconnected dielectric panels. In some embodiments, balun circuitry is disposed on at least some of the dielectric panels of the egg crate structure for use in feeding corresponding radiating elements of the array in a balanced manner. Ground plane blocks may also be coupled to some or all of the dielectric panels to provide circuit shielding and/or to form a ground plane for the array antenna.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 9, 2014
    Applicant: Raytheon Company
    Inventors: Jar J. Lee, Stan W. Livingston
  • Publication number: 20140292604
    Abstract: At least one example embodiment discloses an antenna system. The antenna system includes a single printed circuit board (PCB) substrate and an antenna integrated with the single PCB substrate, the antenna being a broadside low-profile microstrip antenna.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 2, 2014
    Applicant: Alcatel-Lucent USA Inc.
    Inventors: Noriaki KANEDA, Shahriar SHAHRAMIAN, Yves BAEYENS, Young-Kai CHEN