Including Waveguide Element Patents (Class 333/135)
  • Patent number: 10340568
    Abstract: An apparatus includes a top conductive layer of on an integrated circuit waveguide filter and a bottom conductive layer. The top and bottom conductive layers are coupled via a plurality of couplers that form an outline of the waveguide filter. A dielectric substrate layer is disposed between the top conductive layer and the bottom conductive layer of the integrated circuit waveguide filter. The dielectric substrate layer has a relative permittivity, ?r that affects the tuning of the integrated circuit waveguide filter. At least one tunable via includes a tunable material disposed within the dielectric substrate layer and is coupled to a set of electrodes. The set of electrodes enable a voltage to be applied to the tunable material within the tunable via to change the relative permittivity of the dielectric substrate layer and to enable tuning the frequency characteristics of the integrated circuit waveguide filter.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: July 2, 2019
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Matthew S. Torpey, Benjamin Andrew Copley, Jeffrey David Hartman, Wayne Stephen Miller
  • Patent number: 10249927
    Abstract: A system includes an RF input coupled to a plurality of channel filters through an inductive manifold. Each of the channel filters is configured as a series resonator and has a frequency of greater than about 1 GHz. The frequency of the channel filters decreases as their distance from the RF input increases. Components of each of the channel filters, which may include a series inductor, series capacitor, and shunt capacitor, are configured using high-Q transmission lines. A tunable notch filter, such as an absorptive tunable band-stop filter, may be included within the channel filters. The system may be used for protection of wideband receivers.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: April 2, 2019
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventor: Jia-Chi S. Chieh
  • Patent number: 10164313
    Abstract: A signal coupling device associating a first frequency band signal and a second, different frequency band, signal in a common waveguide and distributing the signals to two separate waveguides. The device comprises first and second circular waveguides. The second waveguide is coaxially arranged inside a cylindrical interior of the first waveguide. The first waveguide comprises inwardly projecting inner circumference projections in a region occupied only by the first waveguide. The projections activate higher modes from a fundamental mode. The first and second waveguides and the projections cause the superposition of the fundamental and higher modes to produce a wave front having field components in the first frequency band only in a cylindrical ring region between the second waveguide outer circumference and the first waveguide inner circumference, and having field components in the second frequency band only in a cylindrical interior of the second waveguide.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 25, 2018
    Assignee: AIRBUS DS GMBH
    Inventors: Michael Schneider, Michael Kilian
  • Patent number: 9893400
    Abstract: A frequency band splitter is disclosed. The frequency band splitter includes a first, a second, and a third waveguides. A first narrow rectangular waveguide is utilized to connect the first waveguide to second waveguide. The first narrow rectangular waveguide has a first width to allow signals of a frequency band centered around a first frequency to be transmitted from the first waveguide to the second waveguide. A second narrow rectangular waveguide is utilized to connect the first waveguide to the third waveguide. The second narrow rectangular waveguide has a second width, which is different from the first width, to allow signals of a frequency band centered around a second frequency to be transmitted from the first waveguide to the third waveguide.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: February 13, 2018
    Assignee: International Business Machines Corporation
    Inventors: Jose A. Hejase, Rubina F. Ahmed, Daniel M. Dreps, James D. Jordan, Nam H. Pham, Lloyd A. Walls
  • Patent number: 9893431
    Abstract: A waveguide architecture for a dual-polarized antenna including multiple antenna elements. Aspects are directed to dual-polarized antenna architectures where each antenna element includes a polarizer having an individual waveguide with dual-polarization signal propagation and divided waveguides associated with each basis polarization. The waveguide architecture may include unit cells having corporate waveguide networks associated with each basis polarization connecting each divided waveguide of the polarizers of each antenna element in the unit cell with a respective common waveguide. The waveguide networks may have waveguide elements located within the unit-cell boundary with a small or minimized inter-element distance. Thus, unit cells may be positioned adjacent to each other in a waveguide device assembly for a dual-polarized antenna array without increased inter-element distance between antenna elements of adjacent unit cells.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: February 13, 2018
    Assignee: ViaSat, Inc.
    Inventors: Anders Jensen, Dominic Q. Nguyen, Donald L. Runyon
  • Patent number: 9686015
    Abstract: An optical network unit includes a transmit/receive port and a silicon waveguide optically coupled to the transmit/receive port. The optical network unit also includes a tunable filter coupled to the silicon waveguide and providing a first output for a first frequency band and a second output for a second frequency band. The optical network unit further includes a polarization diverse receiver coupled to the tunable filter and a laser coupled to the tunable filter.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: June 20, 2017
    Assignee: Skorpios Technologies, Inc.
    Inventors: Amit Mizrahi, Robert J. Stone, Stephen B. Krasulick, Timothy Creazzo
  • Patent number: 9472836
    Abstract: A waveguide E-plane filter component comprising a first main part and a second main part which in turn comprise a corresponding first and second waveguide section part. The main parts are arranged to be mounted to each other, each waveguide section part comprising a bottom wall, corresponding side walls and an open side, where the open sides are arranged to face each other. The waveguide E-plane filter component further comprises at least one electrically conducting foil that is arranged to be placed between the main parts, said foil comprising a filter part that is arranged to run between the waveguide section parts, the filter part comprising apertures, in said foil.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: October 18, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Anatoli Deleniv, Piotr Kozakowski, Ove Persson
  • Patent number: 9368852
    Abstract: A frequency band splitter is disclosed. The frequency band splitter includes a first, a second, and a third waveguides. A first narrow rectangular waveguide is utilized to connect the first waveguide to second waveguide. The first narrow rectangular waveguide has a first width to allow signals of a frequency band centered around a first frequency to be transmitted from the first waveguide to the second waveguide. A second narrow rectangular waveguide is utilized to connect the first waveguide to the third waveguide. The second narrow rectangular waveguide has a second width, which is different from the first width, to allow signals of a frequency band centered around a second frequency to be transmitted from the first waveguide to the third waveguide.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: June 14, 2016
    Assignee: International Business Machines Corporation
    Inventors: Jose A. Hejase, Rubina F. Ahmed, Daniel M. Dreps, James D. Jordan, Nam H. Pham, Lloyd A. Walls
  • Patent number: 9337933
    Abstract: An optical network unit includes a transmit/receive port and a silicon waveguide optically coupled to the transmit/receive port. The optical network unit also includes a tunable filter coupled to the silicon waveguide and providing a first output for a first frequency band and a second output for a second frequency band. The optical network unit further includes a polarization diverse receiver coupled to the tunable filter and a laser coupled to the tunable filter.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: May 10, 2016
    Assignee: Skorpios Technologies, Inc.
    Inventors: Amit Mizrahi, Robert J. Stone, Stephen B. Krasulick, Timothy Creazzo
  • Patent number: 9231308
    Abstract: A feeding apparatus includes a substrate, an annular grounded metal sheet having a first opening and a second opening, a rectangular grounded metal sheet extending from the annular grounded metal sheet toward an interior according to a configuration of a septum polarizer of a waveguide, a first parasitic grounded metal sheet extending from a side of the rectangular grounded metal sheet along a first direction, a second parasitic grounded metal sheet extending from another side of the rectangular grounded metal sheet along a second direction, a first feeding metal sheet extending from the first opening toward the interior and including a first portion, a second portion and a third portion and a second feeding metal sheet extending from the second opening toward the interior and including a fourth portion, a fifth portion and a sixth portion.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: January 5, 2016
    Assignee: Wistron NeWeb Corporation
    Inventors: Shun-Chung Kuo, Chao-Kai Chan
  • Patent number: 9041488
    Abstract: A waveguide busbar for conducting microwaves includes a group input for coupling in a group microwave signal, a plurality of filter inputs for coupling in a plurality of microwave signals, a dual waveguide that comprises a first single waveguide and a second single waveguide. The plurality of filter inputs are disposed along the dual waveguide, as well as at least one adjustable coupling member that provides a connection between the first single waveguide and the second single waveguide and that is configured such that it adjusts a phase length of the connection.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: May 26, 2015
    Assignee: Tesat-Spacecom GmbH & Co. KG
    Inventors: Christian Arnold, Jean Parlebas, Charles Thibaut
  • Patent number: 8994473
    Abstract: A waveguide has distal, medial and proximal sections. The distal and medial sections rotate relative to each other and to the proximal section. In a first configuration, the waveguide transforms linearly polarized electromagnetic radiation at the proximal end of the proximal section to linearly polarized electromagnetic radiation at the distal end of the distal section and vice versa. In a second configuration, the waveguide transforms linearly polarized radiation at the proximal end of the proximal section into circularly polarized electromagnetic radiation at the distal end of the distal section and vice versa. Preferably, the distal and medial sections include respective eight-wavelength polarizers and the proximal section includes a quarter-wavelength polarizer. A multi-band antenna feed includes two such waveguides, one nested inside the other, for transforming electromagnetic radiation of respective frequency bands.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: March 31, 2015
    Assignee: Orbit Communication Ltd.
    Inventors: Guy Naym, Hanan Keren, Izik Krepner, Shiomo Levi
  • Patent number: 8988164
    Abstract: A waveguide busbar for converting a plurality of high-frequency input signals into high-frequency output signals, includes a waveguide, a plurality of input ports, which are arranged along the waveguide, such that each input port is intended to receive a high-frequency input signal, an output port on the waveguide for delivering the high-frequency output signal and at least one parallel resonator, which is connected to the waveguide busbar between two input ports. The parallel resonator has a mechanically adjustable volume with which a phase relation of the waveguide is adjustable between the two input ports.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: March 24, 2015
    Assignee: Tesat-Spacecom GmbH & Co. KG
    Inventors: Christian Arnold, Jean Parlebas, Daniel Reicherter
  • Patent number: 8988163
    Abstract: A radio-frequency transceiver device, used in a wireless communication system, includes a housing; a first printed circuit board, disposed on a first surface of the housing; a second printed circuit board, disposed on a second surface of the housing, for cooperating with the first printed circuit board to process a receive signal; and a waveguide, connected to the housing, having an orthomode transducer, having a common port, for conveying a transmit signal and the receive signal; a first low-pass filter, coupled to a co-polar port of the orthomode transducer; and a diplexer, coupled to a cross-polar port of the orthomode transducer, for cooperating with the first low-pass filter to separate the transmit signal and the receive signal; wherein connection of the housing and the waveguide substantially conforms to an L shape.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: March 24, 2015
    Assignee: Wistron NeWeb Corporation
    Inventors: Hung-Ju Suchen, Chih-Jung Lin
  • Publication number: 20150077196
    Abstract: The present invention provides a dielectric waveguide input/output structure for connecting to a coaxial connector a plurality of dielectric waveguide resonators each comprising an approximately parallelepiped-shaped dielectric block, wherein the plurality of dielectric waveguide resonators include a first dielectric waveguide resonator and a second dielectric waveguide resonator each having an exterior coated with an electrically conductive film, except for a coupling window, wherein each of the coupling window is formed with a probe composed of an electrically conductive film, the probe having one end connected to a feeding point, and the other end connected to the electrically conductive film, and wherein the first dielectric waveguide resonator and the second dielectric waveguide resonator are arranged in such a manner that the one side surfaces thereof are located in opposed relation to each other.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventor: Yukikazu YATABE
  • Publication number: 20150077195
    Abstract: A hybrid diplexer combining planar transmission line(s) and a waveguide is disclosed. In one embodiment, a diplexer includes first, second, and third ports. The diplexer also includes a first signal path and a second signal path. The first signal path may be used to convey lower frequencies, and may be implemented using planar transmission lines. The second signal path may be used to convey higher frequencies, and may be implemented, at least in part, using a waveguide. The first signal path may be coupled between the first port and the second port, while the second signal path may be coupled between the first port and the third port. In one embodiment, the first signal path may implement a low-pass filter, while the second signal path may implement a high-pass filter.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 19, 2015
    Applicant: National Instruments Corporation
    Inventors: Amarpal S. Khanna, Irfan Ashiq
  • Patent number: 8970321
    Abstract: A millimeter waveband filter is provided with a resonator formed by a pair of electric wave half mirrors in a transmission line of a waveguide allowing electromagnetic waves in a predetermined frequency range of a millimeter waveband to propagate in a TE10 mode, and allows frequency components centering on the resonance frequency of the resonator to pass therethrough. A high-pass filter which has a transmission line reduced in size so as to have a cutoff frequency matching an upper limit of a lower rejection band of a filter passband is formed in a transmission line between the end of the waveguide and the electric wave half mirror, thereby increasing the attenuation of the lower rejection band.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: March 3, 2015
    Assignee: Anritsu Corporation
    Inventors: Takashi Kawamura, Akihito Otani
  • Patent number: 8970322
    Abstract: A five-six-port circuit comprising a waveguide on a main surface of a substrate. The hollow waveguide comprises probes arranged longitudinally inside the hollow waveguide arranged to contact the input port of one of three power detectors, whose output ports are arranged to contact the input port of one power detector. The output ports of the power detectors contact the conductor of an open waveguide which extends in parallel to the hollow waveguide. The probes are equidistantly spaced with a distance of L. The circuit also comprises three LP filters, each of which is connected to the conductor of the open waveguide at a position which corresponds to the position of one of the power detectors.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: March 3, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Mingquan Bao, Per Ligander
  • Patent number: 8970317
    Abstract: A contactless connector includes a transmitter having a first transmit integrated circuit generating a first signal and a second transmit integrated circuit generating a second signal. A first pick-up antenna is adjacent the first transmit integrated circuit and conveys the first signal along a first transmission line to a first propagation antenna. A second pick-up antenna is adjacent the second transmit integrated circuit and conveys the second signal along a second transmission line to a second propagation antenna. The first and second propagation antennas transmit the first and second signals to a propagation path at different and separable polarizations to allow duplex communication with the propagation path.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: March 3, 2015
    Assignee: Tyco Electronics Corporation
    Inventors: David Bruce Sarraf, Charles David Fry, Sean Patrick McCarthy, Bruce Foster Bishop
  • Patent number: 8947174
    Abstract: The present disclosure relates to telecommunication, and in particular, to a base station Radio Frequency (RF) duplexer, an RF module, and an RF system. A base station RF apparatus provided herein includes: an enclosure, an intermediate RF processing unit, and a duplexer. The enclosure is located on the duplexer; the intermediate RF processing unit is located inside a cavity enclosed by the enclosure and the duplexer, or on the duplexer; a duplexer cavity and a heat dissipation part exist on the surface of the duplexer; the opening of the duplexer cavity is opposite to or against the enclosure; the heat dissipation part is designed to dissipate heat of the intermediate RF processing unit; and the duplexer is integrally molded. The foregoing technical solution requires no external fasteners, reduces the time of production and assembly. In addition, waterproof design and shielding design are not required, and thus improves the reliability.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: February 3, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Haizhao Wang, Guangfu Si, Naier Meng, Bo Yang, Puke Zhou, Shengxiang Guo, Yi Zhang, Weihua Sun, Jianjun Zhou, Ke Zhang, Hao Li, Zhiwei Shang, Runxiao Zhang
  • Patent number: 8878629
    Abstract: A diplexer for a reflector antenna includes a common circular signal waveguide to transmit and receive signals. The signal waveguide includes first and second ends with a common port provided at the first end. A waveguide arrangement is disposed coaxially relative to the signal waveguide in the region of the second end of the signal waveguide. A cylindrical coupler section is disposed between the first and second ends of the signal waveguide, and connects the waveguide arrangement to the common signal waveguide. In order to create a first and second coaxial waveguide port, the waveguide arrangement includes a first circular waveguide, an inner conductor is disposed inside, in which a first signal can propagate when the diplexer is operating, and a second circular waveguide, surrounding the first waveguide, in which a second signal can propagate at a lower frequency than the first signal when the diplexer is operating.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: November 4, 2014
    Assignee: Astrium GmbH
    Inventors: Ralf Gehring, Christian Hartwanger, Un Pyo Hong, Enrico Reiche, Michael Schneider, Ernst Sommer, Helmut Wolf
  • Patent number: 8866564
    Abstract: The present invention is an orthomode transducer (OMT) device that allows for dual polarized dual frequency band antenna feed systems. The OMT device includes a waveguide structure having a first end and a second end such that the first end defines a port for receiving signals. The waveguide structure includes an outer wall defining a waveguide chamber therein and the outer wall includes a first cylindrical section proximate the first end. The waveguide structure also includes a second cylindrical section proximate the second end and a region therebetween. At least one longitudinal groove is introduced proximate the second end and extends towards the first end of the waveguide structure. The OMT device further includes at least one waveguide coupled to the outer wall of the waveguide chamber which is in signal communication with the waveguide chamber through an opening in the region of the outer wall.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: October 21, 2014
    Assignee: KVH Industries, Inc.
    Inventor: Thomas D. Monte
  • Publication number: 20140240058
    Abstract: A laminated waveguide diplexer includes a first laminated waveguide, a second laminated waveguide, and a coupling metal connecting the first and second laminated waveguides. The first laminated waveguide has a first upper conductor with a first slot, and the second laminated waveguide has a second upper conductor with a second slot. The coupling metal includes a first line crossing over the first slot and a second line crossing over the second slot. In addition, the laminated waveguide diplexer further includes a first via connecting the first upper conductor and the first line, and a second via connecting the second upper conductor and the second line. The first and second vias are adjacent to the first and second slots, respectively, such that the first and second lines are short stubs for respective radio frequency signals propagating thereon.
    Type: Application
    Filed: October 4, 2013
    Publication date: August 28, 2014
    Applicant: MICROELECTRONICS TECHNOLOGY, INC.
    Inventors: Ting Yi HUANG, Chia Yu CHOU
  • Patent number: 8779872
    Abstract: A radio is provided for transmit-receive isolation and filtering (INTRIFWA) that are sealed and/or integrally built-in a housing of a transmitter, which can be used in microwave communication systems, including satellite based communications systems and terrestrial based microwave communication systems.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: July 15, 2014
    Assignee: Hughes Network Systems, LLC
    Inventors: Thomas Jackson, Guo Chen, Larry Cronise, Peter Hou, Barre Lankford, Edmund Lott, Ross Thomson
  • Patent number: 8736396
    Abstract: Disclosed herein is a radio communicating device including: a first communicating block; a second communicating block rotatable about an axis of rotation relative to the first communicating block; and a radio signal transmission line capable of information transmission by radio between the first communicating block and the second communicating block; wherein between the first communicating block and the second communicating block, a signal to be transmitted is converted into a radio signal of a circularly polarized wave, and the radio signal of the circularly polarized wave is transmitted via the radio signal transmission line.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: May 27, 2014
    Assignee: Sony Corporation
    Inventors: Yasuhiro Okada, Norihito Mihota
  • Publication number: 20140118085
    Abstract: A waveguide busbar for conducting microwaves includes a group input for coupling in a group microwave signal, a plurality of filter inputs for coupling in a plurality of microwave signals, a dual waveguide that comprises a first single waveguide and a second single waveguide. The plurality of filter inputs are disposed along the dual waveguide, as well as at least one adjustable coupling member that provides a connection between the first single waveguide and the second single waveguide and that is configured such that it adjusts a phase length of the connection.
    Type: Application
    Filed: October 28, 2013
    Publication date: May 1, 2014
    Applicant: Tesat-Spacecom GmbH & Co., KG
    Inventors: Christian ARNOLD, Jean PARLEBAS, Charles THIBAUT
  • Publication number: 20140091879
    Abstract: A waveguide structure including a plurality of unit structures, each of which at least includes a first conductive plane and a second conductive plane, which are arranged to partially face with each other, a plurality of transmission lines with one ends being open ends, which are disposed in a plane, positioned opposite to the second conductive plane, in a layer different from the first conductive plane and the second conductive plane, and at least one conductive via, which electrically connect between the first conductive plane and other ends of the transmission lines.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Applicant: NEC CORPORATION
    Inventors: Hiroshi Toyao, Noriaki Ando
  • Publication number: 20140070904
    Abstract: Waveguide components that have a high degree of performance accuracy over the temperature range of interest are provided. The components require no post-formation trimming steps, are light-weight, and dimensionally stable. In addition, a method for the manufacture of these millimeter wave components is provided.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Inventors: Sean S. Cahill, Eric A. Sanjuan
  • Patent number: 8665036
    Abstract: A compact tracking coupler includes a plurality of ridged waveguides arranged circumferentially around a circular waveguide wherein long sides of the ridged waveguides extend circumferentially and short sides of the ridged waveguides extend radially relative to the circular waveguide. The compact tracking coupler can be especially useful in a multi-band antenna feed.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 4, 2014
    Assignee: L-3 Communications
    Inventors: Richard G. Edwards, Rory K. Sorensen, Jeffrey J. Hirasuna
  • Patent number: 8653906
    Abstract: An ortho-mode transducer may include a common waveguide terminating in a common port. A horizontal branch waveguide may terminate in a horizontal port. The horizontal branch waveguide may couple a first linearly polarized mode from the horizontal port to the common waveguide. The horizontal branch waveguide may comprise one or more ridged waveguide segments. A vertical branch waveguide may terminate in a vertical port opposed to the horizontal port. The vertical branch waveguide may couple a second linearly polarized mode from the vertical port to the common waveguide, the second linearly polarized mode orthogonal to the first linearly polarized mode.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: February 18, 2014
    Assignee: Optim Microwave, Inc.
    Inventors: John P. Mahon, Cynthia P. Espino
  • Publication number: 20130342282
    Abstract: An advanced reverse orthomode junction feed assembly with associated filters for use in an antenna feed system for transmitting a first low frequency (LF) electromagnetic signal and receiving a second high frequency (HF) electromagnetic signal. The assembly includes, in a preferred square waveguide topology, an orthomode junction with an antenna port for connecting to a choking iris matching section and an antenna feed, an opposed generally coaxial first signal port to transmit the LF signal, and a generally perpendicular second signal port, located there between, to receive the HF signal. A first signal channel having fully asymmetric on-axis second signal reject filters connects to the first port; and a second signal channel having cross-axis first signal reject filters with multi-cavity HF path matching assembly connects to the second port. The use of a magic-tee as a combiner for the receive signal provides tracking capability to the antenna feed system.
    Type: Application
    Filed: August 23, 2013
    Publication date: December 26, 2013
    Applicant: Macdonald, Dettwiler and Associates Corporation
    Inventor: Jaroslaw UHER
  • Publication number: 20130335165
    Abstract: A waveguide busbar for converting a plurality of high-frequency input signals into high-frequency output signals, includes a waveguide, a plurality of input ports, which are arranged along the waveguide, such that each input port is intended to receive a high-frequency input signal, an output port on the waveguide for delivering the high-frequency output signal and at least one parallel resonator, which is connected to the waveguide busbar between two input ports. The parallel resonator has a mechanically adjustable volume with which a phase relation of the waveguide is adjustable between the two input ports.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 19, 2013
    Inventors: Christian ARNOLD, Jean PARLEBAS, Daniel REICHERTER
  • Publication number: 20130278351
    Abstract: A five-six-port circuit comprising a waveguide on a main surface of a substrate. The hollow waveguide comprises probes arranged longitudinally inside the hollow waveguide arranged to contact the input port of one of three power detectors, whose output ports are arranged to contact the input port of one power detector. The output ports of the power detectors contact the conductor of an open waveguide which extends in parallel to the hollow waveguide. The probes are equidistantly spaced with a distance of L. The circuit also comprises three LP filters, each of which is connected to the conductor of the open waveguide at a position which corresponds to the position of one of the power detectors.
    Type: Application
    Filed: December 29, 2010
    Publication date: October 24, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Mingquan Bao, Per Ligander
  • Patent number: 8549740
    Abstract: Various folded waveguides and methods of manufacturing waveguides are disclosed herein. For example, some embodiments provide a method of manufacturing a folded waveguide including machining a plate with a number of registration marks and forming at least one slow wave circuit in at least two halves on the plate. A portion of the registration marks are for the plate and another portion are for the at least one slow wave circuit. The method also includes connecting the at least two halves of the at least one slow wave circuit and machining the at least one slow wave circuit.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: October 8, 2013
    Assignee: InnoSys, Inc
    Inventors: Ruey-Jen Hwu, Laurence P. Sadwick, Jehn-Huar Chern
  • Patent number: 8542081
    Abstract: In an exemplary embodiment, a dual-band four-port orthomode transducer (OMT) is molded or cast. The OMT may be external to a transceiver housing or included as an integrated portion of the transceiver housing or a drop-in module. In an exemplary embodiment, a four-port OMT is formed from two pieces, the two pieces having a joint adjacent to or aligned to the axis of the common port. In an exemplary embodiment, the OMT is substantially planar and formed of a split-block embodiment. The two OMT pieces are joined and held together with a plurality of discrete fasteners. Furthermore, the OMT is configured to switch polarizations. The polarization switching is initiated using a remote signal and can facilitate load balancing.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: September 24, 2013
    Assignee: ViaSat, Inc.
    Inventors: Sharad Vinodrai Parekh, Kevin Mark Skinner, Donald Lawson Runyon, David Mark Kokotoff
  • Patent number: 8525616
    Abstract: An antenna feed network includes a septum polarizer including a waveguide defining a cavity, wherein a septum is disposed in the cavity to divide the cavity to form a first port and as second port, a diplexer in signal communication with at least one of the first port and the second port of the septum polarizer to route a signal based upon a frequency, and a wave coupler/splitter in signal communication with the diplexer to send and receive signals therebetween, the wave coupler/splitter including a first signal path and a second signal path, wherein the wave coupler/splitter controls a phase shift of a signal transmitted through at least one of the first signal path and the second signal path.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: September 3, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Robert K. Shaw, Jonathan P. MacGahan, Sulinder S. Dhanjal, Erik Lier, Bernard F. Lindinger, James W. Matthews, Kanti N. Patel
  • Patent number: 8508312
    Abstract: The present invention relates to a multiband transmit-receive coupler-separator with a very wide band of the OMT (“OrthoMode Transducer”) type for microwave-frequency telecommunications antennae. This coupler comprises a port for propagating all of the frequencies, a body and a port for propagating high-frequency bands, these three portions being coaxial, and wide-band coupling slots for propagating the low-frequency bands made in the body and each associated with a waveguide, and it is characterized in that its body joining the two ports has a shape of revolution the profile of which changes according to a multipolynomial law, constantly decreasing from the port with the largest cross section to the port with the smallest cross section.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: August 13, 2013
    Assignee: Thales
    Inventors: Paddy Perottino, Philippe Lepeltier
  • Patent number: 8493161
    Abstract: A compact excitation assembly for generating a circular polarization in an antenna in particular transmit and/or receive antennas such as multibeam antennas comprises a diplexing orthomode transducer and a branched coupler and is characterized in that the orthomode transducer (21), or OMT, is asymmetric and comprises a main waveguide (22) with square or circular cross section and longitudinal axis ZZ? and two branches coupled to the main waveguide (22) by respectively two parallel coupling slots (25, 26), the two coupling slots (25, 26) being made in two orthogonal walls of the waveguide, the two branches of the OMT being respectively linked to two waveguides (35, 36) of an unbalanced branched coupler (40), the branched coupler (40) having two different splitting coefficients (?, ?) that are optimized in such a way as to compensate for the electric field orthogonal spurious components (?y, ?x) produced by the asymmetry of the OMT (21).
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: July 23, 2013
    Assignee: Thales
    Inventors: Pierre Bosshard, Philippe Lepeltier, Alain Lasserre, Sophie Verlhac
  • Publication number: 20130154764
    Abstract: In an example embodiment, an in-phase H-plane T-junction can comprise: a first waveguide port; a second waveguide port; a third waveguide port, wherein the third waveguide port can be a common port; and an E-plane septum. The first, second, and third waveguide ports can be in the H-plane and can be each connected to each other in a T configuration. The T-junction can be configured such that microwave signals in a first band can be in-phase with each other at the first and second waveguide ports, and microwave signals in a second band can be in-phase with each other at the first and second waveguide ports. The H-plane T-junction can be at least one of a power combiner and a power divider.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 20, 2013
    Applicant: VIASAT, INC.
    Inventor: VIASAT, INC.
  • Patent number: 8461939
    Abstract: A waveguide orthomode transducer includes a waveguide including a first waveguide portion and a second waveguide portion placed along a transmission direction of radio signals, the size of an aperture of the second waveguide portion smaller than the size of an aperture of the first waveguide portion, a first probe disposed at a first position, a second probe disposed at a second position, a third probe disposed at a third position, and a fourth probe disposed at a fourth position, wherein at least two of the first position, the second position, the third position, and the fourth position are located in the same plane perpendicular to the transmission direction of the radio signals.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: June 11, 2013
    Assignee: Wistron NeWeb Corporation
    Inventors: I-Ching Lan, Chung-Min Lai, Chang-Hsiu Huang
  • Patent number: 8433257
    Abstract: A method and system for an integrated transceiver is presented. The integrated transceiver includes a transceiver housing, where a waveguide is formed inside the transceiver housing using a transceiver housing and a sub-floor component. Neither transceiver housing nor the sub-floor component alone is configured to operate as a waveguide. The integrated transceiver can include a transceiver housing that forms a portion of an integrated waveguide assembly, where the transceiver housing alone does not form the waveguide, and another portion of the integrated waveguide assembly couples with the transceiver housing to form the waveguide of the integrated waveguide assembly. Further, the integrated waveguide portion of the sub-floor component can be a flat surface, where the integrated waveguide portion of the transceiver housing comprises substantially all the features of said integrated waveguide.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: April 30, 2013
    Assignee: ViaSat, Inc.
    Inventors: David Laidig, Kenneth V. Buer, Friedhelm Wachter
  • Patent number: 8410988
    Abstract: A dual mode rotary joint as described herein can be utilized in an electromagnetic communication system such as a radar system. The dual mode rotary joint can be used to rotatably couple an antenna architecture to its mounting structure. One embodiment of the dual mode joint includes a waveguide configured to propagate radio frequency (RF) signals, and endcaps coupled to the ends of the waveguide. Each endcap is reflective for RF signals and transmissive for optical signals.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: April 2, 2013
    Assignee: The Boeing Company
    Inventors: Derek E. Iverson, Jonathan M. Saint Clair
  • Publication number: 20130038407
    Abstract: A waveguide E-plane filter component comprising a first main part and a second main part which in turn comprise a corresponding first and second waveguide section part. The main parts are arranged to be mounted to each other, each waveguide section part comprising a bottom wall, corresponding side walls and an open side, where the open sides are arranged to face each other. The waveguide E-plane filter component further comprises at least one electrically conducting foil that is arranged to be placed between the main parts, said foil comprising a filter part that is arranged to run between the waveguide section parts, the filter part comprising apertures, in said foil.
    Type: Application
    Filed: April 27, 2010
    Publication date: February 14, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Anatoli Deleniv, Piotr Kozakowski, Ove Persson
  • Patent number: 8350640
    Abstract: A transceiver module for a satellite antenna comprises a base and a cover. The base includes a transducer extending between a first end plate and a second end plate in a first direction, a first filter portion including a number or first grooves extending in the first direction and arranged along a second direction orthogonal to the first direction, and a waveguide to guide signals toward a third end plate. The cover serves as a second filter portion for the transceiver module and includes a number of second grooves arranged along the second direction. The base includes the transducer, the first filter portion and the waveguide as an integral member.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: January 8, 2013
    Assignee: Azure Shine International Inc.
    Inventor: Wen-Chao Shen
  • Patent number: 8344826
    Abstract: A phased-array antenna filter and diplexer for a super economical broadcast system are provided. The filter and diplexer includes a signal divider tee diplexer, a receive filter and a transmit filter. The diplexer includes a tee branch point, an antenna port, a transmit port and a receive port. The receive filter includes a flat, multi-pole bandpass filter, an input port and an output port, where the input port is coupled to the diplexer receive port to define a receive signal path, from the tee branch point to the receive input port, that has a length of approximately one quarter receive wavelength. The transmit filter includes a folded, multi-pole bandpass filter, an input port and an output port, where the output port is coupled to the diplexer transmit port to define a transmit signal path, from the tee branch point to the transmit output port, that has a length of approximately one quarter transmit wavelength.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: January 1, 2013
    Assignee: SPX Corporation
    Inventors: Chris Rossiter, Robert Dunning, Torbjorn Johnson
  • Publication number: 20120319798
    Abstract: Arrangement of resonators in an aperiodic configurations are described, which can be used for electromagnetic cloaking of objects. The overall assembly of resonators, as structures, do not all repeat periodically and at least some of the resonators are spaced such that their phase centers are separated by more than a wavelength. The arrangements can include resonators of several different sizes and/or geometries arranged so that each size or geometry corresponds to a moderate or high “Q” response that resonates within a specific frequency range, and that arrangement within that specific grouping of akin elements is periodic in the overall structure. The relative spacing and arrangement of groupings can be defined by self similarity and origin symmetry.
    Type: Application
    Filed: August 24, 2012
    Publication date: December 20, 2012
    Applicant: FRACTAL ANTENNA SYSTEMS, INC.
    Inventor: Nathan Cohen
  • Patent number: 8324985
    Abstract: An isolated dual-mode converter includes a TE01 mode converter including a circular waveguide, and a plurality of rectangular waveguides connected to the circumference of the circular waveguide; and a TM01 mode converter including a coaxial waveguide, formed by coaxial outer and inner conductors, and the circular waveguide connected and aligned axially with the coaxial waveguide, wherein a symmetrical axis of an opening at the end of the rectangular waveguides connected to the circular waveguide is parallel to the axis of the circular waveguide, thereby avoiding interfering with the propagation of TM01 mode. In an application, the isolated dual-mode converter outputs TE01 mode and TM01 mode at the same port, thereby achieving more uniform microwave heating. In another application, two isolated dual-mode converters are aligned face-to-face, forming a dual-channel joint with high channel isolation and low transmission loss, which may be used for a rotary joint of a radar system.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: December 4, 2012
    Assignee: National Tsing Hua University
    Inventors: Tsun-Hsu Chang, Nai-Ching Chen, Chun-Tan Wu
  • Patent number: 8258892
    Abstract: The present invention relates to a method and system for high-speed bandpass serial data communication. A driver receives at least one data signal and generates a bandpass data signal for transmission through a bandpass waveguide interconnect. The bandpass data signal is launched into the bandpass waveguide interconnect using a first adaptor and extracted therefrom after transmission using a second adaptor. A receiver connected to the second adaptor recovers the at least one data signal from the extracted bandpass data signal. A dispersion compensation circuit receives one of the at least one data signal and the bandpass data signal and information indicative of a phase response of the bandpass waveguide interconnect and dispersion compensates the one of the at least one data signal and the bandpass data signal by compensating the phase response of the bandpass waveguide interconnect.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: September 4, 2012
    Assignee: The Royal Institution for the Advancement of Learning/McGill University
    Inventors: Ramesh Abhari, Asanee Suntives, Gordon W. Roberts, Nathan Smith
  • Patent number: 8254851
    Abstract: A method and system for an integrated transceiver is presented. The integrated transceiver includes a transceiver housing, where a waveguide is formed inside the transceiver housing using a housing base and a sub-floor component. Neither the housing base nor the sub-floor component alone is configured to operate as a waveguide. In an exemplary embodiment, a portion of the waveguide is cast into the housing base and is part of the transceiver housing. Furthermore, in an exemplary embodiment, an antenna system includes a feed horn, a polarizer, the integrated transceiver, and a transceiver circuit that communicates with the waveguide to transmit and receive radio frequency signals. The integrated transceiver, in the exemplary embodiment, includes a transceiver housing base that forms a portion of an integrated waveguide assembly, and another portion of the integrated waveguide assembly aligns with the transceiver housing base to form the integrated waveguide assembly.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: August 28, 2012
    Assignee: ViaSat, Inc.
    Inventors: Dave Laidig, Kenneth V. Buer, Friedhelm Wachter
  • Patent number: 8229387
    Abstract: Provided is an even harmonic mixer which is reduced in cost and size. The even harmonic mixer includes: a transducer in which a conductor of a microstrip line is connected to a ground plane of a waveguide, for transducing an RF signal transmitted in a waveguide mode into a transmission mode of the microstrip line; an anti-parallel diode pair which is cascade-connected to a microstrip line side of the transducer, and formed on a semiconductor substrate; a branching circuit for branching an LO signal and an IF signal; an open-end stub which is disposed between the transducer and the anti-parallel diode pair, and has a line length of about ½ wavelength at an RF signal frequency; and an open-end stub which is disposed between the anti-parallel diode pair and the branching circuit, and has a line length of about ¼ wavelength at the RF signal frequency.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 24, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kenji Kawakami, Takuya Suzuki, Ko Kanaya, Yoichi Kitamura