Waveguide Elements And Components Patents (Class 333/248)
  • Patent number: 11011817
    Abstract: The present disclosure provides a waveguide-excited terahertz microstrip antenna. The antenna includes a dielectric substrate, a ground plate, a rectangular waveguide, a metal pin, and a radiation patch. The dielectric substrate has a first surface and a second surface opposite to the first surface. The ground plate is located on the first surface of the dielectric substrate and defines a coupling slit. The rectangular waveguide is located on a surface of the ground plate away from the dielectric substrate and extended substantially along a first direction parallel to the first surface. The metal pin is located inside the rectangular waveguide, and is in contact with the ground plate and substantially perpendicular to the ground plate. The radiation patch is located on the second surface of the dielectric substrate.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 18, 2021
    Inventors: Xiao-Ping Zheng, Xia-Hui Han, Sheng-Chuang Bai, Hua Geng, De-Jian Zhang, Jia-Ming Liu
  • Patent number: 10971792
    Abstract: Provided is a structure configured to electrically connect multi-layer dielectric waveguides, each including a dielectric waveguide formed of conductor patterns and vias in a laminating direction of the multi-layer dielectric substrate, in which the vias for forming part of a waveguide wall of each of the dielectric waveguides are arranged in a staggered pattern in the multi-layer dielectric substrate side having choke structures formed so as to electrically connect the waveguides to each other.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: April 6, 2021
    Inventors: Hideharu Yoshioka, Yasuo Morimoto, Naofumi Yoneda, Akimichi Hirota, Tomokazu Hamada, Tsuyoshi Hatate
  • Patent number: 10862219
    Abstract: An antenna comprising: a variable dielectric constant (VDC) layer; a plurality of radiating patches provided over the VDC layer; a plurality of signal lines, each terminating in alignment below one of the radiating patches; a plurality of control lines, each corresponding to one of the signal lines; a ground plane; wherein the VDC layer comprises a plurality of liquid crystal sublayers stacked on each other.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: December 8, 2020
    Assignee: WAFER LLC
    Inventors: Dedi David Haziza, Eliyahu Harush
  • Patent number: 10790319
    Abstract: A TFT substrate includes a gate metal layer including a gate electrode of a TFT and a patch electrode, a gate insulating layer formed on the gate metal layer and including a first opening at least reaching the patch electrode, a source metal layer formed on the gate insulating layer, and including a source electrode of the TFT, a drain electrode, and a drain extending section extending from the drain electrode, an interlayer insulating layer formed on the source metal layer, and including a second opening overlapping the first opening when viewed from a normal direction of a dielectric substrate and a third opening at least reaching the drain extending section, and a conductive layer formed on the interlayer insulating layer and including a patch drain connection section. The patch drain connection section is in contact with the patch electrode within the first opening and in contact with the drain extending section within the third opening.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: September 29, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Katsunori Misaki
  • Patent number: 10784554
    Abstract: Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a core for propagating electromagnetic waves guided by the core without an electrical return path, a rigid material surrounding the core, wherein an inner surface of the rigid material is separated from an outer surface of the core, and a conductive layer disposed on the rigid material. Other embodiments are disclosed.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: September 22, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Robert Bennett, Paul Shala Henry, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10777864
    Abstract: A networking system includes a transmitter, a waveguide and a receiver. The transmitter is configured to generate a millimeter-wave signal carrying data. The waveguide is transmissive at millimeter-wave frequencies and is configured to receive the millimeter-wave signal from the transmitter, and to guide the millimeter-wave signal from the transmitter to a downstream location by having a dielectric constant that varies over a transversal cross-section of the waveguide in accordance with a predefined profile. The receiver is configured to receive the millimeter-wave signal guided by the waveguide, and to extract the data carried by the received millimeter-wave signal.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: September 15, 2020
    Assignee: MARVELL ASIA PTE, LTD.
    Inventors: Sai-Wang Tam, Alden C. Wong
  • Patent number: 10615478
    Abstract: In accordance with an embodiment of the present disclosure, there is provided a technique of using probe fed apertures to realize a waveguide feeding network that can be divided both parallel to the surface, and on different levels, of a co-fired ceramic substrate, such as a low temperature co-fired ceramic (LTCC) substrate. A horizontal feed network is divided into several sections, which can be stacked vertically in various different locations and on different layers within the substrate, and are connected by probe-fed apertures. In this way, waveguide dividing can be performed in directions that are parallel to the surface of the substrate and on different levels of the substrate, thereby increasing the efficiency of the use of the substrate volume and permitting dividing and combining of inputs and outputs in a more flexible manner.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 7, 2020
    Assignee: TDK Corporation
    Inventor: Ebrahim Forati
  • Patent number: 10587026
    Abstract: Embodiments herein relate to a fully integrated broadband interconnect. The system comprises a first integrated circuit, a second integrated circuit, and a coupler structure to connect the first and second integrated circuits, where the coupler structure includes a base portion and a top portion that are connected by two vertical walls. The top portion has a gap that increases a strength of a transverse electric field across the gap when the coupler structure is operating in an odd higher order mode that is horizontally polarized, where the coupler structure is full of a dielectric material, and where the cross-sectional width of the coupler structure is tapered in a direction of wave propagation. The system further comprises a dielectric waveguide attached to the top portion of the coupler structure, where the dielectric waveguide supports the odd higher order mode and an even higher order mode.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 10, 2020
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jack W. Holloway, Ruonan Han
  • Patent number: 10505248
    Abstract: In accordance with one or more embodiments, a method includes: receiving, at a stranded cable, a communication signal and a medium voltage power signal; propagating, by the stranded cable, the medium voltage power signal as an electrical signal utilizing an electrical return path; and propagating, by the stranded cable and responsive to the communication signal, guided electromagnetic waves, wherein the guided electromagnetic waves are guided by an interstice between uninsulated strands of the stranded cable and propagate within the stranded cable without requiring the electrical return path.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: December 10, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III, Robert Bennett, Irwin Gerszberg, Farhad Barzegar, Donald J. Barnickel, Martin Birk, Shikik Johnson
  • Patent number: 10468738
    Abstract: An illustrative example electronic device includes a substrate integrated wave guide (SIW) comprising a substrate and a plurality of conductive members in the substrate. An antenna member is situated at least partially in the substrate in a vicinity of at least some of the plurality of conductive members. A signal generator has a conductive output electrically coupled with the antenna member. The antenna member radiates a signal into the SIW based on operation of the signal generator.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: November 5, 2019
    Inventors: George J. Purden, Shawn Shi
  • Patent number: 10389033
    Abstract: A horn antenna comprises an electrically conductive shell having an inner surface, a cavity formed in the shell, an aperture defined at one end of the cavity, a throat section coupled to the electrically conductive shell in communication with another end of the cavity opposite the aperture, and a spatially and frequency dependent radio frequency (RF) attenuator disposed within the cavity, such that an attenuation of RF energy propagating through the cavity between the throat section and the aperture more rapidly increases in an outward direction towards the inner surface of the electrically conductive shell as the frequency of the RF energy increases.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: August 20, 2019
    Assignee: The Boeing Company
    Inventors: Douglas P. Morgan, Baird E. Perry
  • Patent number: 10371716
    Abstract: A structure for performing socket power calibration comprises a plurality of socket ports on a load board electrically coupled to a plurality of traces on a first end of a flexible printed circuit board, wherein the plurality of traces are configured to allow traversal of an electrical signal from the plurality of socket ports to a waveguide. The structure further comprises the plurality of traces, wherein the traces are operable to terminate on a second end of the flexible printed circuit board into a plurality of patch antennas, wherein the plurality of patch antennas is adapted to radiate the electrical signal into the waveguide. Finally, the structure also comprises a power sensor electrically coupled to the waveguide, wherein the waveguide is configured to communicate the electrical signal from the waveguide to the power sensor.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 6, 2019
    Inventors: Donald Lee, Daniel Lam
  • Patent number: 10347957
    Abstract: A hollow conductor system is described which comprises at least two hollow conductor bundles and at least two connecting members. Each hollow conductor bundle comprises at least two hollow conductors separated by each other via a common intermediate wall. Each connecting member connects one hollow conductor of one hollow conductor bundle with a corresponding hollow conductor of the other hollow conductor bundle such that a void is provided between the connecting member and the adjacent connecting member and/or an adjacent hollow conductor. Further, a method for assembling a hollow conductor system is described.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 9, 2019
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Andreas Raith, Markus Voegerl
  • Patent number: 10256537
    Abstract: A lens-enhanced phased array antenna panel includes a phased array antenna panel and at least one lens situated over the phased array antenna panel. The phased array antenna panel has a plurality of antennas arranged in a plurality of antenna segments. Each lens corresponds to at least one of the antenna segments. Each lens is configured to increase a gain of its corresponding antenna segment. Each lens increases a total gain of the phased array antenna panel. Additionally, each lens can provide an angular offset to direct a radio frequency (RF) beam onto its corresponding antenna segment.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: April 9, 2019
    Assignee: Movandi Corporation
    Inventors: Alfred Grau Besoli, Seunghwan Yoon, Ahmadreza Rofougaran, Farid Shirinfar, Sam Gharavi, Michael Boers, Maryam Rofougaran
  • Patent number: 10128685
    Abstract: A load accumulator for a cellular base station antenna includes a plurality of input terminals configured to receive a plurality of input voltages, a plurality of output terminals configured to be coupled to a respective plurality of tower top equipment and configured to supply output voltages to the tower top equipment, a plurality of switches coupled to respective ones of the plurality of input terminals and the plurality of output terminals; a voltage sensor coupled to at least one input terminal of the plurality of input terminals and configured to sense a level of one of the plurality of input voltages received at the at least one input terminal, a supplemental input terminal configured to receive a supplemental voltage, and a control logic coupled to the voltage sensor and to the plurality of switches and configured to detect that the supply voltage supplied to the at least one input terminal has fallen below a threshold voltage, and in response to detecting that the supply voltage supplied to the at le
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: November 13, 2018
    Assignee: CommScope Technologies LLC
    Inventor: John T. Hanley
  • Patent number: 10084221
    Abstract: An RF frequency window comprises a dielectric disc, a main metal skirt brazed all the way around the periphery of the dielectric disc and a surrounding prestressing ring in contact with the main metal skirt around the periphery of the dielectric disc and applying, in the rest state, over the whole of the periphery of the dielectric disc, a radial compressive stress directed towards the center of the dielectric disc, the prestressing ring comprising a set of at least one cooling channel in the longitudinal direction of the prestressing ring.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 25, 2018
    Assignee: THALES
    Inventor: Philippe Denis
  • Patent number: 10027004
    Abstract: An apparatus includes a waveguide. The waveguide includes a waveguide wall having a shape associated with a dominant propagation mode. The waveguide includes a first dielectric material having a cross-sectional area that varies along a length of a portion of the waveguide.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 17, 2018
    Inventors: Larry L. Savage, Ted R. Dabrowski, Corey M. Thacker
  • Patent number: 10027031
    Abstract: Lower-limit frequency reflection characteristics of a horn antenna are improved even though element spacing, of less than or equal to one wavelength, is a spacing at which grating lobes do not occur in an antenna radiation pattern. The horn antenna includes a horn antenna and a conductor grid that divides an aperture A of the horn antenna in a grid pattern and that electrically connects to an inner surface of the horn antenna at the aperture A of the horn antenna. Width of the conductor grid in a direction orthogonal to a horn antenna aperture plane differs from electrical length of the path of the horn antenna of the conductor grid portion at the frequency of power supplied to the horn antenna.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: July 17, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinji Arai, Tomohiro Takahashi
  • Patent number: 10014572
    Abstract: An antenna device of the present disclosure includes: a dielectric layer; first and second conductor layers provided on both surfaces, respectively, of the dielectric layer; first and second antenna elements provided in the first conductor layer; a grounded conductor provided in the second conductor layer; and an EBG structure provided between the first and second antenna elements, wherein the EBG structure includes a first EBG portion provided in the first conductor layer, the first EBG portion including a plurality of first patch conductors electromagnetically coupled to the grounded conductor, and a second EBG portion provided in the second conductor layer, the second EBG portion including a plurality of second patch conductors electromagnetically coupled to the grounded conductor.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: July 3, 2018
    Inventors: Hiroyoshi Tagi, Hideki Iwaki
  • Patent number: 9917345
    Abstract: A method for fabricating and installing an artificial impedance surface antenna (AISA) includes locating a substantially flat surface having a line of sight to a satellite or satellites of interest, determining an angle ?o between a normal to the substantially flat surface and a direction to the satellite or satellites of interest, selecting an antenna superstrate from a pre-fabbed stock of antenna superstrates, the selected antenna superstrate configured for having a peak radiation within two (2) degrees of the angle ?o, laminating the selected antenna superstrate to an antenna substrate to form the AISA, and mounting the AISA on the substantially flat surface.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: March 13, 2018
    Assignee: HRL Laboratories, LLC
    Inventors: Daniel J. Gregoire, Joseph S. Colburn
  • Patent number: 9851436
    Abstract: A radar antenna assembly suitable to mount atop a vehicle as part of a radar system for the vehicle includes a horizontal array and a vertical array. The horizontal array is configured to preferentially detect objects in a forward area and a rearward area about the vehicle. The vertical array is configured to preferentially detect objects in a leftward area and a rightward area about the vehicle. The horizontal array and the vertical array cooperate to detect an object in a panoramic area that surrounds the vehicle.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: December 26, 2017
    Inventor: Shawn Shi
  • Patent number: 9837697
    Abstract: A radio frequency transmission arrangement comprises a ground plate having an aperture comprising a slot with an elongate cross-section and substantially parallel sides, and a first and second transmission line. The thickness of the ground plate is greater than a width of the slot. The first transmission line comprises a first elongate conductor on a first side of the ground plate and has an end terminated with a first termination stub. The second transmission line comprises a second elongate conductor on the opposite side of the ground plate and has an end terminated with a second termination stub. The first transmission line is arranged to cross the slot at a point adjacent to the first termination stub, and the second transmission line is arranged to cross the slot at a point adjacent to the second termination stub.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: December 5, 2017
    Assignee: Cambium Networks Limited
    Inventors: Peter Strong, Adam Wilkins, Carl Morrell, Paul Clark, Nigel Jonathan Richard King
  • Patent number: 9681308
    Abstract: The disclosed embodiments include methods and systems for distributing a broadband wireless signal in a building. The disclosed methods and systems feature a wireless broadband transmitter associated with multiple base antennas, where the base antennas are inserted into one or more ducts of the ventilation system of the building. Communication between the transmitter and receivers within the building may be optimized by selecting, modifying or controlling a configuration parameter of at least one of the multiple base antennas to enhance distribution of the wireless broadband signal within the ducts of the ventilation system and between the transmitter and device receivers.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: June 13, 2017
    Assignee: CenturyLink Intellectual Property LLC
    Inventor: Thomas Schwengler
  • Patent number: 9634398
    Abstract: The present invention discloses a Cassegrain satellite television antenna comprising a metamaterial plate. The metamaterial plate comprises a core layer. The core layer comprises core sublayers. Each core sublayer comprises a circular area and a plurality of annuli distributed around the circular area. According to the Cassegrain satellite television antenna of the present invention, the traditional parabolic antenna is replaced with a sheet-like metamaterial plate which is easier to process and has a lower cost. In addition, the present invention also provides a satellite television receiving system equipped with the above-mentioned Cassegrain satellite television antenna.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: April 25, 2017
    Inventors: Ruopeng Liu, Chunlin Ji, Yutao Yue, Jinjin Wang, Yunnan Hong
  • Patent number: 9585203
    Abstract: In a microwave heating device of the present invention, a heating-chamber input portion is adapted to direct, to a heating chamber, microwaves having propagated through a waveguide tube and having passed through the positions where microwave radiating portions are formed, thereby realizing a state where progressive waves are dominant among the microwaves propagating through the waveguide tube, so that the microwave radiating portions are caused to radiate, to the inside of the heating chamber, microwaves based on the progressive waves propagating through the waveguide tube. This enables uniformly heating an object to be heated, without using a rotational mechanism.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: February 28, 2017
    Inventors: Masafumi Sadahira, Daisuke Hosokawa, Koji Yoshino, Tomotaka Nobue, Yoshiharu Omori
  • Patent number: 9564777
    Abstract: Described herein are devices, systems, and methods for wireless power transfer utilizing a midfield source and implant. In one variation, a midfield source may be realized by a patterned metal plate composed of one of more subwavelength structures. These midfield sources may manipulate evanescent fields outside a material (e.g., tissue) to excite and control propagating fields inside the material (e.g., tissue) and thereby generate spatially confined and adaptive energy transport in the material (e.g., tissue). The energy may be received by an implanted device, which may be configured for one or more functions such as stimulation, sensing, or drug delivery.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: February 7, 2017
    Assignee: NeuSpera Medical Inc.
    Inventors: Alexander Jueshyan Yeh, Milton M. Morris
  • Patent number: 9559424
    Abstract: Various exemplary embodiments relate to an antenna feed configured to receive a signal having a wavelength. They antenna feed may include a cylindrical body and four pin groups. Each pin group may include two pins in close proximity extending across the center of the cylindrical body. One of the two pins may be rotated approximately 22.5° from the angle of the other pin. Each pin group may be spaced approximately one quarter of a wavelength away from each other, and may be rotated approximately 22.5° from the angle of the previous pin group.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: January 31, 2017
    Assignee: Alcatel Lucent
    Inventor: James W. Nelson
  • Patent number: 9531051
    Abstract: A board connection structure includes an opening, which is formed at a perimeter of a waveguide in a first board, and an opening, which is formed at a perimeter of a waveguide in a second board. The openings are connected to each other. The first board and the second board are connected with an insulation film disposed therebetween. The insulation film has a thickness of 60% or less of a waveguide width that determines a propagation mode in at least one of the waveguide in the first board and the waveguide in the second board.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: December 27, 2016
    Inventors: Tomohiro Murata, Takeshi Fukuda
  • Patent number: 9437913
    Abstract: Provided is an input/output structure for a dielectric waveguide, comprising a rectangular-parallelepiped-shaped dielectric block, a plate-shaped dielectric plate, and a feeder line comprising a line-shaped electrically conductive foil sandwiched between the dielectric block and the dielectric plate.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 6, 2016
    Assignee: TOKO, INC.
    Inventor: Yukikazu Yatabe
  • Patent number: 9246204
    Abstract: An artificial impedance surface for rotating a surface wave on the artificial surface about a point along a circumferential path relative to said point in a phase preserving manner along said circumferential path. A method of guiding a transverse electric or transverse magnetic surface wave bound to an artificial impedance surface along a non-linear path comprising: smoothly rotating a principal axis of a surface tensor impedance matrix of the artificial impedance surface as a function of space, so the a propagation wavevector of the transverse electric or transverse magnetic surface wave rotates along with it, remaining aligned with the direction of the principal axis; and tailoring a surface wavenumber in a propagation direction of the non-linear path in such a way as to maintain a constant-phase for a wavefront of the transverse electric or transverse magnetic surface wave.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: January 26, 2016
    Assignee: HRL Laboratories, LLC
    Inventor: Adour V. Kabakian
  • Patent number: 9024706
    Abstract: Electromagnetic slow wave structures (SWS) comprised of arrays of conductive obstacles are formed inside conductive parallel-plate waveguides These SWS may be formed using, for example, MEMS manufacturing processes at the wafer level on substrates including ceramic and silicon. An effective relative permittivity in the range of 15 to 40 may be obtained at millimeterwave frequencies. The SWS can be made absorptive by incorporating resistive losses in a plate of the PPW. Applications of these slow wave structures include delay lines and bootlace lens beamformers for microwave and millimeterwave antenna systems.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: May 5, 2015
    Assignee: Wemtec, Inc.
    Inventor: William E. McKinzie, III
  • Publication number: 20150070109
    Abstract: An isothermal terminator system is provided. The isothermal terminator includes a waveguide formed to define a propagation channel through which electro-magnetic (EM) radiation is directed and a terminator including a body having an exterior surface and an interior surface opposite the exterior surface. The terminator is disposed in the propagation channel such that the EM radiation is incident on the exterior surface to raise a temperature of the body. The body is substantially isothermal with the EM radiation incident on the exterior surface.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 12, 2015
    Applicant: Raytheon Company
    Inventors: Clifford Burnes, Ryan D. Dewitt
  • Publication number: 20150061789
    Abstract: This topic is related to a waveguide propagation apparatus, converting microstrip propagation to waveguide propagation, providing hermeticity on the mounting area, eliminating the cabling component causing degradation on the overall performance, involving at least a microwave module (2), and comprising a combination of a base part (3) and a cover part (4).
    Type: Application
    Filed: January 23, 2013
    Publication date: March 5, 2015
    Inventors: Zafer Tanc, Eyup Tongel, Arda Ozgen
  • Patent number: 8952678
    Abstract: In a gap-mode waveguide embodiment, an interior gap in a tubular waveguide principally condenses a dominant gap mode near the interior gap, and an absorber dissipates electromagnetic energy away from the gap mode. In this manner, the gap mode may dissipate relatively little power in the absorber compared to other modes and propagate with lesser attenuation than all other modes. A gap mode launched into a gap-mode waveguide may provide for low-loss, low-dispersion propagation of signals over a bandwidth including a multimode range of the waveguide. Gap-mode waveguide embodiments of various forms may be used to build guided-wave circuits covering broad bandwidths extending to terahertz frequencies.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: February 10, 2015
    Inventor: Kirk S. Giboney
  • Publication number: 20150008994
    Abstract: An object of the present invention is to provide an interface apparatus which can suppress leakage of electromagnetic waves and supply electromagnetic waves efficiently without limiting applications or mounting positions. An interface apparatus (200) is provided that supplies electromagnetic waves to a sheet-shaped electromagnetic wave transmission medium for propagating electromagnetic waves and includes a first conductor surface, a second conductor surface disposed in an opposed state to and substantially parallel with the first conductor surface, electromagnetic wave supplying means (230) configured to supply electromagnetic waves to a gap between the first and second conductor surfaces, a first structure (240), and a second structure (250).
    Type: Application
    Filed: November 26, 2012
    Publication date: January 8, 2015
    Applicant: NEC CORPORATION
    Inventors: Naoki Kobayashi, Tsuneo Tsukagoshi, Koichiro Nakase, Hiroshi Fukuda
  • Publication number: 20150008993
    Abstract: A waveguide coupler comprising: a first coupling portion arranged to couple with a first waveguide and a second coupling portion arranged to couple with a second waveguide so as to connect the first waveguide and the second waveguide together; wherein arranged between the first and second coupling portions is a wave modulation portion arranged to modulate wave signals transferred between the first waveguide and the second waveguide.
    Type: Application
    Filed: June 6, 2014
    Publication date: January 8, 2015
    Inventors: Sai Tak Chu, Peng Zhou, Jacky Ping Yuen Tsui
  • Publication number: 20140361857
    Abstract: Various embodiments provide for waveguide assemblies which may be utilized in wireless communication systems. Various embodiments may allow for waveguide assemblies to be assembled using tools and methodologies that are simpler than the conventional alternatives. Some embodiments provide for a waveguide assembly that comprises a straight tubular portion configured to be shortened, using simple techniques and tools, in order to fit into a waveguide assembly. For instance, for some embodiments, the waveguide assembly may be configured such that the straight portion can be shortened, at a cross section of the portion, using a basic cutting tool, such a hacksaw. In some embodiments, the straight portion may be further configured such that regardless of whether the straight tubular portion is shortened, the waveguide assembly remains capable of coupling to flanges, which facilitate coupling the straight tubular portion to connectable assemblies, such as other waveguide assemblies, radio equipment, or antennas.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Inventors: Edwin Nealis, Jayesh Nath
  • Patent number: 8897695
    Abstract: The design and use of a simplified, highly efficient, waveguide-based wireless distribution system are provided. A low-loss waveguide is used to transport wireless signals from a signal source or sources to one or more receiver locations. One or more adjustable signal coupling devices partially insert into the waveguide at predetermined locations along the length of the system to provide variable, controlled extraction of one or more wireless signals. Low-loss impedance matching circuitry is provided between the waveguide coupling devices and output connectors to maintain high system efficiency and the capability of supplying signals of high strength and quality to a large number of receivers in a wide wireless coverage area via a plurality of signal radiators. Some embodiments of the system are adaptable for wireless distribution service in HVAC plenum spaces while others disclose the combined functions of fire extinguishing and waveguide wireless distribution.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: November 25, 2014
    Assignee: Wireless Expressways Inc.
    Inventor: Charles D. Becker
  • Patent number: 8896400
    Abstract: An ultrathin, low cost, beamformer with excellent RF performance and robust coaxial connections is disclosed. The beamformer includes a dielectric substrate sheet with a beamformer circuit, a preform sheet adjacent to the substrate sheet, and a conductive backing plate sandwiching the preform as well as an RF absorber. The beamformer also includes robust input and output coaxial connections in which the heads of the coaxial input and output pins are captured between the conductive backing plate and the substrate sheet and ground shrouds are attached to the dielectric substrate sheet.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: November 25, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: Daniel W. Harris, Andrew R. Mandeville
  • Publication number: 20140292438
    Abstract: [Technical Problem] In a dielectric waveguide input/output structure for performing conversion from a dielectric waveguide through a microstrip to a coaxial line, the conversion is performed once to the microstrip line, and then further to the coaxial line, resulting in a greater loss. Thus, there has been a problem that degradation in performance is unavoidable. Further, the microstrip is required to have a certain level or more of length so as to prevent reduction in size of the printed circuit board. This has been an impediment to downsizing of the input/output structure. [Solution to the Problem] Provided is an input/output structure for a dielectric waveguide, comprising a rectangular-parallelepiped-shaped dielectric block, a plate-shaped dielectric plate, and a feeder line comprising a line-shaped electrically conductive foil sandwiched between the dielectric block and the dielectric plate.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: TOKO, INC.
    Inventor: Yukikazu YATABE
  • Publication number: 20140285289
    Abstract: A horn antenna is formed within a multilayer substrate and has a generally trapezoidal shaped top plate and bottom plate formed in different layers of the multilayer substrate. A set of densely spaced vias form two sidewalls of the horn antenna by coupling adjacent edges of the top plate and the bottom plate. The horn antenna has a narrow input end and a wider flare end. A microstrip line is coupled to the top plate and a ground plane element is coupled to the bottom plate at the input end of the horn antenna.
    Type: Application
    Filed: April 1, 2013
    Publication date: September 25, 2014
    Inventor: Texas Instruments Incorporated
  • Publication number: 20140252886
    Abstract: Disclosed are various embodiments for transmitting energy conveyed in the form of a guided surface-waveguide mode along the surface of a terrestrial medium by exciting a polyphase waveguide probe.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Inventors: James F. Corum, Kenneth L. Corum
  • Patent number: 8823471
    Abstract: Certain exemplary embodiments can provide a rectangular waveguide and backshort adapted for using/studying millimeter and/or submillimeter waves. Exemplary sliding shorts can exhibit relatively low loss, relatively smooth phase variation with frequency and movement, and/or relatively good repeatability. Certain exemplary embodiments can resist transmission of power by reflecting substantially all power from an incident signal.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: September 2, 2014
    Inventors: James Stanec, Nicholas S Barker
  • Patent number: 8803639
    Abstract: A heat insulating transmission line includes a first waveguide with a first aperture end, a second waveguide with a second aperture end, and a reflector. The second waveguide is arranged coaxially with the first waveguide. The second aperture end faces the first aperture end through an air gap. The reflector is provided outside the air gap, and controls radiation power from the air gap. In addition, the reflector is substantially parallel to a portion of a virtual plane connecting an inner wall of the first aperture end of the first waveguide and an inner wall of the second aperture end of the second waveguide. When a mean frequency of a signal transmitting through the heat insulating transmission line is expressed as ?, a distance between the virtual surface and the reflector is not less than N×?/2?0.05? and not more than N×?/2+0.2? (N is a positive integer).
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: August 12, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tamio Kawaguchi, Hiroyuki Kayano, Noritsugu Shiokawa, Kohei Nakayama
  • Patent number: 8803638
    Abstract: A microwave device having a narrow gap between two parallel surfaces of conducting material by using a texture or multilayer structure on one of the surfaces. The fields are mainly present inside the gap, and not in the texture or layer structure itself, so the losses are small. The microwave device further comprises one or more conducting elements, such as a metal ridge or a groove in one of the two surfaces, or a metal strip located in a multilayer structure between the two surfaces. The waves propagate along the conducting elements. At least one of the surfaces is provided with means to prohibit the waves from propagating in other directions between them than along the ridge, groove or strip. At very high frequency the gap waveguides and gap lines may be realized inside an IC package or inside the chip itself.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: August 12, 2014
    Assignee: Kildal Antenna Consulting AB
    Inventor: Per-Simon Kildal
  • Patent number: 8797126
    Abstract: The present invention relates to a tunable microwave arrangement (100) comprising a waveguide arrangement and tuning elements comprising a number of varactors for tuning an electromagnetic signal input to the waveguide arrangement. It comprises a substrate (1), a layered structure (20) comprising at least two conducting layers (2,3) and at least one dielectric layer (4) which are arranged in an alternating manner. The layered structure is arranged on the substrate (1) such that a first of said conducting layers (2) is closest to the substrate (1). It also comprises at least one surface mounted waveguide (5), a second of the conducting layers (3), most distant from the substrate, being adapted to form a wall of the surface mounted waveguide (5), which wall incorporates said tuning elements which are arranged to enable control of surface currents generated in said wall, hence loading the waveguide (5) with a tunable, controllable impedance.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: August 5, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Spartak Gevorgyan, Anatoli Deleniv, Thomas Lewin, Per Ligander
  • Patent number: 8773225
    Abstract: An apparatus includes: an electromagnetic waveguide and an iris structure providing an iris in the electromagnetic waveguide. The iris structure defines an iris hole. The apparatus further includes an electric field rotation arrangement configured to establish a 2N-pole electric field around a circumference of the iris hole, wherein N is an integer which is at least two. The electric field rotation arrangement may include at least four iris slots, each in communication with the iris hole, wherein a first one of the iris slots is further in disposed at a first side of the iris hole and a second one of the iris slots is disposed at a second side of the iris hole which is opposite the first side.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 8, 2014
    Assignee: Agilent Technologies, Inc.
    Inventors: Mehrnoosh Vahidpour, Miao Zhu, Geraint Owen
  • Patent number: 8729979
    Abstract: Dielectric waveguide comprising a circular input/output electrode on its bottom surface and surrounded by an exposed dielectric portion thereof around which a conductor film is disposed. A short stub crosses through the exposed dielectric portion to couple the electrode and film together. The printed circuit board has a front surface formed with a generally-circular island-shaped electrode surrounded by a front surface-side ground pattern in a spaced-apart relation thereto, and a back surface formed with a strip line surrounded by a back surface-side ground pattern in spaced-apart relation thereto. An approximate center of the island-shaped electrode and one end of the strip line are coupled together, and the front surface-side ground pattern and the back surface-side pattern are coupled together. The input/output electrode of the dielectric waveguide and the island-shaped electrode of the printed circuit board are coupled together.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: May 20, 2014
    Assignee: Toko, Inc.
    Inventors: Hiroshi Kojima, Takayuki Yabe, Kazuhiro Ito
  • Publication number: 20140097919
    Abstract: A waveguide member assembly includes a side plate and a waveguide member. The side plate defines an opening. The waveguide member includes a main body molded integrally by plastic. The main body includes a core portion and a mounting plate extending out from edges of a side of the core portion. The core portion includes a number of waveguide tubes aligning with the opening. A metal layer is coated on an outer side of the main body and inner sidewalls of the waveguide tubes. The mounting plate is fastened to the side plate.
    Type: Application
    Filed: November 1, 2012
    Publication date: April 10, 2014
    Inventor: JUN-WEI WANG
  • Patent number: RE45519
    Abstract: A right circular cylindrical body of an isotropic dielectric such as a cross-linked styrene copolymer, has respective pluralities of mutually parallel grooves formed in its axial end faces, spaced apart by an intermediate portion whose dimension c is a half wavelength. The axial lengths a, b of the grooves are such that when a wave passes through the body, a quarter wavelength phase difference is produced between a component of a wave having its E-vector parallel to the grooves and a component of the wave having its E-vector orthogonal to the grooves. Alternatively the plate may consist of two or more discrete bodies whose grooves are dimensioned to produce a total differential phase shift of one quarter wavelength.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 19, 2015
    Assignee: MBDA UK Limited
    Inventor: Charles Anthony Rowatt