Using Waveguide Patents (Class 333/137)
  • Patent number: 10833380
    Abstract: The present disclosure provides systems and methods associated with mode conversion for electromagnetic field modification. A mode converting structure (holographic metamaterial) is formed with a distribution of dielectric constants chosen to convert an electromagnetic radiation pattern from a first mode to a second mode to attain a target electromagnetic radiation pattern that is different from the input electromagnetic radiation pattern. A solution to a holographic equation provides a sufficiently accurate approximation of a distribution of dielectric constants that can be used to form a mode converting device for use with one or more transmission lines, such as waveguides. One or more optimization algorithms can be used to improve the efficiency of the mode conversion.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: November 10, 2020
    Assignee: Elwha LLC
    Inventors: Tom Driscoll, John Desmond Hunt, Nathan Ingle Landy, David R. Smith, Yaroslav A. Urzhumov
  • Patent number: 10797371
    Abstract: Conduit structures for redirecting extremely high frequency (EHF) signals are disclosed herein. The conduit structures discussed herein are designed to re-direct EHF or RF signal energy from a first signal path to a second signal path. The conduit structures according to embodiments discussed herein can re-direct the RF signal energy while simultaneously adhering to specified signaling characteristic of the RF signal and minimizing stray RF signal radiation within a device to support device-to-device contactless communications.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: October 6, 2020
    Assignee: KEYSSA SYSTEMS, INC.
    Inventors: Alan Besel, Eric Sweetman, Bojana Zivanovic
  • Patent number: 10777878
    Abstract: According to an embodiment of the present invention, there is provided a radome, including a cover part configured to cover a printed circuit board (PCB) on which a plurality of antenna arrays and an integrated circuit (IC) chip connected to the plurality of antenna arrays are formed, and a plurality of projection parts on an inner side of the cover part opposite to the PCB.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: September 15, 2020
    Assignees: LG INNOTEK CO., LTD., INDUSTRY FOUNDATION OF SOGANG UNIVERSITY
    Inventors: Cheol Bok Kim, Haeng Seon Lee, Jeong Hoon Cho
  • Patent number: 10720686
    Abstract: A novel miniaturized horizontal split-wave orthomode transducer includes a common channel portion, a first polarized channel portion and a second polarized channel portion, and the centers of the openings of the first polarized channel and the second polarized channel are coaxially and respectively arranged on two opposite sides of the common channel portion to save the bend and extended structure at the rear end of the horizontal split-wave orthomode transducer and also save the occupied space since there is no need to guide signals in one of the polarization directions to the rear and return the signals, so as to further achieve the effects of improving the flexibility of installing the transducer, providing a good isolation between electromagnetic signals in different polarization directions and preventing the interference occurred between the electromagnetic signals.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: July 21, 2020
    Inventors: Yu-Cheng Chen, Xuan-Wei Zhang, Jen-Ti Peng, Hsiu-Yun Liu, Wei-Chen Chien, Hsueh-Han Chen, Tsung-Hsien Tsai
  • Patent number: 10693235
    Abstract: Various embodiments are described that relate to patch antenna elements and parasitic feed pads. A patch antenna element can have a resistance and reactance. The resistance can be desirable while the reactance can be undesirable. To counteract the reactance, a parasitic feed pad can be placed near the patch antenna element and the parasitic feed pad produces a capacitance. The capacitance balances out the reactance to cancel out one another. When two patch antenna elements and two parasitic feed elements are employed in one antenna stack, the stack antenna can function as a dual band antenna.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 23, 2020
    Assignee: The Government of the United States, as represented by the Secretary of the Army
    Inventor: Shuguang Chen
  • Patent number: 10670810
    Abstract: A dual polarized waveguide device includes a first waveguide that defines a first linear signal propagation path, a second waveguide that defines a second linear signal propagation path that is parallel to the first linear signal propagation path, and a polarization selective coupling interface coupling the first and second waveguides, the polarization selective coupling interface being configured to enable horizontally polarized signals to pass between the first and second linear propagation paths and prevent vertically polarized signals from passing between the first and second linear propagation paths.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: June 2, 2020
    Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.
    Inventors: Ahmed A. Sakr, Walid M. G. Dyab, Ke Wu
  • Patent number: 10658726
    Abstract: Aspects of the subject disclosure may include, generating, by a first hollow waveguide coupled to a first dielectric coupler, a first electromagnetic wave that couples onto a transmission medium, generating, by a second hollow waveguide coupled to a second dielectric coupler, a second electromagnetic wave that couples onto the transmission medium, combining the first electromagnetic wave and the second electromagnetic wave combine to form a combined electromagnetic wave that propagates along the transmission medium without requiring an electrical return path, and adjusting a first phase of the first electromagnetic wave, a second phase of the second electromagnetic wave, or both to adjust a wave mode of the combined electromagnetic wave. Other embodiments are disclosed.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: May 19, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III, Shikik Johnson, Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel
  • Patent number: 10553920
    Abstract: A waveguide-to-parallel-plate twist transition includes at least one waveguide-to-parallel plate twist transition element comprising an input port comprising an input waveguide portion, the input waveguide portion configured to orient an E-field of an electromagnetic wave along a first plane, and an output port comprising a multi-mode parallel plate portion, the multi-mode parallel plate portion configured to orient an E-field of an electromagnetic wave along a second plane, wherein an angle of orientation of the second plane is different from an angle of orientation of the first plane.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: February 4, 2020
    Assignee: THINKOM SOLUTIONS, INC.
    Inventors: William Milroy, Shahrokh Hashemi-Yeganeh
  • Patent number: 10522887
    Abstract: A vehicle having a communication system is disclosed. The system includes two electrical couplings, coupled by way of a rotary joint. Each electrical coupling includes an interface waveguide configured to couple to external signals. Each electrical coupling also includes a waveguide section configured to propagate electromagnetic signals between the interface waveguide and the rotary joint. Additionally, the rotary joint is configured to allow one electrical coupling to rotate with respect to the other electrical coupling. An axis of rotation of the rotary joint is defined by a center of a portion of the waveguides. Yet further, the rotary joint allows electromagnetic energy to propagate between the waveguides of the electrical couplings.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: December 31, 2019
    Assignee: Waymo LLC
    Inventors: Zhe Li, Jamal Izadian, Pierre-yves Droz, Min Wang
  • Patent number: 10403956
    Abstract: An improved system for simplifying a complex waveguide network in a satellite system is described herein. A waveguide network device may be configured with at least two housing portions attached together. This enables the waveguide network device to receive an arbitrary number of waveguide routes and output the routes in any configuration, effectively simplifying the overall waveguide network architecture.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: September 3, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Daniel A. Alvarez, Jeffrey C. Gale, Bryce Hutchinson, Lucas Gordon Michals
  • Patent number: 10297923
    Abstract: Disclosed is a switchable transmit and receive phased array antenna (“STRPAA”). As an example, the STRPAA may include a housing, a multilayer printed wiring board (“MLPWB”) within the housing having a top surface and a bottom surface, a plurality of radiating elements located on the top surface of the MLPWB, and a plurality of transmit and receive (“T/R”) modules attached to the bottom surface of the MLPWB. The STRPAA may also include a plurality of vias, wherein each via, of the plurality of vias, passes through the MLPWB and is configured as a signal path between a T/R module, of the plurality of T/R modules, on the bottom surface of the MLPWB and a radiating element, of the plurality of radiating elements, located on the top surface of the MLPWB opposite the T/R module.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: May 21, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Ming Chen, Jimmy Susumu Takeuchi, Rodney D. Cameron, Isaac R. Bekker, Peter T. Heisen, Dan R. Miller, Randal L. Ternes
  • Patent number: 10256520
    Abstract: Conduit structures for redirecting extremely high frequency (EHF) signals are disclosed herein. The conduit structures discussed herein are designed to re-direct EHF or RF signal energy from a first signal path to a second signal path. The conduit structures according to embodiments discussed herein can re-direct the RF signal energy while simultaneously adhering to specified signaling characteristic of the RF signal and minimizing stray RF signal radiation within a device to support device-to-device contactless communications.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 9, 2019
    Assignee: KEYSSA SYSTEMS, INC.
    Inventors: Alan Besel, Eric Sweetman, Bojana Zivanovic
  • Patent number: 10230172
    Abstract: An antenna array system can include a plurality of sheet metal structures arranged substantially parallel to one another. Each sheet metal structure can include a row of antenna elements and the plurality of sheet metal structures can form an array of antenna elements. The antenna array system can include a plurality of printed circuit boards (PCBs) each of which is mechanically and electrically coupled to a respective sheet metal structure. Each sheet metal structure extends beyond the PCB to which it is mechanically coupled. The antenna array system can include at least one electromagnetic shielding structure configured to electromagnetically shield one or more circuit components from the array of antenna elements. The antenna array system can also include one or more alignment structures configured to provide mechanical rigidity to the array of antenna elements and to allow for spacing between pairs of adjacent sheet metal structures.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: March 12, 2019
    Assignee: ROCKWELL COLLINS, INC.
    Inventors: Jeremiah D. Wolf, Matilda G. Livadaru, Nathan P. Lower, David W. Cripe
  • Patent number: 10205212
    Abstract: Aspects of the subject disclosure may include, generating, by a first hollow waveguide coupled to a first dielectric coupler, a first electromagnetic wave that couples onto a transmission medium, generating, by a second hollow waveguide coupled to a second dielectric coupler, a second electromagnetic wave that couples onto the transmission medium, combining the first electromagnetic wave and the second electromagnetic wave combine to form a combined electromagnetic wave that propagates along the transmission medium without requiring an electrical return path, and adjusting a first phase of the first electromagnetic wave, a second phase of the second electromagnetic wave, or both to adjust a wave mode of the combined electromagnetic wave. Other embodiments are disclosed.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: February 12, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III, Shikik Johnson, Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel
  • Patent number: 10186775
    Abstract: Various embodiments are described that relate to a patch antenna. Portions of a patch antenna, such as a patch antenna element and a probe feed wire can produce an impedance that is undesirable. To compensate for this, a parasitic feed pad can be aligned with the patch antenna element to create a capacitor. This capacitor produces a capacitance that negates the impedance. It can be preferred for the capacitance to be such that there is no excess capacitance and no excess impedance.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: January 22, 2019
    Assignee: The United States of America, as represented by the Secretary of the Army
    Inventors: Timothy Bocskor, Shuguang Chen, Mahmoud Khalil
  • Patent number: 10181645
    Abstract: The present invention is a dual Ka-band, compact, high efficiency CP antenna cluster with dual band compact diplexers-polarizers that can be used as a basic building block for mobile satellite antenna arrays that require minimal dimensions and high efficiency.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: January 15, 2019
    Assignee: AeroAntenna Technology, Inc.
    Inventors: Joseph Klein, Wenhao Zhu
  • Patent number: 10096883
    Abstract: Aspects of the subject disclosure may include, generating, a first hollow waveguide that facilitates coupling, via the first dielectric coupler, a first electromagnetic wave onto a transmission medium, and a second hollow waveguide that facilitates coupling, via the second dielectric coupler, a second electromagnetic wave onto the transmission medium, where the first electromagnetic wave and the second electromagnetic wave combine to form a combined electromagnetic wave that propagates along the transmission medium without requiring an electrical return path, and where the first dielectric coupler has an adjustable length that facilitates an adjustment of a wave mode of the combined electromagnetic wave. Other embodiments are disclosed.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: October 9, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III, Shikik Johnson, Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel
  • Patent number: 10056671
    Abstract: A waveguide type power combining/dividing unit W includes a plurality of rectangular waveguides 1 for TE10 mode disposed in a radial pattern, a circular waveguide 2 for TM01 mode disposed at a center of the radial pattern, in which one ends of the plurality of the rectangular waveguides 1 are connected to a side surface of one end of the circular waveguide.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: August 21, 2018
    Assignee: Nihon Koshuha Co., Ltd.
    Inventors: Kibatsu Shinohara, Shuichi Aizawa, Yutaka Arisumi
  • Patent number: 9960469
    Abstract: A power combiner/divider having a front end and a rear end and including a stepped main center conductor defining an axis and having portions with different outer diameters; an input connector having a center conductor, adapted to be coupled to a signal source, electrically coupled to the main conductor and having an axis aligned with the main conductor axis; a plurality of output connectors having respective axes that are perpendicular to the main conductor axis, the output connectors being radially spaced apart relative to the main conductor, the output connectors having center conductors; a plurality of nested cylinders proximate the front end and arranged with gaps defining at least three gaps providing coaxial transmission lines; and a plurality of nested cylinders proximate the rear end, one of which having apertures perpendicular to the main conductor axis receiving the center conductors of the output connectors, the nested cylinders proximate the rear end defining at least three gaps.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: May 1, 2018
    Inventor: David B. Aster
  • Patent number: 9917343
    Abstract: A coaxial to waveguide transition includes a first rigid portion comprising an inverted hollow cone, a second rigid portion comprising a hollow tube, and a third rigid portion comprising a hollow cone. The first rigid portion has a first end and a second end, and tapers inward at a first angle from its first end towards its second end. The second rigid portion has a first end and a second end, with the first end being partially disposed within the second end of the first rigid portion. The third rigid portion has a first end and a second end, with the first end of the third rigid portion being partially disposed within the second end of the second rigid portion. The third rigid portion tapers outward at a second angle from its first end towards its second end, where the second angle is less than the first angle.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: March 13, 2018
    Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
    Inventors: Jia-Chi S. Chieh, Aaron Clawson, Michael Civerolo
  • Patent number: 9640847
    Abstract: In an example embodiment, a waveguide device comprises: a first common waveguide; a polarizer section, the polarizer section including a conductive septum dividing the first common waveguide into a first divided waveguide portion and a second waveguide divided portion; a second waveguide coupled to the first divided waveguide portion of the polarizer section; a third waveguide coupled to the second divided waveguide portion of the polarizer section; and a dielectric insert. The dielectric insert includes a first dielectric portion partially filling the polarizer section. The conductive septum and the dielectric portion convert a signal between a polarized state in the first common waveguide and a first polarization component in the second waveguide and a second polarization component in the third waveguide.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 2, 2017
    Assignee: ViaSat, Inc.
    Inventors: Anders Jensen, John Daniel Voss, Donald Lawson Runyon
  • Patent number: 9642195
    Abstract: A microwave heating system configured for heating a plurality of articles is provided. One or more of the microwave launchers can be offset slightly, such that the microwave energy introduced into the heating chamber is discharged at a launch tilt angle of at least 2°. Additionally, each launcher can include a microwave-transparent window disposed between the microwave chamber and the one or more launch openings and at least 50 percent of the chamber-side surface of the window can be oriented at an angle of at least 2° from the horizontal.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 2, 2017
    Assignee: Microwave Materials Technologies, Inc.
    Inventor: Harold Dail Kimrey, Jr.
  • Patent number: 9531085
    Abstract: A dual-mode feed network for an antenna array or combination antenna is provided. Two transmission line structures propagate signals according to two different electromagnetic propagation modes, such as TE, TM, TEM and quasi TEM modes. The two transmission line structures are operatively coupled to different components of the antenna array. One transmission line structure may be a stripline or microstrip, and the other transmission line structure may be a waveguide such as a Substrate Integrated Waveguide. Both transmission line structures may branch to reach multiple elements of the antenna array. The transmission lines may share common features, for example by embedding the stripline within the waveguide.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: December 27, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Vahid Miraftab, Wenyao Zhai, Halim Boutayeb
  • Patent number: 9448270
    Abstract: A coupling clamp-type pulse injection apparatus, which can couple a high-voltage wideband pulse having a peak voltage of several tens of kV and having a rising time of several hundreds of ps or less to a cable without causing dielectric breakdown and a 50 ohm impedance mismatch, is provided. The pulse injection apparatus includes an input connector, an output connector, and a main body including an inner plate connected at a first end thereof to the input connector and at a second end thereof to the output connector, and a coupling plate connected to the inner plate and configured to fix a cable to the inner plate and to couple a high-power electromagnetic pulse input through the input connector to the cable.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: September 20, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Up Namkoong, Seung-Kab Ryu, Uijung Kim, Kwang-Uk Chu
  • Patent number: 9425507
    Abstract: Disclosed is a phased-array antenna. The phased-array antenna includes a plurality of element antennas having feed lines formed thereon, antenna modules configured to extend and be disposed in longitudinal directions of the element antennas and independently connected to one ends of the plurality of element antennas, respectively, and a signal distribution module disposed in a direction perpendicular to the antenna modules, having one side surfaces being perpendicularly connected to each of the antenna modules, and configured to distribute an input signal to the corresponding antenna modules through connection pins whose one sides are respectively connected to the antenna modules.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: August 23, 2016
    Assignee: XMW INC.
    Inventor: Moohong Lee
  • Patent number: 9362605
    Abstract: An electromagnetic wave propagation device includes multiple planar propagation media each formed by laminating at least one planar conductor and at least one planar dielectric, multiple transceivers for transmitting and receiving information among electronic apparatuses, and a first interface for transmitting and receiving the electromagnetic wave between the transceivers and the planar propagation media. Planar dielectric spacers are provided for isolating the multiple planar propagation media from one another. The planar propagation medium is disposed to have an overlapped part with at least the other of the planar propagation media so that an obverse face of the medium and a reverse face of the other medium are at least partially overlapped with each other. The planar conductor is provided with an electromagnetic wave linking unit at the overlapped part that transmits and receives the electromagnetic wave between the planar propagation media.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: June 7, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Shinoda, Takahide Terada, Kazunori Hara
  • Patent number: 9331371
    Abstract: There is provided a waveguide connecting structure, including first, second, third and fourth waveguides. A first coupling window at one of magnetic field planes of the third waveguide couples the first and third waveguides in such a manner that the electric field planes of both are in parallel. A second coupling window formed at one of the electric field planes of the third waveguide couples the second and third waveguides in such a manner that the electric field planes of the second waveguide is in parallel with the magnetic field planes of the first waveguide. A third coupling window formed at the other one of the electric field planes couples the fourth and third waveguides in such a manner that the electric field planes of the fourth waveguide is in parallel with the magnetic field planes of the first waveguide.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: May 3, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsu Shijo, Koh Hashimoto, Shuichi Obayashi
  • Patent number: 9310481
    Abstract: Systems and methods for measuring wind speed and direction in clear air conditions using a wide band Doppler radar in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a wide band Doppler radar system includes an antenna assembly includes at least one transmit antenna and at least one receive antenna; a transceiver connected to the antenna assembly configured to transmit a radar beam includes a transmit signal on a Ka-band carrier frequency and receive a backscattered radar beam includes a carrier frequency that is frequency shifted relative to the transmitted Ka-band carrier frequency of the backscattered radar beam; a data acquisition system connected to the transceiver configured to estimate a wind velocity vector by calculating a Doppler shift between at least one transmitted radar beam and at least one received backscattered radar beam.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 12, 2016
    Assignee: LogLinear Group, LLC
    Inventors: Mark Henderson, Marshall Bradley
  • Patent number: 9196944
    Abstract: A broadband building block portion is provided, which may be used to construct N-way multi-port combiners. The building block portion comprises a first feeding probe that receives a first input signal, a second feeding probe that receives a second input signal, a combining probe that combines the first and second input signals to output a combined signal, and a transmission line coupled to the first and second feeding probes.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: November 24, 2015
    Assignee: Teledyne Wireless, LLC
    Inventors: Ankush Mohan, Yehuda Goren, William Goumas
  • Patent number: 9197337
    Abstract: A wireless signal transmission device is provided. The wireless signal transmission device includes a reflective surface and a receiver. The reflective surface reflects a wireless signal. The receiver receives the wireless signal reflected. The receiver includes a receiver body, a wave guide, a transmission unit and a medium sheet. The wave guide includes an opening end and a connection end connected thereto. The transmission unit is disposed in the wave guide adjacent to the connection end for receiving the wireless signal. The medium sheet is disposed in the wave guide, wherein the medium sheet comprises a first section and a second section, the first section is adjacent to the transmission unit, the second section is adjacent to the opening end, the first section has a first dielectric constant, the second section has a second dielectric constant, and the first dielectric constant is smaller than the second dielectric constant.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: November 24, 2015
    Assignee: Wistron NeWeb Corp.
    Inventors: Ta-Jen Wu, Wen-Tsai Tsai, Wen-Chen Lan
  • Patent number: 9178285
    Abstract: A phase shift device includes an input quadrature junction for receiving an input EM signal and extracting a first electromagnetic (EM) signal, a second EM signal, a third EM signal, and a fourth EM signal from the input EM signal. Four waveguide arms are operatively connected to the input quadrature junction for respectively conveying the first, second, third, and fourth EM signals therethrough. At least two of the waveguide arms shift the phase of EM signal conveyed therethrough such that two of the first, second, third, and fourth EM signals are phase shifted with respect to the other two of the first, second, third, and fourth EM signals. An output quadrature junction is operatively connected to the waveguide arms for combining the first, second, third, and fourth EM signals. Thus, polarization adjustment may be achieved through rotation of the phase shift device.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 3, 2015
    Assignee: General Dynamics C4 Systems, Inc.
    Inventors: Robert Alois Hoferer, Mark Beadle, Jeff Kerpan, Jason Wrigley
  • Patent number: 9093732
    Abstract: An exemplary embodiment of the present invention provides an improved dielectric waveguide named electrical fiber. The electrical fiber with a metal cladding may isolate the interference of the signals in other wireless channels and adjacent electrical fibers, which typically causes band-limitation problem, for a smaller radiation loss and better signal guiding to lower the total transceiver power consumption as the transmit distance increases. Also, the electrical fiber may have frequency independent attenuation characteristics to enable high data rate transfer with little or even without any additional receiver-side compensation due to vertical coupling of the electrical fiber and an interconnection device.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 28, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hyeon Min Bae, Ha Il Song, Huxian Jin
  • Patent number: 9041489
    Abstract: A signal transmission cable includes a multi-layer parallel transmission path, a single-layer parallel transmission path, and a single-layer/multi-layer conversion section. The multi-layer parallel transmission path includes two or more dielectric waveguides stacked in upper and lower directions. Each dielectric waveguide includes a dielectric layer formed of a dielectric substance, two conductive layers formed to sandwich the dielectric layer, and two quasi-conductive walls. The two quasi-conductive walls include a plurality of via-holes electrically connected to the two conductive layers. The dielectric waveguides are arranged sharing the conductive layers in contact in the upper and lower directions. The single-layer parallel transmission path includes the two or more dielectric waveguides arranged in left- and right-hand directions on the same dielectric layer and conductive layer.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: May 26, 2015
    Assignee: SONY CORPORATION
    Inventors: Shinya Morita, Akira Akiba
  • Patent number: 9030268
    Abstract: A power combiner/divider having a waveguide, a plurality of amplifiers disposed on a supporting structure, a plurality of probes, each one having a first end electrically coupled to an output of a corresponding one of the plurality of amplifiers and a second end projecting outwardly from the supporting structure and into the waveguide. The probes are disposed in a common region of the waveguide. The region has a common electric field maximum within the waveguide. A first portion of the probes proximate the sidewalls have lengths different from a second portion of the probes disposed in a region distal from the sidewalls of the waveguide. The waveguide is supported by the support structure. The power combiner is a monolithic microwave integrated circuit structure.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: May 12, 2015
    Assignee: Raytheon Company
    Inventors: Nicholas J. Kolias, Kenneth W. Brown
  • Publication number: 20150123863
    Abstract: A compact dual-polarization planar power splitter comprises at least four asymmetric orthomode transducers (OMTs) connected in an array suitable for being coupled in-phase to a dual orthogonal polarization feed source via two power distributors mounted perpendicularly in relation to one another, each power distributor comprising at least two lateral metal waveguides disposed parallel to one another, and a transverse metal waveguide coupled perpendicularly to the two lateral metal waveguides and four ends of the lateral waveguides coupled respectively to the four asymmetric OMTs.
    Type: Application
    Filed: November 1, 2014
    Publication date: May 7, 2015
    Inventors: Herve LEGAY, Adrien COTTIN, Ronan SAULEAU, Patrick POTTIER
  • Publication number: 20150123867
    Abstract: A power splitter comprises at least two mutually parallel lateral waveguides with rectangular cross-section and a transverse waveguide with rectangular cross-section comprising two opposite ends respectively connected to the two lateral waveguides. The two lateral waveguides are oriented along a direction Y and mounted flat with their large side parallel to a plane XY, the transverse waveguide is oriented along a direction X perpendicular to the direction Y and mounted edgewise with its small side parallel to the plane XY, and each lateral waveguide is coupled to the transverse waveguide by a tee coupler in the E-plane with embedded junction, the two ends of the transverse waveguide being respectively embedded in each lateral waveguide, at the centre of the said respective lateral waveguide.
    Type: Application
    Filed: November 1, 2014
    Publication date: May 7, 2015
    Inventors: Herve LEGAY, Adrien COTTIN, Ronan SAULEAU, Patrick POTTIER, Pierre BOSSHARD
  • Patent number: 9019036
    Abstract: A power combiner/divider having a waveguide, a plurality of amplifiers disposed on a supporting structure, a plurality of probes, each one having a first end electrically coupled to an output of a corresponding one of the plurality of amplifiers and a second end projecting outwardly from the supporting structure and into the waveguide. The probes are disposed in a common region of the waveguide. The region has a common electric field maximum within the waveguide. A first portion of the probes proximate the sidewalls have lengths different from a second portion of the probes disposed in a region distal from the sidewalls of the waveguide. The waveguide is supported by the support structure. The power combiner is a monolithic microwave integrated circuit structure.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: April 28, 2015
    Assignee: Raytheon Company
    Inventors: Nicholas J. Kolias, Gabriel M. Rebeiz
  • Publication number: 20150109070
    Abstract: A dielectric waveguide (DWG) has a longitudinal core member with a first dielectric constant value surrounded by a cladding with a cladding dielectric constant value that is lower than the first dielectric constant value. A first port of a signal divider is connected to receive a signal from the DWG. A second port and a third port are each configured to output a portion of the signal received on the first port, wherein the first and second port are approximately in line and the third port is at an angle to a line formed by the first port and the second port. The first port and second port have a core member with the first dielectric constant value, and the third port has a core member with a second dielectric constant value that is higher than the first dielectric constant value.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 23, 2015
    Inventor: Juan Alejandro Herbsommer
  • Patent number: 8994474
    Abstract: An ortho-mode transducer may include a cylindrical common waveguide terminating in a common port, a rectangular vertical branch waveguide in-line with the cylindrical common waveguide and terminating in a vertical port, and a rectangular horizontal branch waveguide normal to the common waveguide and terminating in a horizontal port. The vertical branch waveguide may be configured to couple a first linearly polarized mode from the vertical port to the common waveguide. The horizontal branch waveguide may be configured to couple a second linearly polarized mode, orthogonal to the first linearly polarized mode, from the horizontal port to the common waveguide. A portion of the vertical branch waveguide may overlap a portion of the cylindrical common waveguide. A septum may span the vertical branch waveguide proximate to the overlapping portions of the vertical branch waveguide and the common waveguide. A rectangular symmetry cavity may be opposed to the horizontal branch waveguide.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: March 31, 2015
    Assignee: Optim Microwave, Inc.
    Inventors: John P. Mahon, Cynthia P. Espino
  • 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: 20150035618
    Abstract: Apparatus is provided which allows for the receipt and/or transmission of data signals, and, for the received signals, for the subsequent separation of the same into at least two sets of data signals which are orthogonal and provide these sets of data signals to subsequent processing components, whilst maintaining the isolation between the first and second data signal sets. For the transmission of the data signals the first and second sets of data signals are initially separate and then combined into one data set to allow the same to be transmitted.
    Type: Application
    Filed: February 18, 2013
    Publication date: February 5, 2015
    Inventor: Matthew James Pike
  • Publication number: 20140375396
    Abstract: A T-shaped waveguide tube with adjustability as between two outputs includes a T-shaped body, a T-shaped cover detachably mounted on the body, and a baffle. A number of pair of pillars can be mounted on a bottom board of the body. An energy entrance, a first energy output, and a second energy output are formed by the body, the cover, and the baffle. By installing the pillars in different configurations, wave energy from the energy entrance can be distributed equally or otherwise through the two outputs of the waveguide tube.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 25, 2014
    Inventor: CHIH-HAO LIN
  • Publication number: 20140354375
    Abstract: Orthomode transducers (OMTs) and methods of fabricating OMTs are disclosed. According to disclosed embodiments, an OMT includes a housing defining an internal waveguide. The housing may be composed of a first cast housing member attached to a second cast housing member. The first housing member may include a first side of the waveguide that is cast into the first housing member. The second housing member may include a second side of the waveguide that is cast into the second housing member. A method of fabricating an OMT may include arranging at least one casting insert in at least one mold, casting the housing in the mold and casting a waveguide in the housing using the at least one casting insert. The disclosed devices and methods provide cost effective solutions for fabricating OMTs of various operating frequencies that share a substantially similar outer housing shape and size.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Applicant: Radio Frequency Systems, Inc.
    Inventors: Yin-Shing Chong, Peter Casey, Yunchi Zhang
  • Publication number: 20140354369
    Abstract: The present technology relates to a transmission line and transmission method that allow multi-mode transmission to be easily performed using electrical signals as a transmission target. A multi-mode waveguide is connected to a metal wire configured to transmit an electrical signal via a matching structure configured to perform impedance matching between the multi-mode waveguide and the metal wire. For example, the electrical signal can be a signal of a millimeter wave band. For example, the multi-mode waveguide, the metal wire, and the matching structure can be arranged to be aligned on a plane. The present technology can be applied to, for example, transmission for electrical signals such as millimeter waves.
    Type: Application
    Filed: January 9, 2013
    Publication date: December 4, 2014
    Inventor: Sho Ohashi
  • Publication number: 20140312988
    Abstract: A Ka-band high power amplifier structure having minimum processing and assembling errors, which uses a technique in which input and output waveguide flanges of individual amplifiers which are connected in parallel are connected to a waveguide divider and a waveguide combiner from above, and uses a waveguide transition patch implemented on an interconnect substrate for coupling to the individual amplifier to avoid the use of an input and output connector pin and an interconnector.
    Type: Application
    Filed: October 4, 2012
    Publication date: October 23, 2014
    Inventor: Moohong Lee
  • Publication number: 20140312987
    Abstract: A signal transmission cable includes a multi-layer parallel transmission path, a single-layer parallel transmission path, and a single-layer/multi-layer conversion section. The multi-layer parallel transmission path includes two or more dielectric waveguides stacked in upper and lower directions. Each dielectric waveguide includes a dielectric layer formed of a dielectric substance, two conductive layers formed to sandwich the dielectric layer, and two quasi-conductive walls. The two quasi-conductive walls include a plurality of via-holes electrically connected to the two conductive layers. The dielectric waveguides are arranged sharing the conductive layers in contact in the upper and lower directions. The single-layer parallel transmission path includes the two or more dielectric waveguides arranged in left- and right-hand directions on the same dielectric layer and conductive layer.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 23, 2014
    Applicant: SONY CORPORATION
    Inventors: Shinya Morita, Akira Akiba
  • 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
  • Patent number: 8816930
    Abstract: A waveguide orthomode transducer, comprises: a junction having a main waveguide and four auxiliary waveguides lying along the two orthogonal main axis of the junction and defining four quadrants; a combination network comprising: two magic tees, each having an E-port, two opposed common-ports, and a H-port; an H-plane tee junction having a ?-port and two opposed common-ports; and an E-plane tee junction having a ?-port and two opposed common-ports. Two auxiliary waveguides define a first quadrant are respectively connected to the common-ports of one of the magic tees and the two other secondary waveguides defining a second quadrant opposite to the first quadrant are connected to the common-ports of the other magic tee. The tee junctions are used to connect similar magic tee ports so that the transducer separates towards two different outputs two orthogonally polarized signals entering at the main waveguide.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: August 26, 2014
    Assignee: Centre National d'Etudes Spatiales
    Inventor: Nelson Fonseca
  • Publication number: 20140184355
    Abstract: A laminated waveguide diplexer includes an upper conductive layer having a first slot and a second slot; a first line crossing over the first slot; a first shielding conductor disposed over the first line; a plurality of first conductive pillars connecting the upper conductive layer and the first shielding conductor; a second line crossing over the second slot; a second shielding conductor disposed over the second line; and a plurality of second conductive pillars connecting the upper conductive layer and the second shielding conductor.
    Type: Application
    Filed: November 15, 2013
    Publication date: July 3, 2014
    Applicant: MICROELECTRONICS TECHNOLOGY, INC.
    Inventors: Ting Yi HUANG, Chia Yu CHOU
  • Patent number: 8766743
    Abstract: A plurality of power amplifiers are integrated into a semiconductor substrate and coupled to a corresponding first plurality of antennas on an adjacent first microwave substrate. A second microwave substrate carries a second plurality of antennas coupled to a combining network. The second microwave substrate is separated from the first microwave substrate to allow a free space combination of RF energy propagated by the first plurality of antennas.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: July 1, 2014
    Assignee: Tialinx, Inc.
    Inventors: Farrokh Mohamadi, Mohsen Zolghadri, Mehran Mokhtari