Having Crossed-guide Waveguide Patents (Class 333/114)
  • Patent number: 10403982
    Abstract: Disclosed is a dual-mode antenna array system (“DAAS”) for directing and steering an antenna beam that includes an approximately square feed (“ASF”) waveguide, a plurality of first-mode directional couplers (“FMDCs”), a plurality of second-mode directional couplers (“SMDCs”), a plurality of first-mode radiating elements (“FMREs”), and a plurality of second-mode radiating elements (“SMREs”). The ASF waveguide includes a first ASF waveguide wall, a second ASF waveguide wall, an ASF waveguide length, a first-feed waveguide input at a first-end of the ASF feed waveguide, and a second-feed waveguide input at a second-end of the ASF feed waveguide. The plurality of FMDCs are on the first ASF waveguide wall and the plurality of SMDCs are on the second ASF waveguide wall. The plurality of FMREs are in signal communication with the plurality of FMDCs and the plurality of SMREs are in signal communication with the plurality of SMDCs.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: September 3, 2019
    Assignee: The Boeing Company
    Inventor: Paul J. Tatomir
  • Patent number: 10347961
    Abstract: The concepts, systems and methods described herein are directed towards a connectorless radio frequency (RF) interface between an antenna and RF processor. An RF interconnect is provided having a housing having a ridged waveguide portion provided therein, an upper cavity formed in an upper portion of the housing, a lower cavity formed in a lower portion of the housing, a first suspended air stripline (SAS) transmission line disposed in the lower cavity such that at least a portion of the first SAS transmission line crossed a slot formed by the ridged waveguide and a second SAS transmission line disposed in the upper cavity such that at least a portion of the second SAS transmission line crosses the slot formed by the ridged waveguide.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: July 9, 2019
    Assignee: Raytheon Company
    Inventors: Matthew J. Wargo, Joseph M. Anderson, Kelly Ryian Stewart, Matthew Salem
  • Patent number: 9923255
    Abstract: A cross-guide coupler for use in a waveguide network is provided. The cross-guide coupler comprises a main waveguide arm having an input port and a transmitted port and a hollow metallic conduit therebetween. The cross-guide coupler also comprises a secondary arm positioned substantially transversely relative to the main arm and being fastened to the main arm, wherein the secondary arm includes a substrate integrated waveguide.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 20, 2018
    Assignee: Apollo Microwaves LTD.
    Inventors: Louis-Philippe Carignan, Dominic Gagne
  • Patent number: 8965159
    Abstract: A method and structures are provided for implementing an impedance-matched, low inductance, 3-dimensional (3D) twisted-pair within a given dielectric material layer. A dielectric material layer is loaded with an electrically insulating metal spinel compound at a set loading level. Upon exposure to a focused laser beam, the spinel is converted to a metallic particle with an electrical conductivity suitable for various applications. An impedance-matched, low inductance, 3-dimensional (3D) twisted-pair is generated using a laser direct structuring process with a fine depth control achieved with a laser.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: February 24, 2015
    Assignee: International Business Machines Corporation
    Inventors: Matthew S. Doyle, Joseph Kuczynski, Kevin A. Splittstoesser, Timothy J. Tofil
  • Patent number: 8638182
    Abstract: A power multiplier and method are provided. The power multiplier includes a power multiplying network that is a multiply-connected, velocity inhibiting circuit constructed from a number of lumped-elements. The power multiplier also includes a launching network, and a directional coupler that couples the launching network to the power multiplying network. The power multiplier provides for power multiplication at nominal power generation frequencies such as 50 Hertz, 60 Hertz, and other power frequencies, in a compact circuit.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: January 28, 2014
    Assignee: CPG Technologies, LLC.
    Inventor: James F. Corum
  • Patent number: 8629734
    Abstract: A system for power smoothing in power distribution and methods are provided. In one embodiment, a power multiplying network is provided that comprises a multiply-connected, velocity inhibiting circuit constructed from a number of lumped-elements. The power multiplying network is coupled to a power distribution network. The power multiplying network is configured to store power from and supply power to the power distribution network.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: January 14, 2014
    Assignee: CPG Technologies, LLC
    Inventor: James F. Corum
  • Patent number: 8319571
    Abstract: Disclosed are waveguide distortion mitigation devices that produce reduced group delay ripple in communication systems in which they are used. The devices comprise a first and second tapered waveguide sections, a first coupling device coupled to the first tapered waveguide section, and a second coupling device coupled to the second tapered waveguide section and the first waveguide coupling device. A waveguide isolator may optionally be coupled between the first and second waveguide coupling devices. The first and second coupling devices may comprise waveguide circulators or waveguide-hybrid couplers. The tapered waveguide sections may embody a single transition comprising a single waveguide wall, a single transition comprising two waveguide walls, or a plurality of transitions comprising a plurality of waveguide walls.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: November 27, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Richard D. Breen, Samuel J. Waldbaum
  • Publication number: 20110006854
    Abstract: Provided is a short-slot type waveguide coupler which can be applied to a transmission line that transmits broadband signals. The waveguide coupler according to the present invention is a short-slot type waveguide couplers wherein it includes a plurality of waveguide units which have a separate port for inputting or outputting signals respectively and a joint unit which combines a plurality of waveguide units and have a specific length in a predetermined direction. Here, at least one waveguide unit extends to a direction that forms a predetermined angle from a longitudinal direction of the joint unit.
    Type: Application
    Filed: March 10, 2009
    Publication date: January 13, 2011
    Inventor: Takayuki Oyama
  • Patent number: 7289077
    Abstract: The invention relates to a frequency-dispersive antenna. The antenna comprises radiating waveguides on which are formed slots. The antenna comprises at least one feed waveguide linked by coupling slots to the radiating waveguides. The variation of the pointing direction of the beam from the antenna in at least one plane is obtained by varying the frequency of the wave guided by the feed waveguide. The length of the feed waveguide between the coupling slots of two adjacent radiating waveguides is greater than the distance separating the coupling slots of these two adjacent radiating waveguides. In particular, the invention applies to an airborne antenna suited to the detection and locating of meteorological phenomena.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: October 30, 2007
    Assignee: Thales
    Inventors: Jean-Paul Artis, Gérard Debionne, Georges Guillaumot, Maxence Marcant
  • Patent number: 7286093
    Abstract: The invention relates to a frequency dispersive antenna comprising radiating waveguides divided into three legs. The indirect angle between the first and second leg is greater than or equal to 90 degrees and less than 180 degrees, the direct angle between the second and third leg being greater than or equal to 90 degrees and less than 180 degrees. The antenna comprises a feed waveguide comprising a stack of elements divided into three adjacent legs, the direct angle between the first and second leg being greater than or equal to 90 degrees and less than 180 degrees, the indirect angle between the second and third leg being greater than or equal to 90 degrees and less than 180 degrees. In particular, the invention applies to an airborne antenna suitable for the detection and for the pinpointing of meteorological phenomena.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: October 23, 2007
    Assignee: Thales
    Inventors: Jean-Paul Artis, Gérard Debionne, Georges Guillaumot, Maxence Marcant
  • Patent number: 6668106
    Abstract: The present invention combines several features to create a novel type of optical telecommunications switching component using microwave waveguides as opposed to the usual methods employing light deflection or digital signal processing. Some of the components of the device include: (1) an optical crossconnect (OXC) which allows any combination of wavelengths to be added or dropped from an element to an optical network, (2) an optical add/drop multiplexer (OADM) which allows any wavelength to be converted to any other, (3) a microwave crossbar switch array optimized for this purpose, and (4) a means for reshaping the exiting signal from the microwave crosspoint switch array without regard to signal format and without need for complex and expensive digital signal processing. The minimal architecture for this functionality is shown to be three N×N microwave crossbar switch arrays.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: December 23, 2003
    Assignee: Teraburst Networks, Inc.
    Inventors: Jules D. Levine, Thomas W. Myers, Christopher Weller
  • Patent number: 6476772
    Abstract: A waveguide slot array antenna system, for use with a communications system 30 disposed on a satellite. The waveguide slot array antenna system comprises a feed waveguide having an input port and multiple output ports, a waveguide slot array having a plurality of slots formed therein that is coupled to the feed waveguide, and a waveguide lens disposed adjacent to the waveguide slot array. The phase of each contributing radiating waveguide is controlled to achieve radiation pattern shaping. Inner dimensions of the rectangular waveguides are designed to provide a phase velocity inside each waveguide that results in the appropriate radiated phase at the output of the waveguides. The phase radiated by each rectangular waveguide is determined by design, and the radiation pattern that results from the combined contributions of the array can be shaped to produce a complex radiation contour.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: November 5, 2002
    Assignee: Space Systems/Loral, Inc.
    Inventors: Terry M. Smith, George Hardie, Juan Duarte
  • Patent number: 5893026
    Abstract: A low pass filter capable of passing a radio paging signal of good quality through suppressing harmonic in a radio paging transmitter. The low pass filter of the radio paging transmitter, comprising: a first filter of a .pi. type for suppressing harmonic of a radio paging signal outputted, which is connected to an output terminal of the radio paging transmitter; and, a second filter for suppressing second and third harmonic or more of the radio paging signal, which is connected between the first filter and an antenna and comprised with multistage plane panel capacitors and parallel inductance and capacitors connected between the plane panel capacitors.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: April 6, 1999
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Wook Kim
  • Patent number: 5650793
    Abstract: A centered longitudinal series/series coupling slot disposed between a boxed stripline and a crossed rectangular waveguide comprising a plurality of longitudinal radiating slots. The centered longitudinal series/series coupling slot is disposed orthogonal to the longitudinal radiating slots of the crossed rectangular waveguide. The centered longitudinal series/series coupling slot is longitudinally disposed along the centerline of the boxed stripline in such a way the centered longitudinal slot interacts with the stripline mode and not with the rectangular waveguide mode (TE.sub.10 mode) in the boxed stripline. As a result of this, a highly efficient standing wave (or travelling wave) feed is provided using the centered longitudinal series/series coupling slot in the boxed stripline.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 22, 1997
    Assignee: Hughes Missile Systems Company
    Inventor: Pyong K. Park
  • Patent number: 5543810
    Abstract: A dual polarization array that comprises horizontal polarization and vertical polarization arrays, combined with an efficient waveguide-fed standing wave feed array. The vertical polarization array comprises an offset, resonant, iris-fed, centered longitudinal-shunt-slot, standing wave array. The horizontal polarization array comprises a flared dipole fed by a longitudinal, shunt-slot, standing wave array. The waveguide-fed standing wave feed array is comprised of a plurality of waveguides that separately feed the horizontal polarization and vertical polarization arrays. The horizontal polarization array comprises a first plurality of radiating waveguides laterally disposed adjacent to each other that are separated by a first plurality of gaps. Each waveguide comprises a plurality of radiating flared dipoles disposed adjacent to a respective plurality of longitudinal radiating shunt slots.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 6, 1996
    Assignee: Hughes Missile Systems Company
    Inventor: Pyong K. Park
  • Patent number: 5407905
    Abstract: To reduce losses of commercial room temperature couplers, high Tc superconducting waveguides and waveguide flanges are used for couplers. There are two approaches for making these high Tc superconducting waveguide structures. One is to use a single crystal such as YBaCuO (YBCO), cut and machine the crystal to the desired shape, and use high Tc superconducting flanges. In the second method, a good quality dielectric, such as sapphire is used and cut and machined to the desired shape. The conducting surfaces are coated with a single crystal high Tc superconducting material such as YBCO. The waveguides are brazed together. Low loss is important particularly for high power couplers. Significant amount of RF power is lost even with a low loss coupler. The high Tc superconducting couplers will provide a significant benefit in high power RF systems handling power levels such as 0.5 megawatts.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: April 18, 1995
    Inventor: Satyendranath Das
  • Patent number: 5389901
    Abstract: A modified branch line coupler amplitude equalizer circuit employing cross arms and branch lines of varying lengths and impedances to minimize the return loss of the circuit.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: February 14, 1995
    Assignee: ITT Corporation
    Inventors: William G. Sterns, Ching F. Cho
  • Patent number: 5235297
    Abstract: A radio frequency multiplexer provides a desired channelization plan by directionally coupling high quality linearly polarized filters to a waveguide manifold. The multiplexer includes a waveguide manifold for transmitting signals in a plurality of different frequency channels, a polarization translating coupling aperture arrangement, a circular polarizer, and filter for each channel. Wide band signals traveling along the waveguide manifold exit the waveguide through the coupling aperture arrangement. The linearly polarized signal from the waveguide manifold translates to a circularly polarized signal through the coupling aperture arrangement and these circularly polarized signals are translated back to linearly polarized signals by the circular polarizer. The linearly polarized wide band signals from the circular polarizer are then filtered with the filter device which allows only signals in a channel to be separated to pass.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: August 10, 1993
    Inventor: Saleem Tawil
  • Patent number: 5140335
    Abstract: RF manifolding for a radar antenna which allows tight spacing of Phase Control Modules (PCMs) is disclosed. The manifolding consists of ridged branch manifold waveguides to which ridged cross waveguide sections are installed. Each branch manifold waveguide of the present invention has ridges on one broad wall, coupling slots on another broad wall, and a plurality of cross waveguides connected on the side having the coupling slots. The cross waveguides are likewise provided with ridges on one broad wall, which are oriented at right angles to the ridges of the branch manifold waveguide, and have coupling slots on the opposite broad wall which correspond to the coupling slots of the branch manifold waveguide. The PCMs are mounted on the end of each cross waveguide, parallel to the ridges thereof.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: August 18, 1992
    Assignee: Westinghouse Electric Corp.
    Inventors: John H. Staehlin, Lanson Y. Shum, David W. Parry, Frank B. Gabranski, Douglas K. Comstock, Albert F. Zirkle, Richard S. Konapelsky, Michael A. Mongilio
  • Patent number: 5079561
    Abstract: An array antenna which includes a first waveguide 12 coupled to a second waveguide 20 by an L-shaped coupling slot 30. The slot 30 has a first portion 32 orthogonal to a second portion 34 thereof thereby providing the unique L-shape. In a specific embodiment, the slot 30 is located with the first portion 32 along the centerline and longitudinal axis of the first waveguide 12 and the second portion 34 along the centerline and longitudinal axis of the second waveguide 20. The folded short, as well as the tapered section of prior designs can be eliminated by use of the L-shaped coupling slot of the present invention in the first and last positions of the coupling slot because a short can be placed at the L-shaped slot. Hence, the L-shaped coupling slot of the present invention provides a more compact planar antenna than that afforded by conventional designs.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: January 7, 1992
    Assignee: Hughes Aircraft Company
    Inventor: Pyong K. Park
  • Patent number: 4952894
    Abstract: An improved corporate feed network for distributing radio frequency energy to elements of an antenna array is shown. The corporate feed network comprises an improved feed coupler, including a quadrature hybrid junction for dividing radio frequency (R.F.) energy from an input port into the two waveguides and a plurality of secondary waveguides disposed orthogonally to the first and second waveguides, each of the secondary waveguides having narrow walls common to broad walls of the first and second waveguides with apertures formed through common sections of such walls, the common sections being offset to impart directional characteristics to the corporate feed network.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: August 28, 1990
    Assignee: Raytheon Company
    Inventors: William R. Connerney, Jaffar W. Hamandi
  • Patent number: 4818958
    Abstract: A compact, dual series waveguide feed network is disclosed which has application to monopulse radar antennas and is usable in applications requiring compact and light weight feed networks. The network in accordance with the invention uses phase shifters at the phase reversal points of the secondary (42) feed lines to establish a 180.degree. relative phase difference with the corresponding phase reversal point of the primary feed line. No phase shifters are used in the crossguide feed lines (44). Because of the invention's phase shifter arrangement, crossguide lines (44) may be located directly opposite each other instead of being staggered as in prior techniques; hence the size of the network is reduced and resolution is increased. Also, the primary and secondary feed lines may be located closer together because there are no phase shifters with associated matching and transition devices located in the crossguide feed lines.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: April 4, 1989
    Assignee: Hughes Aircraft Company
    Inventors: Kuan M. Lee, William L. Lange, Stan W. Livingston
  • Patent number: 4641082
    Abstract: A six-port reflectometer has first and second directional couplers, a first waveguide and a third directional coupler providing a series connection from a source to a test device. The first coupler is connected to two detectors. The second coupler is connected to a third detector and to a fourth waveguide having two ports connected via a waveguide and a further port connected to an absorber. The third coupler is connected to a detector and a reflector. The second waveguide and the reflector receive radiation coupled by the second and third couplers respectively. The third and fourth couplers provide equivalent transmission paths. Equal path lengths are traversed by signals leaving the second coupler and returning to it from the reflector and the fourth coupler respectively. With broad-band couplers and waveguides, this arrangement gives broad-band performance.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: February 3, 1987
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Eric J. Griffin, Richard J. Collier, George Hjipieris
  • Patent number: 4489271
    Abstract: A compact apparatus for the accurate measurement of complex reflection coefficients and VSWR of a device over either a waveguide bandwidth or multi-octave bandwidth by preferably measuring two power levels at detectors associated with the device. The device is formed by a main coupling means which in one embodiment is a main guide arm having means for receiving a test signal and means for transmitting the signal to the device being measured. In addition to the main coupling means (arms) there are also provided detector arms each having a detector associated therewith and means coupling signals from the main arm to the detector arms with the overall design being controlled in accordance with relatively simple formulae. The techniques of the invention are embodied herein in a waveguide embodiment, a stripline embodiment and a quasi-optical embodiment of the invention.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: December 18, 1984
    Inventor: Gordon P. Riblet
  • Patent number: 4303898
    Abstract: Rectangular waveguides adapted for combination as cross-guide couplers are disclosed. Each waveguide includes opposing sidewalls, a coupling wall and flanges extending from the sidewalls. Each flange has a contact surface in parallel with the coupling wall and is positioned relative to the coupling wall so that the contact surface thereof contacts the coupling wall of the waveguide with which it is combined to form the cross-guide coupler. The coupling wall of one of the waveguides in each coupler includes a coupling aperture. The coupling wall of the other waveguide includes an opening sufficiently larger than the coupling aperture to leave a substantial margin therebetween.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: December 1, 1981
    Assignee: General Electric Company
    Inventors: Richard R. Kinsey, George W. Halbritter, David L. Binsley, Allan E. Rasmussen, Howard Q. Totten
  • Patent number: H392
    Abstract: A controllably electrically coupled, physically intersecting plural waveguide manifold assembly wherein the intersecting waveguide elements are fabricated in integral unitary relationship from a single piece of metal in order to avoid the inaccuracies and difficult-to-control fabrication steps associated with uniting separate waveguide elements into a unitary structure. An X-band aluminum airborne radar manifold example is disclosed, along with a fabrication sequence for the manifold and the electrical energy communicating apertures joining the manifold elements.
    Type: Grant
    Filed: April 9, 1987
    Date of Patent: December 1, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: John H. Staehlin