With Closure Patents (Class 343/784)
  • Patent number: 10205245
    Abstract: A housing apparatus is described which comprises a hollow conductor which is adapted for guiding an electromagnetic wave having a predeterminable wavelength and which comprises an edge surface which extends substantially perpendicularly to the propagation direction of an electromagnetic wave guided by the hollow conductor, wherein the housing apparatus comprises both a wall element and a protection apparatus having a bearing surface. The wall element holds the protection apparatus on an end of the hollow conductor by means of a pressing force.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: February 12, 2019
    Assignee: VEGA GRIESHABER KG
    Inventors: Johannes Falk, Klaus Kienzle
  • Publication number: 20150009083
    Abstract: A feed horn includes at least a wave guiding unit which has a pipe and two dielectric layers. The pipe has an opening and at least an inner surface extending from the opening to an inside of the pipe. The dielectric layers have a larger dielectric constant than air and are fastened to the inner surface of the pipe in a way that the dielectric layers face each other. As a result, the dielectric layers can improve isolation and directivity of cross polarization waves and co-polarization waves received by the feed horn.
    Type: Application
    Filed: April 3, 2014
    Publication date: January 8, 2015
    Applicant: PRIME ELECTRONICS AND SATELLITICS INCORPORATION
    Inventors: Li-Chun SHIUE, Peng-Chen PAN
  • Publication number: 20140375517
    Abstract: A radome for a feed horn includes a cover and at least a protrusion having an elliptic protruding portion shaped as a part of a hollow ellipsoid and provided with a convex surface and a concave surface opposite to the convex surface. The radome is defined with a plurality of first and second cross-sections. Curves of the convex and the concave surfaces in the first cross-sections are different from those in the second cross-sections. The convex and concave surfaces are substantially perpendicular to an advancing direction of a co-polarization wave and unperpendicular to an advancing direction of a cross polarization wave. As a result, the radome can be so thick as to be easily manufactured and not easily damaged and enhance the performance of the feed horn covered by the radome in sending and receiving signals.
    Type: Application
    Filed: April 3, 2014
    Publication date: December 25, 2014
    Inventor: Li-Chun SHIUE
  • Patent number: 8890759
    Abstract: A horn antenna for a radar device including a dielectric filling body arranged in a hollow horn section of a metal body and a dielectric cover attached to the filling body and sealingly closing the open end of the metal body. The filling body includes a first conical portion that is fittingly received in the hollow horn section, and a second conical portion that is situated away from the open end and dimensioned to leave a gap between itself and the wall of the hollow horn section. The dielectric filling body has a third portion between the first and second portions, where the third portion and the opposite portion of the wall of the hollow horn section are provided with circumferential grooves arranged in pairs opposite each other to provide a wear and maintenance-free attachment of the dielectric filling body in the horn antenna.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: November 18, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Valentin Pantea, Mihai-Gabriel Serban, Baljinder Singh
  • Publication number: 20130342412
    Abstract: An antenna for use with electromagnetic waves includes a waveguide body having an open end and first threads and a cap having second threads which interface with the first threads to press the cap against the open end. The cap includes a cover which covers the open end when the cap is screwed onto the open end using the first and second threads while allowing the electromagnetic waves to pass through the cover. The antenna can be a horn antenna, and can also be a feedhorn antenna used with a reflector in a reflector antenna.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 26, 2013
    Applicant: Hughes Network Systems, LLC
    Inventors: Thomas JACKSON, Lawrence CRONISE, Krishna Prakash HARI
  • Publication number: 20130293418
    Abstract: An assembly includes a self-contained, adjustable shrouding for a MIMO or SISO, or combination thereof, retransmission system enclosure. The enclosure ensures proper coverage areas of small to large facilities. The proper coverage is achieved through cake layer pie designs that previously often resulted in capacity and sector overlay issues. The antenna enclosure has a directional nature that allows for dividing stadiums, arenas, tracks, (or other large groups) into manageable smaller coverage areas through controlled directional zoning.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 7, 2013
    Inventors: Mark Richard Bacon, Rob Thomas Gangle, Kyle Jeffrey Eggert, Paul Edward Bacon
  • Patent number: 8564490
    Abstract: The disclosure provides an antenna device, which includes a waveguide antenna having wall surfaces and for emitting a radio wave in a direction substantially perpendicular to an emission face that is one of wall surfaces of the waveguide antenna extending in an elongated direction of the waveguide antenna, a plate-shape two-dimensional opening slots for beam formation formed in the waveguide antenna on the emission face side, a power feed waveguide module arranged in the rear face of the waveguide antenna opposite from the emission face and for supplying electric power to the waveguide antenna, and a cylindrical radome having a substantially circular cross-section of a diameter that is substantially equal to a length of the emission face in a direction perpendicular to the long-side direction so that the waveguide antenna is contained in the radome so as to be arranged at substantially the center of the radome.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: October 22, 2013
    Assignee: Furuno Electric Company Limited
    Inventors: Tetsuya Miyagawa, Koji Yano, Makoto Oda, Takashi Omori, Motoji Kondo, Masato Sakamoto
  • Publication number: 20130099989
    Abstract: A horn antenna for a radar device including a dielectric filling body arranged in a hollow horn section of a metal body and a dielectric cover attached to the filling body and sealingly closing the open end of the metal body. The filling body includes a first conical portion that is fittingly received in the hollow horn section, and a second conical portion that is situated away from the open end and dimensioned to leave a gap between itself and the wall of the hollow horn section. The dielectric filling body has a third portion between the first and second portions, where the third portion and the opposite portion of the wall of the hollow horn section are provided with circumferential grooves arranged in pairs opposite each other to provide a wear and maintenance-free attachment of the dielectric filling body in the horn antenna.
    Type: Application
    Filed: October 19, 2012
    Publication date: April 25, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventor: Siemens Aktiengesellschaft
  • Patent number: 8378904
    Abstract: An antenna is provided for use with a vehicle that includes a body that is encased by a thermal protection system (TPS). An opening extends through the TPS and the vehicle body, and an antenna assembly and a seal member are positioned within the opening. The seal member extends about the antenna assembly and is radio frequency (RF) opaque. A window extends across the opening to retain the antenna assembly and seal member within the opening. The window is RF transparent.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: February 19, 2013
    Assignee: The Boeing Company
    Inventors: Joseph M. Colich, Lee F. Scuderi, Edward A. Eiswirth
  • Publication number: 20130027263
    Abstract: According to one embodiment, an antenna device includes a leaky coaxial cable, an electrical device and a cover. The cover which is formed with a slender internal space having a first and second ends in the length direction and a first and second vent holes that respectively connect the internal space with the outside at each of the neighbourhood of the first and second ends, and houses the leaky coaxial cable and the electrical devices in the internal space.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 31, 2013
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Katsumi Gocho, Hiroki Mochizuki
  • Publication number: 20120306710
    Abstract: An antenna element and a phased array antenna including a plurality of such antenna elements are described. The antenna element includes a waveguide configured for operating in a below-cutoff mode and having a cavity, an exciter configured for exciting the waveguide, and a shield. The shield includes a holder arranged within the cavity, and a front plate mounted on the holder and disposed over at least a part of the exciter.
    Type: Application
    Filed: October 12, 2010
    Publication date: December 6, 2012
    Applicant: ELTA SYSTEMS LTD.
    Inventors: Shaul Mishan, Reuven Bauer
  • Patent number: 8279130
    Abstract: Microwave antenna for a level indicator, with an antenna cavity having a radiating aperture which can be closed with an HF-permeable disk that is fixed in position within the antenna cavity by means of a snap ring, and at least one sealing component is provided to seal the transitional area between the disk and the microwave antenna.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: October 2, 2012
    Assignee: Vega Grieshaber KG
    Inventor: Juergen Dietmeier
  • Patent number: 8085213
    Abstract: A low noise block converter feedhorn (LNBF) is disclosed. The LNBF comprises a PCB, a dielectric resonator oscillator (DRO), a chamber, a tuning screw, and a cover. The DRO is placed on the PCB. The chamber has a first partition, and the first partition is used to cover up the DRO. The chamber further comprises a round hole. The tuning screw passes through the round hole and is then used to adjust the oscillating frequency of the DRO. The cover is used to cover up the tuning screw in order to restrain the DRO from power leakage through the gap in between the round hole and the tuning screw.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: December 27, 2011
    Assignee: Wistron Neweb Corp.
    Inventors: Tsan-Chou Wu, Wen-Tsai Tsai, Chen-Yueh Chen
  • Publication number: 20110248883
    Abstract: The disclosure provides an antenna device, which includes a waveguide antenna having wall surfaces and for emitting a radio wave in a direction substantially perpendicular to an emission face that is one of wall surfaces of the waveguide antenna extending in an elongated direction of the waveguide antenna, a plate-shape two-dimensional opening slots for beam formation formed in the waveguide antenna on the emission face side, a power feed waveguide module arranged in the rear face of the waveguide antenna opposite from the emission face and for supplying electric power to the waveguide antenna, and a cylindrical radome having a substantially circular cross-section of a diameter that is substantially equal to a length of the emission face in a direction perpendicular to the long-side direction so that the waveguide antenna is contained in the radome so as to be arranged at substantially the center of the radome.
    Type: Application
    Filed: January 28, 2011
    Publication date: October 13, 2011
    Inventors: Tetsuya Miyagawa, Koji Yano, Makoto Oda, Takashi Omori, Motoji Kondo, Masato Sakamoto
  • Publication number: 20110063183
    Abstract: A conical radiator coupled to an antenna patch disposed along a first end of the radiator, said patch disposed on an insulator. A ground plane is connected to the insulator and a radome is disposed opposite a second end of the radiator. The radome has a first region presenting a convex surface towards the radiator, and the radome has a second region presenting a concave surface towards the radiator. The first end of the conical radiator is the apex of the cone. A ground plane is included and a portion of the ground plane is a planar surface and another portion extends away from the planar portion towards the radome. Also disclosed is a method for forming a radiation pattern by shaping the radome to effectuate a predetermined radiation pattern using localized convex and concave surfaces positioned on the radome at different points in relation to the conical radiator.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 17, 2011
    Applicant: UBiQUiTi Networks, Inc
    Inventor: John R. Sanford
  • Publication number: 20100079348
    Abstract: Microwave antenna for a level indicator, with an antenna cavity having a radiating aperture which can be closed with an HF-permeable disk that is fixed in position within the antenna cavity by means of a snap ring, and at least one sealing component is provided to seal the transitional area between the disk and the microwave antenna.
    Type: Application
    Filed: September 1, 2009
    Publication date: April 1, 2010
    Applicant: VEGA Grieshaber KG
    Inventor: Juergen DIETMEIER
  • Publication number: 20090207085
    Abstract: An antenna aperture for mounting on the outside mast structure of a submarine is disclosed. The antenna aperture is designed to withstand hydrostatic pressure cycles as would be experienced by a submarine. The antenna is constructed of a highly corrosion resistant housing upon which a wide angle impedance (WAIM) cover designed to meet antenna RF requirements is integrated.
    Type: Application
    Filed: November 7, 2006
    Publication date: August 20, 2009
    Applicant: THE BOEING COMPANY
    Inventors: Mark R. Davis, Richard N. Bostwick, David N. Rasmussen, Gary E. Miller
  • Patent number: 7154450
    Abstract: A feed window for a feed assembly having at least one primary feed operating at a primary frequency band and at least one secondary feed operating at a secondary frequency band. The feed window sealing against the feed assembly, enclosing an open end of the feeds. A feed window surface of the feed window supported by and spaced away from the feed assembly by a feed window wall. The feed window surface of the feed window generally parallel to a launch edge of the feeds. The feed window may include an insert positioned between the feed window surface and the feeds. An insert aperture may be applied to the insert, corresponding to a feed view window of one of the feeds.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: December 26, 2006
    Assignee: Andrew Corporation
    Inventor: Neil Wolfenden
  • Patent number: 6788267
    Abstract: An antenna system is disclosed that includes a mast, waveguides positioned about the mast, and a feed system positioned external to the mast and between adjacent waveguides, such the feed system can be easily serviced. The waveguides include spherical radiator elements that are easy to manufacture, and thus reduce the cost associated with wideband cavity-backed antennas.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: September 7, 2004
    Assignee: SPX Corporation
    Inventor: John Schadler
  • Patent number: 6766143
    Abstract: In an independent basic service set (IBSS) of IEDs, using wireless communications devices to provide license-free two-way wireless peer to peer communications of digital data between pairs of IEDs, and also to provide wireless peer to peer communications between ones of said IEDs and a common access port to the IBSS.
    Type: Grant
    Filed: January 8, 2000
    Date of Patent: July 20, 2004
    Inventor: Robert W. Beckwith
  • Publication number: 20030151560
    Abstract: The present invention relates to an antenna system for a level measuring device for emitting microwaves by means of an antenna horn (2), at the front side of the smaller funnel aperture thereof, HF energy in the form of microwave signals is directly axially coupled by means of planar structures having one patch or several patches (4).
    Type: Application
    Filed: November 26, 2002
    Publication date: August 14, 2003
    Applicant: Vega Grieshaber KG
    Inventors: Klaus Kienzle, Jurgen Motzer, Daniel Schultheiss, Josef Fehrenbach
  • Patent number: 6014110
    Abstract: A low profile, receiving and/or transmitting antenna is adapted to be mounted onto an interior portion of a building or other structure to receive or transmit radiation through a first dielectric material, such as a window, associated with the building or other structure. The antenna includes a receiving/transmitting horn filled with a second dielectric material and a surface for mounting the antenna to the first dielectric material so that the horn is disposed at a particular angle with respect to a surface of the first dielectric material. A matching layer may be disposed between the first dielectric material and the second dielectric material to provide for a reflectionless match between the first and second dielectric materials.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: January 11, 2000
    Assignee: Hughes Electronics Corporation
    Inventor: William B. Bridges
  • Patent number: 5757331
    Abstract: A leakage dielectric waveguide includes a housing made of plane-shaped electrical conductors located parallel to each other, and a dielectric strip for propagating a high-frequency wave between the parallel electrical conductors, wherein the dielectric strip is provided within the housing. The housing is arranged to be asymmetrical, thereby leaking and radiating a high-frequency wave propagating through the dielectric strip. The housing is preferably further composed of the plane-shaped parallel electrical conductors and a side wall. A plane antenna includes the above-mentioned leakage dielectric waveguide, and a projecting device for projecting the high-frequency wave toward a free space in response to a high-frequency wave being projected from the dielectric waveguide.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: May 26, 1998
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tsukasa Yoneyama, Youhei Ishikawa, Tohru Tanizaki
  • Patent number: 5218373
    Abstract: Directed millimeter wave radiation from internal elements of a microwave circuit through the housing cover, housing base, and side walls of a hermetically-sealed MMIC integrated subsystem assembly uses a waffle-wall array of conductive posts as a band rejection filter to provide walls which guide the radiated waves through a hermetically sealed window in the housing base for waveguide propagation or to a dielectric side wall or cover to radiate energy therethrough. For a waveguide launch, the launch probe is printed on a TEM mode microstrip transmission line substrate and is located over or on a dielectric window formed at the end of an air filled waveguide. A waveguide-like mode of propagation is launched perpendicular to the microstrip substrate and the energy is transmitted through the dielectric window into the air dielectric waveguide which extends through the housing base.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: June 8, 1993
    Assignee: Harris Corporation
    Inventors: Douglas Heckaman, Ronald Vought
  • Patent number: 5027130
    Abstract: A radome includes a radome member formed of a dielectric to protect an antenna element from outside space and a structural member formed of metal for supporting the antenna element at the center thereof and to which the radome member is joined at the periphery of the antenna element to support the radome member. When the radome member is formed of dielectric and the structural member is formed of metal, the junction therebetween serves as a kind of antenna and the radiation characteristic of the ordinary antenna element is disturbed. To solve this problem, a portion of the radome member through which an electric wave is transmitted is formed of material through which an electromagnetic wave having a frequency identical with that of the electric wave is transmitted and a junction formed between the radome member and the structural member has a structure for absorbing the electric wave.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: June 25, 1991
    Assignee: Tokyo Keiki Co., Ltd.
    Inventors: Noriyuki Akaba, Satoshi Itoh
  • Patent number: 4792812
    Abstract: A low-cost, essentially self-contained microwave earth station having a reflector dish together with the microwave sensing/emitting elements embedded in a rigid, low density and low thermal conductivity plastic foam. At least the sides and back of the unit may be encased in a fiberglass-resin shell. Shielding for terrestrial interference also may be present. For a receive-only station, a low noise amplifier together with frequency conversion and channel selection (or all-channel transmission) to circuits may also be embedded in the foam. The only connections to such a receive-only unit are a line from a d-c source of power for supplying the required operating voltages to the electronics, and a coaxial cable supplying the selected one of the received information signals to the TV display or other device utilizing those signals. Preferably, a single coaxial line with the dual function of information output and d-c power input is employed.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: December 20, 1988
    Inventor: Wayne R. Rinehart
  • Patent number: 4689627
    Abstract: A dual band, phased array antenna especially adaptable for tactical radar capable of performing search, track and identification in a hostile jamming environment. The dual band array antenna is essentially two antennas sharing a common antenna aperture. The two antennas possess separate feed system and beam steering control. Thus, the beams for each frequency band can be steered independently and simultaneously. This design utilizes an ultra-wide band radiating element which can operate over approximately an octave bandwidth encompassing two adjacent microwave bands. In particular, the dual band signals can be received efficiently by the radiating element. A dual band coaxial-to-waveguide transition can be used to carry the signals to a diplexer. The dual band signals are separated at the diplexer and can be processed in separate feed networks.
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: August 25, 1987
    Assignee: Hughes Aircraft Company
    Inventors: Kuan M. Lee, Nam S. Wong, Ruey S. Chu, Ray Tang
  • Patent number: 4511899
    Abstract: A horn-reflector microwave antenna comprises the combination of a paraboloidal reflector for transmitting and receiving microwave signals; a tapered feed horn extending downwardly from the reflector for guiding microwave signals to and from the reflector; a waveguide connected to the lower end of the feed horn; and a dielectric membrane extending across the interior of the feed horn for collecting any debris that falls down into the feed horn. In the preferred embodiment of the invention, the outer periphery of the dielectric membrane is secured to the interior walls of the feed horn, and the central portion of the membrane is elevated above the periphery thereof so that debris collected on the membrane slides to the walls of the feed horn.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: April 16, 1985
    Assignee: Andrew Corporation
    Inventor: Eric L. Brooker
  • Patent number: 4282530
    Abstract: The present invention relates to a method for reducing the weather cover-induced reflection sidelobes associated with horn reflector antenna arrangements. More particularly, the present invention consists of attaching the weather cover (26) to curved forms (21,23) placed in the antenna aperture, where the forms are shaped to contour the weather cover into a cylindrical paraboloid form, this form being capable of focusing the reflections from the weather cover onto a line inside the antenna arrangement. By covering this line inside the antenna with microwave absorbing material, (36) the focused weather cover reflections may be absorbed, thereby significantly reducing the sidelobes caused by the presence of the weather cover.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: August 4, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Ralph A. Semplak
  • Patent number: 4086591
    Abstract: A device for reducing the backlobe radiation from small aperture antennas is shown to comprise a thin hemispherical radome having both radio frequency energy absorbing and reflecting materials attached thereto. The absoring material dissipates a portion of the edge currents existing on the antenna aperture, while the reflecting material intercepts a portion of the energy radiated from the antenna and reflects that portion back to the edge of the antenna to produce destructive interference with the edge currents.
    Type: Grant
    Filed: September 28, 1976
    Date of Patent: April 25, 1978
    Assignee: Raytheon Company
    Inventors: Kazimierz Siwiak, Robert L. Moran
  • Patent number: 4047180
    Abstract: A broadband (8-18 GHz) radomed horn antenna system comprises a conical horn having broadband slots on the inner surface and a radome having a frusto-conical side wall and a spherically shaped transverse wall inserted into the horn. The radome wall is thin relative to operating wavelength. The radome side wall fits snugly against the inner surface of the horn wall so that transverse wall is proximate to the horn feed port with its convex side facing toward the horn aperture. The cylindrical feed guide contains a higher order hybrid mode suppressor which maintains a substantially uniform radiation pattern over the operating band with an acceptable insertion loss.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: September 6, 1977
    Assignee: GTE Sylvania Incorporated
    Inventors: Samuel Chung-Shu Kuo, William D. Rosser
  • Patent number: 4012743
    Abstract: An improved antenna system of the type including a parabolic antenna with offset exciting in which only the upper portion of the parabola is used, an approximately horizontal bottom plate, and an exciter which is disposed above the bottom plate. The exciter has a tilt angle of about 50.degree.. The paraboloidal reflector is covered by a dielectric cover plate which is inclined to the vertical so that the cover plate and parabola contact in a single plane, and a portion of both sides of the width of the parabola is removed, and side sheets are provided to connect the paraboloidal bowl and the cover plate. The exciter is a conical multimode exciter with an aperture angle of about 100.degree. and is provided with at least one and preferably a plurality of concentrically arranged slits on the conical surface of the exciter facing the paraboloidal reflector with the depth of the slits decreasing in a direction toward the edge of the cone adjacent the reflector. The width of the slits is between .lambda./10 and .
    Type: Grant
    Filed: February 6, 1976
    Date of Patent: March 15, 1977
    Assignee: Licentia Patent-Verwaltungs-G.m.b.H.
    Inventor: Kurt Maciejewski
  • Patent number: 3942138
    Abstract: A waveguide launcher apparatus for coupling a coaxial transmission line to a waveguide array antenna element. The waveguide launcher apparatus utilizes its short depth to achieve the desired match between the coaxial connector and free space. The launcher apparatus has an L shape which performs as a matching element and as an adaptor between the coax transmission line and wave guide sections.
    Type: Grant
    Filed: February 4, 1974
    Date of Patent: March 2, 1976
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: William Hugh Schaedla