Biconical Horn Type Patents (Class 343/773)
  • Patent number: 10833399
    Abstract: A cone antenna has at least one resistor electrically coupled to the radiating structure of the cone antenna. The capacitor may be part of a resistor network that is electrically connected to the cone. One or more patches may be coupled to the resistor network which act as a capacitor. A feed card may be embedded within a ground plane to enable the exterior of an antenna assembly to be conformal with an outer surface of a platform carrying the cone antenna.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 10, 2020
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Dean W. Howarth, Jonothan S. Jensen, Andrew C. Maccabe, Patrick D. McKivergan
  • Patent number: 10665948
    Abstract: Systems and methods improve tracking performance of an ultra-wideband (UWB) tracking tag positioned on a player on a sporting field. A UWB antenna is formed with power radiated disproportionately in forward and backward directions as compared to sideways. The UWB tracking tag is aligned with the UWB antenna when positioned on the player such that less power is absorbed by the player than radiated away from the player. The UWB antenna is monopole and may be folded from a single metal sheet forming: a flat top; a first side folded at an acute angle from one edge of the top; a second side folded at an acute angle from another edge of the top; a first solder tab folded at an obtuse angle from the first side; and a second solder tab folded at an obtuse angle from the second side, to join in parallel with the first solder tab.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: May 26, 2020
    Assignee: ISOLYNX, LLC
    Inventor: Alexander T. Farkas
  • Patent number: 10446934
    Abstract: Systems and methods improve tracking performance of an ultra-wide-band (UWB) tracking tag positioned on a player on a sporting field. A UWB antenna is formed with power radiated disproportionately in forward and backward directions as compared to sideways. The UWB tracking tag is aligned with the UWB antenna when positioned on the player such that less power is absorbed by the player than radiated away from the player. The UWB antenna is monopole and may be folded from a single metal sheet forming: a flat top; a first side folded at an acute angle from one edge of the top; a second side folded at an acute angle from another edge of the top; a first solder tab folded at an obtuse angle from the first side; and a second solder tab folded at an obtuse angle from the second side, to join in parallel with the first solder tab.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: October 15, 2019
    Assignee: ISOLYNX, LLC
    Inventor: Alexander T. Farkas
  • Patent number: 10431893
    Abstract: The omnidirectional multiband antenna is a variant on a monocone antenna, particularly including a corrugated extending surface for lowering the low frequency cutoff of the monocone antenna. The omnidirectional multiband antenna includes an electrically conductive conical surface, having a vertex end and a base end, and at least one electrically conductive annular member mounted on the base end. The at least one electrically conductive annular member is formed from a plurality of stacked segments and has a corrugated exterior surface. The vertex end of the electrically conductive conical surface is positioned adjacent to, and spaced apart from, a first surface of a ground plane plate. A plurality of cylindrical rods is provided, a first end of each rod being secured to the at least one electrically conductive annular member, and a second end of each rod being mounted on the first surface of the ground plane plate.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: October 1, 2019
    Assignee: King Saud University
    Inventors: Waleed Tariq Sethi, Khaled Issa, Muhammad Ahmed Ashraf, Habib Fathallah, Saleh Alshebeili
  • Patent number: 10249956
    Abstract: Method and apparatus for making antennas and antenna components suitable for wideband transmission and reception are disclosed. Material accretion devices or apparatus such as a 3D printer can be used to form the antennas and antenna components. The antenna and antenna components can include pleated and/or self-similar features.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: April 2, 2019
    Assignee: Fractal Antenna Systems, Inc.
    Inventors: Nathan Cohen, Philip Salkind
  • Patent number: 10164332
    Abstract: Multi-directional antenna assemblies including a plurality of individual antenna sections arranged in-line with a long axis, forming a linear assembly. An antenna assembly may include a radome over the linear assembly. A linear assembly may include three or more antenna sections, each with a trough-like reflector formed by two parallel walls, and may have corrugations at the outer edges to reduce noise. An array of radiators may be positioned at the base of each antenna section. The antenna sections may share a common vertical axis and each may have a beam axes that is offset by an angle. Adjacent antenna sections may be separated by an isolation plate with a corrugated outer edge. Each antenna section may radiate greater power in a specific direction as compared to the other antenna sections.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: December 25, 2018
    Assignee: Ubiquiti Networks, Inc.
    Inventors: Robert J. Pera, John R. Sanford, Yanwei Sun
  • Patent number: 9923265
    Abstract: Methods and systems are provided for low-profile or hidden antennas, and for installation and use of such antennas in particular locations, such as surfaces of roadways, pavements, walls, and/or ceilings. An example antenna system may comprise a ground conductor configured to provide a ground plane for the antenna system, where the ground conductor comprises a recess, a monocone arranged in the recess of the ground conductor, and a conductive coupling between the monocone and the ground conductor to ground the monocone. A geometrical configuration of one or more components of the antenna system may be selected adaptively to set (or select) one or more property of the antenna—e.g., resonance property of the antenna.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: March 20, 2018
    Assignee: SWISSCOM AG
    Inventor: Nima Jamaly
  • Patent number: 9918124
    Abstract: Aspects of the subject disclosure may include, for example, a system for receiving decoded satellite signals, obtaining media channels from the decoded satellite signals, selecting a portion of the media channels for distribution to a plurality of media processors, encoding the portion of the media channels selected according to a satellite distribution protocol, such as a protocol that facilitates satellite switching, to generate satellite encoded content, formatting the satellite encoded content according to a transport protocol to generate formatted content, and providing the formatted content for distribution to the plurality of media processors via a communication network, such as a single wire communication network or other network. Other embodiments are disclosed.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: March 13, 2018
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Irwin Gerszberg, Farhad Barzegar, Mitchell Harvey Fuchs, John Babu Medamana
  • Patent number: 9905930
    Abstract: The present invention provides an omni-directional ceiling antenna, including: a cone cylinder-shaped radiation oscillator, a cone cylinder-shaped reflector, a disc cylinder-shaped base plate, and a dielectric ring; where the reflector includes a first hollow cone and a first cylindrical ring, a flared end of the first hollow cone is connected to the first cylindrical ring, and an outer diameter of the first cylindrical ring is smaller than that of the flared end of the first hollow cone; a second cylindrical ring is provided on the base plate, and the second cylindrical ring sockets to the first cylindrical ring to form a spatially separated coupling structure; the dielectric ring is provided between the second cylindrical ring and the first cylindrical ring so as to realize separation and fixed support between the reflector and the base plate.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: February 27, 2018
    Assignee: CHINA UNITED NETWORKS COMMUNICATIONS GROUP COMPANY LIMITED
    Inventors: Xiaoming Huang, Xinliang Liu, Xinming Chen, Qiang Fu, Junbin Mo, Anmin Deng
  • Patent number: 9825368
    Abstract: Method and apparatus for making antennas and antenna components suitable for wideband transmission and reception are disclosed. Material accretion devices or apparatus such as a 3D printer can be used to form the antennas and antenna components. The antenna and antenna components can include folded and/or self-similar features.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: November 21, 2017
    Inventors: Nathan Cohen, Philip Salkind
  • Patent number: 9812785
    Abstract: Provided is a waveguide tube slot antenna (A), including: a waveguide tube (10) having a transverse section having a rectangular shape in each part of a waveguide (2) in an extending direction thereof; and a plurality of radiating slots (3) arranged in the waveguide tube (10) at predetermined intervals, in which: the waveguide tube (10) includes a first waveguide tube forming member (11) and a second waveguide tube forming member (12) each having the transverse section having a shape with an end, the first waveguide tube forming member (11) and the second waveguide tube forming member (12) being configured to define the waveguide (2) by being coupled to each other; and the first waveguide tube forming member (11) is formed to have a flat shape and includes the plurality of radiating slots (3).
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: November 7, 2017
    Assignee: NTN CORPORATION
    Inventors: Tomokazu Sonozaki, Hiroyuki Noda, Natsuhiko Mori
  • Patent number: 9774084
    Abstract: Disclosed are exemplary embodiments of omnidirectional broadband antennas. In an exemplary embodiment, an antenna generally includes a ground element, an antenna element, and an annular patch element. The antenna element may be electrically isolated from the ground element. The antenna element may include at least one portion that is substantially conical, substantially pyramidal, and/or that tapers in a longitudinal direction. The annular patch element is electrically grounded to the ground element. The annular patch element surrounds at least a portion of the antenna element and is parasitically coupled to the antenna element.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: September 26, 2017
    Assignee: Laird Technologies, Inc.
    Inventors: Yuan Xu, Athanasios Petropoulos, Shawn Wayne Johnson
  • Patent number: 9680227
    Abstract: An antenna assembly having a pair of feed conductive elements directed in divergent directions, with each pair of conductive elements including a conical sheet conductor and a cylindrical sheet conductor, and radiating wire conductors extending away from each cylindrical sheet conductor. A balun feed system is defined between the pair of conical sheet conductors. A plurality of ferrite-cored inductors are provided on the wire conductors. A tubular radome assembly protects at least the radiating wire conductors from damage from external forces.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: June 13, 2017
    Inventors: Greg Johnson, Kevin Ketelsen
  • Patent number: 9614273
    Abstract: Various technologies presented herein relate to constructing and/or operating an antenna having an omnidirectional electrical field of constant phase. The antenna comprises an upper plate made up of multiple conductive rings, a lower ground-plane plate, a plurality of grounding posts, a conical feed, and a radio frequency (RF) feed connector. The upper plate has a multi-ring configuration comprising a large outer ring and several smaller rings of equal size located within the outer ring. The large outer ring and the four smaller rings have the same cross-section. The grounding posts ground the upper plate to the lower plate while maintaining a required spacing/parallelism therebetween.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: April 4, 2017
    Assignee: Sandia Corporation
    Inventor: Matthew Sena
  • Patent number: 9608323
    Abstract: An omni-directional antenna can include a feed disk, which can terminate at a feed disk apex, and a top element, which can include a nipple that terminates a top element apex. The feed disk and top element can be positioned so that the feed disk apex and the top element apex can be spaced-apart by a distance “d”, which can be chosen according to the desired frequency range and cable feed impedance. The feed disk and top element can also have respective bottom conical and top conical surfaces. When the feed disk and top element are positioned, the top and bottom conical surfaces can establish a respective first predefined angle relative to a horizontal plane and a second predefined angle relative to the horizontal plane, thereby extending the antenna frequency range. The predefined angles can be chosen according to the desired frequency range of operation and cable feed impedance.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: March 28, 2017
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Peter Stuart Berens, David Vincent Arney, Hale Bradford Simonds, Susan Lynn Morales, Dennis Bermeo
  • Patent number: 9601834
    Abstract: Exemplary embodiments, the present disclosure are related to an antenna system including radiating elements and reflectors. The reflectors can be disposed with respect to the radiating elements to reflect radiation from the radiating elements to generate a coverage area that exceeds the coverage area generated by the radiating elements without the reflectors.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: March 21, 2017
    Assignee: Wal-Mart Stores, Inc.
    Inventors: Stan Rankin, Brock Judd, Mark Edwards
  • Patent number: 9553369
    Abstract: Systems and devices relating to a biconical antenna. The antenna has a top cone assembly and a bottom cone assembly, each cone assembly being coupled to a dielectric spacer at its apex. Each cone assembly has a cone section and a truncated cone section. The cone section is a cone with an apex which forms the apex of the cone assembly. The truncated cone section is coupled to the cone of the cone section at the cone's rim. The cone has an opening angle which is larger than the opening angle of the truncated cone. The biconical antenna can be fed by way of a coaxial cable with the outer cable feeding the bottom cone assembly and the inner cable feeding the top cone assembly.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 24, 2017
    Assignee: HER MAJESTY THE QUEEN IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF NATIONAL DEFENCE
    Inventors: Gilbert A. Morin, Larry Ryan
  • Patent number: 9515389
    Abstract: Exemplary embodiments, the present disclosure are related to an antenna system including radiating elements and reflectors. The reflectors can be disposed with respect to the radiating elements to reflect radiation from the radiating elements to generate a coverage area that exceeds the coverage area generated by the radiating elements without the reflectors.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 6, 2016
    Assignee: Wal-Mart Stores, Inc.
    Inventors: Stan Rankin, Brock Judd, Mark Edwards
  • Patent number: 9385434
    Abstract: A multiple input, multiple output (MIMO) antenna system includes an electrically conductive, substantially planar, ground reference and a plurality of antenna assemblies electrically connected to respective antenna feeds at respective connection points. The antenna assemblies extend on a first side of the ground reference and are formed from a conductive material. Each antenna assembly is rotationally asymmetric around an axis perpendicular to the ground reference and passing through the connection point.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 5, 2016
    Assignee: MP Antenna Ltd.
    Inventor: Adam Doskocil
  • Patent number: 9331392
    Abstract: An apparatus includes an antenna element and a curved ground plane positioned beneath the antenna element. The antenna element has a height h and a first end with a tapered width, where h is approximately equal to the distance of a width-wise cross-sectional curve of the curved ground plane. The width of the curved ground plane is less than or equal to ½ h. A load may be positioned on top of a second end of the antenna element. The second end of the antenna element has a thickness greater than the first end and less than a thickness of the load. The curved ground plane may be substantially hemispherical in shape or may have a tapered height and increase in width from a first end to a second end.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 3, 2016
    Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
    Inventor: Dennis G. Bermeo
  • Patent number: 9306262
    Abstract: A turnstile antenna element and balun for use in a phased array are described. The antenna includes a plurality of stacked bowtie radiators. Each stacked bowtie radiator includes a driven conductor and a passive conductor separated by a dielectric. The balun includes a central member having dielectric slabs symmetrically disposed on external surfaces thereof. At least one end of the balun is provided having a shape such that conductors on the dielectric slabs of the balun can be coupled to the driven radiator conductors.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: April 5, 2016
    Assignee: Raytheon Company
    Inventors: Angelo M. Puzella, Kenneth S. Komisarek, James A. Robbins
  • Patent number: 9252495
    Abstract: An antenna is adapted for operation over a broadband frequency. The antenna includes a conical portion and a tapered portion. The conical portion may have a bicone structure, where each cone has a tapered portion. The tapered portion tapers asymptotically with an exponential.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 2, 2016
    Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
    Inventor: Thomas O. Jones, III
  • Patent number: 9230207
    Abstract: The present invention relates to a RFID tag antenna with ultra-thin dual-frequency micro strip patch antenna array, the RFID tag antenna comprises an units array (1), a substrate (2) and a substrate base plate (3); the radiation units array (1) is configured to be asymmetrically distributed around a chip; a first radiation unit (5) and a third radiation unit (7) form a low-frequency resonant system of the RFID tag antenna (9), and a second radiation unit (6) and a fourth radiation unit (8) form a high-frequency resonant system of the RFID tag antenna (9), thereby achieving a dual-frequency effect, and enabling the RFID tag antenna of the present disclosure to be compatible with both of the working frequency bands in Europe and in U.S., and thus achieving a dual-frequency-band property.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: January 5, 2016
    Assignees: XERAFY LTD (BVI), SHANGHAI YAOCHUAN INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Zhijia Liu, Guohong Du
  • Patent number: 9160076
    Abstract: A MMIC amplifier is directly connected to the balanced feed points at the aperture of an antenna to eliminate the distance between electronics coupled to the antenna and the antenna itself, such that interfaces, components and connection lines which introduce losses and parasitic effects that degrade system performance are eliminated due the direct connection. Expanding the aperture of the antenna to accommodate the direct connection of a MMIC amplifier to balanced feed points of an antenna has been found to have no deleterious effects on antenna performance. Moreover, when coupling the MMIC amplifier to an unbalanced coaxial line, any associated ripple is minimized due to the direct connection.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: October 13, 2015
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: David E. Meharry, David P. Charette
  • Patent number: 9077076
    Abstract: A compact, ultra-broadband antenna with doughnut-like radiation pattern is provided as including a first assembly having first and second ends; a second assembly having first and second ends, the first and second ends each configured to have a substantially hemispherical shape; and a cable configured to extend through the first and second assemblies and out each of the first and second ends.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: July 7, 2015
    Assignee: Keysight Technologies, Inc.
    Inventor: Gregory S. Lee
  • Patent number: 9077080
    Abstract: An antenna for passing a cable to a second antenna includes shorts positioned along a circumferential perimeter of the antenna, first and second bicone sections of oppositely directed conductive cone sections energized at respective apices and opening along an antenna axis, first and second dipole sections, where the first dipole section is joined together with and extending from the first conical section to the circumferential perimeter of the antenna, and where the second dipole section is joined together with and extending from the second conical section to the circumferential perimeter of the antenna.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: July 7, 2015
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Michael J. Josypenko
  • Publication number: 20150145741
    Abstract: An antenna system capable of achieving simultaneous transmit and receive (STAR.) operation over a wide bandwidth includes a ring array of TEM horn elements and a centrally located monocone or bicone antenna. The TEM horn elements each include a capacitive feed. The elements of the ring array are excited using a phasing scheme that results in signal cancellation, at the location of the central element. The ring array may serve as either the transmit antenna or the receive antenna.
    Type: Application
    Filed: September 11, 2014
    Publication date: May 28, 2015
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: William F. Moulder, Bradley T. Perry, Jeffrey S. Herd
  • Patent number: 8928546
    Abstract: An antenna for producing an omni-directional pattern, and using all frequencies of a frequency range simultaneously, is provided with first and second electrically conductive elements disposed coaxially relative to a central axis. The first element has a first surface of revolution about the axis, the first surface of revolution tapering radially outwardly while extending axially away from the second element to terminate at a first axial end of the first element. The second element has a second surface of revolution about the axis, the second surface of revolution tapering radially outwardly while extending axially toward the first element to terminate at a first axial end of the second element. The first and second surfaces of revolution overlap one another radially and axially, and are mutually non-conformal.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: January 6, 2015
    Assignee: Sandia Corporation
    Inventors: Travis Wayne Eubanks, Christopher Lawrence Gibson
  • Patent number: 8902120
    Abstract: A 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 may have a 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: Grant
    Filed: March 8, 2013
    Date of Patent: December 2, 2014
    Assignee: Ubiquiti Networks, Inc.
    Inventor: John R. Sanford
  • Patent number: 8884832
    Abstract: A ceiling-mount omni-directional antenna for indoor distribution system of mobile communication network and a method for manufacturing the same are provided. The antenna includes: a monopole consisting of a cone part and a columnar part, and a reflecting plate consisting of a cone part and a platform part, and a feed connector. The monopole and the reflecting plate are arranged in such that the tips of cone parts are opposite to each other. The signal is fed into the antenna through the feed connector and radiated outward by the monopole and the reflecting plate. In high frequency band, the maximal gain appears at about 70°, so that the signal power focuses at radiating angles of 60°-85°. The gain of the antenna increases 4.22 dB at a radiating angle of 85° and decreases IOdB at a radiating angle of 30°.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: November 11, 2014
    Assignee: China United Network Communications Group Company Limited
    Inventors: Xiaoming Huang, Yanzhou Mai, Qiang Fu, Xudong Chen, Zhongfeng Peng, Anmin Deng, Huiming Ge
  • Publication number: 20140327590
    Abstract: A MMIC amplifier is directly connected to the balanced feed points at the aperture of an antenna to eliminate the distance between electronics coupled to the antenna and the antenna itself, such that interfaces, components and connection lines which introduce losses and parasitic effects that degrade system performance are eliminated due the direct connection. Expanding the aperture of the antenna to accommodate the direct connection of a MMIC amplifier to balanced feed points of an antenna has been found to have no deleterious effects on antenna performance. Moreover, when coupling the MMIC amplifier to an unbalanced coaxial line, any associated ripple is minimized due to the direct connection.
    Type: Application
    Filed: July 16, 2014
    Publication date: November 6, 2014
    Inventors: David E. Meharry, David P. Charette
  • Patent number: 8878740
    Abstract: A horn antenna for a radar device comprising a metal body having a tubular hollow waveguide section opening into a hollow horn section, a dielectric filling body filling up the inner space of the horn section, and a dielectric cover, wherein the horn antenna is configured to protrude in a measurement environment, protected from highly aggressive process environments and is usable over a wide temperature range.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 4, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Tim Coupland, Gabriel Serban
  • Publication number: 20140266948
    Abstract: A feedhorn comprising a first section for coupling radiation from a waveguide into the feedhorn, and a second section for coupling radiation from the feedhorn into free space. The second section defines the feedhorn aperture. The first section is configured to allow excitation of HE11 and HE12 modes and suppress excitation of other higher order HE modes. The second section is configured to ensure that the HE11 and HE12 modes are in phase at the feedhorn aperture.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventors: Graham Smith, Johannes McKay
  • Patent number: 8730118
    Abstract: A biconical antenna driven by an equal-delay transformer is provided herein with a bifurcating ground plane. According to one embodiment, the biconical antenna comprises a pair of cone-shaped elements and a conducting ground plate. The cone-shaped elements are arranged back-to-back to one another and aligned along a first axis. The conducting ground plate is arranged between the cone-shaped elements in a plane perpendicular to the first axis. As described herein, the bifurcating ground plane provides the decoupling needed to eliminate the anomalous undulations, which tend to occur in the antenna response at odd-integer average quarter-wave frequencies.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: May 20, 2014
    Assignee: TDK Corporation
    Inventor: James McLean
  • Patent number: 8729440
    Abstract: A radio frequency heater is disclosed including a vessel for containing material to be heated and a radio frequency radiating surface. The vessel has a wall defining a reservoir. The radio frequency radiating surface at least partially surrounds the reservoir. The radiating surface includes two or more circumferentially spaced petals that are electrically isolated from other petals. The petals are positioned to irradiate at least a portion of the reservoir, and are adapted for connection to a source of radio frequency alternating current. A generally conical tank or tank segment having a conically wound radio frequency applicator is also contemplated. Also, a method of heating an oil-water process stream is disclosed. In this method a radio frequency heater and an oil-water process stream are provided. The process stream is irradiated with the heater, thus heating the water phase of the process stream.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: May 20, 2014
    Assignee: Harris Corporation
    Inventor: Francis Eugene Parsche
  • Patent number: 8698684
    Abstract: A device comprising a metallic conical portion, said conical portion substantially hollow having a vertex end and a base end, a first cylindrical portion disposed annularly about the base end of the conical portion, a metallic second cylindrical portion coupled to the vertex of the conical portion, said cylindrical portion having a threaded aperture, and an antenna feed coupled to the threaded aperture. The device may have a patch disposed on an insulator portion connected to the second cylindrical portion, said patch and insulator portion each having an aperture, and a metallic ground portion connected to the insulator portion, said ground portion having an ground aperture, and a threaded screw disposed through the ground aperture, the patch, the insulator aperture and into the threaded aperture. An RF feed may be created by coupling the threaded aperture to a conductive material disposed on the insulator portion.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 15, 2014
    Assignee: Ubiquiti Networks
    Inventor: John R. Sanford
  • Patent number: 8654025
    Abstract: A compact, omnidirectional, broadband biconical antenna is described, having a first segment with its tip coincident with a horizontal plane, with an elevation angle between 23 degrees and 30 degrees from the horizontal plane; an open second segment joined to a distal end of the first segment, an elevation angle approximately 30 degrees greater than the first segment angle; an open third segment joined to a distal end of the open second segment, an elevation angle approximately 30 degrees greater than the open second segment angle; an open fourth resistive film segment joined to a distal end of the open third segment, an elevation angle approximately equal to the open third segment angle, wherein the segments are mirrored to form a biconical antenna; and a transmission line coupled to the tip of the first segment, interior to the first segment.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: February 18, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David W. Brock, Hale B. Simonds, Peter S. Berens, David V. Arney, Robbi Mangra, Kelsey L. Burrell
  • Patent number: 8599079
    Abstract: Disclosed is an antenna capable of receiving a very wide band of frequencies. The antenna includes a pair of antenna elements and a pair of feeding legs, which are arranged symmetrically with respect to a line L, with a narrow space G in between.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: December 3, 2013
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Toshio Kudo, Shoji Nasu, Kazuyuki Kashihara, Toshiyuki Baba
  • Patent number: 8576135
    Abstract: A bicone antenna is provided with high bandwidth and beneficial return loss performance. The antenna is dipole based and thus its radiation pattern is not strongly influenced by shape and size of a nearby ground plane. A parasitic element comprising a conductive band encircling the antenna's feed structure improves matching, gain flatness, and makes the antenna less susceptible to detuning.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: November 5, 2013
    Assignee: Olympus Corporation
    Inventor: Ivan Krivokapic
  • Patent number: 8537066
    Abstract: The antenna assembly includes first and second adjacent antenna elements each having a tapered or conical antenna body with a base and an apex opposite the base. An elongated or cylindrical antenna body extends from the base of the conical antenna body, and includes a plurality of adjacent elongated or cylindrical antenna body portions, and a respective dielectric member separating adjacent cylindrical antenna body portions. Each of the first and second adjacent antenna elements are aligned along a common longitudinal axis with respective apexes in opposing relation to define a dipole antenna. Increased radiation pattern bandwidth and satisfactory pattern on the horizon may be achieved in such a biconical-type antenna.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: September 17, 2013
    Assignee: Harris Corporation
    Inventors: Russell W. Libonati, Larry Goldstein, Francis Eugene Parsche
  • Patent number: 8487824
    Abstract: A vertically polarized dipole or bicone antenna is positioned cylindrically with in many cylindrical layers of polarizing grids that slowly rotate the incident field to cross 0 degrees, i.e., 90 degrees to the horizon, and to attenuate or minimize the effects of gain nulls from reflections off of the innermost grid layer. Such an antenna is used for detecting both horizontal and vertical polarized signals over a broad bandwidth whereby the response to both polarizations is equal.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: July 16, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: Michael J. Josypenko
  • Patent number: 8421704
    Abstract: A 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 may have a 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: Grant
    Filed: February 4, 2012
    Date of Patent: April 16, 2013
    Inventor: John R. Sanford
  • Patent number: 8421700
    Abstract: A device comprising a metallic conical portion, said conical portion substantially hollow having a vertex end and a base end, a first cylindrical portion disposed annularly about the base end of the conical portion, a metallic second cylindrical portion coupled to the vertex of the conical portion, said cylindrical portion having a threaded aperture, and an antenna feed coupled to the threaded aperture. The device may have a patch disposed on an insulator portion connected to the second cylindrical portion, said patch and insulator portion each having an aperture, and a metallic ground portion connected to the insulator portion, said ground portion having an ground aperture, and a threaded screw disposed through the ground aperture, the patch, the insulator aperture and into the threaded aperture. An RF feed may be created by coupling the threaded aperture to a conductive material disposed on the insulator portion.
    Type: Grant
    Filed: February 4, 2012
    Date of Patent: April 16, 2013
    Assignee: Ubiquiti Networks, Inc.
    Inventor: John R. Sanford
  • Patent number: 8395559
    Abstract: A forty five degree polarized antenna having grid layers wrapped around a vertically polarized dipole, or grids wrapped internally or externally around a vertically polarized bicone antenna, and having grid segments separated by capacitors that can attenuate, remove or minimize circumferential resonances that appear due to the presence of the grids and reduce the nulling effects from reflections from the innermost grid layer.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: March 12, 2013
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Michael J. Josypenko
  • Publication number: 20130050040
    Abstract: The antenna assembly includes first and second adjacent antenna elements each having a tapered or conical antenna body with a base and an apex opposite the base. An elongated or cylindrical antenna body extends from the base of the conical antenna body, and includes a plurality of adjacent elongated or cylindrical antenna body portions, and a respective dielectric member separating adjacent cylindrical antenna body portions. Each of the first and second adjacent antenna elements are aligned along a common longitudinal axis with respective apexes in opposing relation to define a dipole antenna. Increased radiation pattern bandwidth and satisfactory pattern on the horizon may be achieved in such a biconical-type antenna.
    Type: Application
    Filed: August 25, 2011
    Publication date: February 28, 2013
    Applicant: Harris Corporation
    Inventors: Russell W. LIBONATI, Larry Goldstein, Francis Eugene Parsche
  • Patent number: 8339324
    Abstract: A wideband biconical antenna arrangement is disclosed having a feed arrangement that services a second antenna positioned above the biconical antenna. The feed for the second antenna is configured as a helix that spirals around an outer periphery of the upper and lower cones of the biconical antenna along the biconical antenna's cylindrical radiating aperture. In one embodiment, the feed is a coaxial cable disposed within a hollow metal tube. This helix feed does not substantially degrade the performance of the wideband biconical antenna. The wideband biconical antenna has its feed disposed within a central conduit of the biconical antenna. The biconical antenna has at least one octave of bandwidth, and in one embodiment the second antenna also has at least one octave of bandwidth.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: December 25, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: Pierre A. Dufilie
  • Patent number: 8314744
    Abstract: An antenna assembly may include first and second adjacent antenna elements each including a conical antenna body having a base and an apex opposite the base. The antenna assembly may also include a cylindrical antenna body extending from the base of the conical antenna body, and a choke assembly including a choke shaft having a proximal end coupled to the conical antenna body and a distal end opposite the proximal end. The choke assembly may include at least one choke member carried by the distal end of the choke shaft in longitudinally spaced relation from an opposing end of the cylindrical antenna body to define at least one choke slot. Each of the first and second conical antenna bodies may be aligned along a common longitudinal axis with respective apexes in opposing relation to define a symmetrical biconical dipole antenna.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 20, 2012
    Assignee: Harris Corporation
    Inventors: Russell W. Libonati, Larry Goldstein, Francis Parsche
  • Patent number: 8264417
    Abstract: An antenna structure and a method of propagating an electromagnetic (EM) wave with the antenna structure. The antenna structure comprises a first aperture antenna element and a second element inside the first element adapted to strengthen the directivity of the wave.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: September 11, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jeffrey M. Snow, Thomas Ball
  • Publication number: 20120188137
    Abstract: A broadband antenna system is disclosed. The antenna system relates to a cylindrical structure, wherein the feed region comprises segmented radiators with tapered feed points, distributed around the circumference of the structure, and a balun that is co-planar with the cylindrical structure. This allows a plurality of feed lines, cables, piping, or other structures to be run through the center of the antenna without interfering with the performance of the antenna system. Segmentation of the radiators permits the integration of a corporate feed network, suppresses overmoding and permits operation without the need for a ground plane. The invention further relates to a stacked broadband antenna system wherein additional antenna elements or devices may be stacked collinearly on the antenna structure and operated via the plurality of feed lines or other structures. The overall system thus provides a wide range of transmitting, receiving, sensing and other capabilities over a virtually infinite bandwidth.
    Type: Application
    Filed: January 27, 2012
    Publication date: July 26, 2012
    Inventor: FARZIN LALEZARI
  • Publication number: 20120176286
    Abstract: A bicone antenna, having: a tapered top cone; a tapered bottom cone; a laterally extending ground plate beneath the tapered bottom cone; at least one shorting pin connecting the tapered top cone and the tapered bottom cone; a central pin connected to the tapered top cone; a coaxial feed connected to central pin and the laterally extending ground plate; and a dielectric disposed between the tapered top cone and the tapered bottom cone.
    Type: Application
    Filed: April 2, 2008
    Publication date: July 12, 2012
    Applicant: South Dakota School of Mines and Technology
    Inventors: Anthony K. Amert, Keith W. Whites