Patents Examined by HoangAnh T. Le
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Patent number: 7414593Abstract: A three-dimensional FSS fabrication system is described. FSS elements are pre-mapped in two-dimensional form and constructed on a flat FSS panel that is then formed into a desired three-dimensional shape. The 2-D flat surface of the designed FSS is mapped into a desired three-dimensional curvature so that when formed from 2-D into the 3-D shape, the FSS elements are moved into a desired position and/or orientation. In one embodiment, the mapping from 2-D to 3-D is performed using the elastic properties of a desired substrate material. In one embodiment, one or more flat FSS panels are constructed on a formable or thermo-formable substrate. In one embodiment, the substrate includes a thermoplastic. In one embodiment, the substrate includes a thermoplastic material with fiber reinforcement. The FSS elements can be created by printing, deposition, photo-etching, etc. The flat FSS layers are thermoformed or chemically formed over a tool having the desired shape.Type: GrantFiled: February 24, 2006Date of Patent: August 19, 2008Assignee: Alliant Techsystems Inc.Inventors: Victor G. Williams, Andrew B. MacFarland, Ethan C. Saladin, Jay C. Marcum
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Patent number: 7408520Abstract: The slot-mode antenna includes an array of slot antenna units carried by a substrate, and each slot antenna unit has a pair of patch antenna elements arranged in laterally spaced apart relation about at least one central feed position. Adjacent patch antenna elements of adjacent slot-mode antenna units include respective spaced apart edge portions defining gaps therebetween, and a capacitive coupling layer or plates overlap the respective spaced apart edge portions to provide increased capacitive coupling therebetween. The capacitive coupling layer may include continuous or periodic capacitive coupling plates along each gap defined by the respective spaced apart edge portions.Type: GrantFiled: December 16, 2005Date of Patent: August 5, 2008Assignee: Harris CorporationInventors: Timothy E. Durham, Anthony M. Jones, Sean C. Ortiz, Chris Synder, Griffin K. Gothard
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Patent number: 7408514Abstract: A speaker of a portable terminal having a resonance space defined in the portable terminal such that the sound can advance in multiple directions through the resonance space, thereby enabling a user of the terminal to hear a large volume of high quality sound. The speaker includes an internal antenna module disposed at an upper inner portion of the body of the portable terminal and defining a resonance space, and a speaker module integrally assembled with the internal antenna module and disposed under the resonance space formed under the main PCB. Sound generated by the speaker module advances in multiple directions after passing through the resonance space regardless of whether the folder is opened or closed.Type: GrantFiled: May 2, 2005Date of Patent: August 5, 2008Assignee: Samsung Electronics Co., LtdInventor: Sung-Soo Go
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Patent number: 7408519Abstract: The dual-polarization antenna with a slot pattern can produce vertical polarized energy near the horizon and can scan to near grazing angles. The dual-polarization, slot-mode antenna includes an array of dual-polarization, slot-mode, antenna units carried by a substrate, and each dual-polarization, slot-mode antenna unit having at least four patch antenna elements arranged in spaced apart relation about a central feed position. Adjacent patch antenna elements of adjacent dual-polarization, slot-mode antenna units have respective spaced apart edge portions defining gaps therebetween. Capacitive coupling plates are adjacent the gaps and overlap the respective spaced apart edge portions to provide increased capacitive coupling therebetween.Type: GrantFiled: December 16, 2005Date of Patent: August 5, 2008Assignee: Harris CorporationInventors: Timothy E. Durham, Anthony M. Jones, Griffin K. Gothard, Sean Ortiz
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Patent number: 7405698Abstract: Circuit modules and methods of construction thereof that contain composite meta-material dielectric bodies that have high effective values of real permittivity but which minimize reflective losses, through the use of host dielectric (organic or ceramic), materials having relative permittivities substantially less than ceramic dielectric inclusions embedded therein. The composite meta-material bodies permit reductions in physical lengths of electrically conducting elements such as antenna element(s) without adversely impacting radiation efficiency. The meta-material structure may additionally provide frequency band filtering functions that would normally be provided by other components typically found in an RF front-end.Type: GrantFiled: October 3, 2005Date of Patent: July 29, 2008Inventor: L. Pierre de Rochemont
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Patent number: 7405705Abstract: A wideband antenna has: a rectangular conductor sheet; a bow-tie-shaped slit formed in the rectangular conductor sheet, the rectangular conductor sheet having two apex portions defined by the bow-tie-shaped slit, the two apex portions being opposite to each other in the middle of the bow-tie-shaped slit; an auxiliary antenna element formed to extend along the bow-tie-shaped slit on both sides of one of the two apex portions; a power-feeding portion formed at the one of the two apex portions; and a grounding portion formed at an other of the two apex portions.Type: GrantFiled: June 22, 2007Date of Patent: July 29, 2008Assignee: Hitachi Cable, Ltd.Inventor: Keisuke Fukuchi
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Patent number: 7405708Abstract: An antenna comprises: a main reflector being a body of revolution of arbitrary curve which axis diverges from axis of the revolution; a sub-reflector being a body of the revolution of arbitrary curve along the axis of revolution, having a circle and a vertex pointing to the main reflector and being placed between the circle and the main reflector; a radiator being located along the axis of revolution and being placed between the main reflector and the sub-reflector; and wherein the main reflector and the sub-reflector are: z m ? ( r , D ) = ? n = 0 4 ? ? m = 0 6 ? qm n , m ? D m - n + 1 ? r n , ? z s ? ( r , D ) = ? n = 0 4 ? ? m = 0 6 ? qs n , m ? D m - n + 1 ? r n , z, r are coordinates of the main reflector and the sub-reflector measured in millimeters, Index m corresponds to the main reflector, index s to the sub-reflector D is the main reflector diameter measured in millimeters.Type: GrantFiled: November 14, 2006Date of Patent: July 29, 2008Inventors: Jiho Ahn, Sergey Bankov, Alexander Davydov
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Patent number: 7403167Abstract: An antenna configuration is provided for radio reception in motor vehicles, the roof region of which is made predominantly of dielectric materials, and for motor vehicles having roof structures that can be collapsed for open driving operation. The antenna configuration includes a combination of emitters that are integrated into elements of the roof region, with emitters that are disposed in cavities of the interior paneling essentially below the belt line of the vehicle. A ground connection is provided for emitters that are disposed in a roof structure having movable elements by way of at least one resilient contact between movable metal components of the roof structure and the metal car body. Also included is a switching system for alternating operation of the emitters.Type: GrantFiled: May 19, 2006Date of Patent: July 22, 2008Assignees: Delphi Delco Electronics Europe GmbH, Bayerische Motoren Werke AGInventors: Wilhelm Probst, Jürgen Sczesny, Detlef Wunnenberg, Laila Bekraoui
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Patent number: 7400299Abstract: A microstrip antenna configured to wrap around a projectile's body without interfering with the aerodynamic design of the projectile. The microstrip antenna has three identical conformal antenna elements equally spaced around the circumference of the projectile's body. The antenna has an operating frequency of 241.2 MHz or 231.0 MHz, a maximum diameter of ten inches and a maximum length of nine inches.Type: GrantFiled: September 21, 2006Date of Patent: July 15, 2008Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 7397432Abstract: A built-in antenna module for a portable wireless terminal is provided. In the built-in antenna module, a mainboard, which is an RF board, has a feeding unit and a grounding unit. A radiator is disposed on one side of the mainboard and has a feed pin and a ground pin that are electrically connected to the feeding unit and the grounding unit, respectively. A conductive ground plate is disposed on the other side of the mainboard to have a predetermined height. An end of the conductive ground plate is grounded to the grounding unit of the mainboard. The distance between the radiator and the ground plate is maximized to improve antenna performance.Type: GrantFiled: September 15, 2005Date of Patent: July 8, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Do-Il Ku, Chin-Sop Choe
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Patent number: 7394433Abstract: An antenna system comprises first, second, and third antennas that are arranged on a printed circuit board (PCB) and that include an arc-shaped element having a concave side and a convex side. A conducting element extends substantially radially from a center of the concave side. A U-shaped element has a base portion with a center that communicates with the conducting element and two side portions that extend from ends of the base portion towards the concave side.Type: GrantFiled: October 16, 2006Date of Patent: July 1, 2008Assignee: Marvell World Trade Ltd.Inventors: James Li, Jing Jiang
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Patent number: 7385555Abstract: An antenna assembly includes a conducting ground plane, a single dielectric substrate layer or a plurality of dielectric substrate layers each with different dielectric constants mounted to the conducting ground plane. A central patch element is mounted to the dielectric substrate layer or layers and configured to radiate within a first frequency band. A plurality of probes (i) extend through the conducting ground plane and the dielectric substrate and (ii) are physically connected to the central patch element. A parasitic ring is disposed around the central patch element and reactively coupled thereto. The parasitic ring is configured to radiate within a second frequency band.Type: GrantFiled: November 12, 2004Date of Patent: June 10, 2008Assignee: The Mitre CorporationInventors: Mohamed S. Mahmoud, Edward N. Rosario, Basrur R. Rao
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Patent number: 7151506Abstract: The present invention relates generally to reconfigurable, solid-state matrix arrays comprising multiple rows and columns of reconfigurable secondary mechanisms that are independently tuned. Specifically, the invention relates to reconfigurable devices comprising multiple, solid-state mechanisms characterized by at least one voltage-varied parameter disposed within a flexible, multi-laminate film, which are suitable for use as magnetic conductors, ground surfaces, antennas, varactors, ferrotunable substrates, or other active or passive electronic mechanisms.Type: GrantFiled: April 12, 2004Date of Patent: December 19, 2006Assignee: QorTek, Inc.Inventors: Gareth Knowles, Eli Hughes
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Patent number: 6873295Abstract: A radio antenna formed on a window pane includes parallel heating elements extending between busbars at opposite edges of the pane. Plural interconnecting elements extend across the heating elements. The length from the midpoint of a busbar to the point of connection of the interconnecting element, measured along the busbar and then along the heating element, is approximately ?/4+N(?/2), where n is an integer greater than or equal to zero, and ? is a select wavelength from the band of signals to be received.Type: GrantFiled: January 14, 2003Date of Patent: March 29, 2005Assignee: BSH Industries LimitedInventor: John Davies
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Patent number: 6104356Abstract: The diversity antenna circuit comprises a first antenna for receiving a vertical plane of polarization of an electric wave, a second antenna for receiving a horizontal plane of polarization thereof, a receiving means for detecting the electric field strength of a received signal, a first matching means for matching the first antenna to the receiving means, a second matching means for matching the second antenna to the receiving means, a first transfer means, a second transfer means, a first switching means, a second switching means, and a switching control means for connecting one of the first and second antennas to the receiving means and separating another one from the receiving means according to ON/OFF control of the first and second switching means based on received electric field strength.Type: GrantFiled: August 26, 1996Date of Patent: August 15, 2000Assignee: Uniden CorporationInventors: Hideo Hikuma, Toshiaki Yuasa
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Patent number: 6028558Abstract: An antenna is disclosed that has windings that are contrawound in segments on a toroid form and that have opposed currents on selected segments. An antenna is disclosed that has one or more insulated conductor circuits with windings that are contrawound around and over a multiply connected surface, such as a toroidal surface. The insulated conductor circuits may form one or more endless conductive paths around and over the multiply connected surface. The windings may have a helical pattern, poloidal peripheral pattern or may be constructed from a slotted conductor on the toroid. Poloidal loop winds are disclosed with a toroid hub on a toroid that has two plates that provides a capacitive feed to the loops, which are selectively connected to one of the plates. Associated methods are also disclosed.Type: GrantFiled: June 7, 1995Date of Patent: February 22, 2000Inventor: Kurt L. Van Voorhies
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Patent number: 5929816Abstract: The antenna mount is for use in mounting a GPS antenna and a differential antenna on an aircraft. The antenna mount is fixed externally of the aircraft on an outer surface of a curved rear wall of the cockpit canopy. The antenna mount comprises a shell having a top wall for mounting at least one antenna, a front wall, side walls of substantially equal length, and a rear wall. The antenna mount is sized such that electronics required by the antenna may be placed such that they are enclosed therein. The mounting bolts are provided for fixing the antenna mount to the outer surface of the rear wall of the cockpit canopy.Type: GrantFiled: October 15, 1996Date of Patent: July 27, 1999Inventors: Terry R. Gross, Brett Barber
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Patent number: 5923299Abstract: A biconical antenna having fully adjustable design parameters. The biconical antenna has a coaxial feed having outer and inner conductors. A lower support structure secures a lower cone to the outer conductor. An upper support structure secures an upper cone to the inner conductor. A dielectric window support is disposed between the lower and upper support structures. To make the antenna relatively lightweight, each cone may be made of sheet metal plates that are connected to the lower and upper cone support structures. A reservoir is formed within the upper cone. Dielectric material, such as oil, is disposed within the antenna. Air bubble escape holes are disposed in the upper support structure so that air bubbles that are formed at the coaxial feed can escape to the reservoir. The holes do not allow electromagnetic power leakage between the coaxial feed and the reservoir, and the position of the holes is such that the air bubbles rise from the coaxial feed into the reservoir.Type: GrantFiled: December 19, 1996Date of Patent: July 13, 1999Assignee: Raytheon CompanyInventors: Ken Brown, David Crouch, Pat Kratovil
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Patent number: 5917458Abstract: A frequency selective surface integrated antenna is provided which compri a frequency selective surface, including an electrically non-conductive substrate and an electrically conductive layer, mounted to the substrate and having a pattern of apertures; and an antenna integrated in the frequency selective surface.Type: GrantFiled: September 8, 1995Date of Patent: June 29, 1999Assignee: The United States of America as represented by the Secretary of the NavyInventors: Thinh Q. Ho, James C. Logan, John W. Rockway
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Patent number: 5907305Abstract: An aperture coupled patch splits energy from two different polarization components to different locations to spread heat. In addition, there is no physical electrical connection between the slot, patch and circuitry. The circuitry is located under a ground plane which shields against harmonic radiation back to the RF source.Type: GrantFiled: November 24, 1997Date of Patent: May 25, 1999Assignee: California Institute of TechnologyInventors: Larry W. Epp, Abdur R. Khan, R. Peter Smith, Hugh K. Smith