A collection of 12 patents along with abstracts and diagrams where applicable. Also listed are inventors, assignees, and dates filed. Covers some of t... Patents - Intellectual property - Helical antennas - Horn antennas - Antenna theory - Abstracts - Polarization - Patch antennas - Antenna arrays - Coaxial cables
Lee W. Henderson Knobbe, Martens, Olson & Bear, LLP 620 Newport Center Drive Newport Beach, CA 92660 USA Tel: +1 (949) 721-6305 Fax: +1 (949)760-9502 E-mail: [email protected]
US 7,460,071 B2 TRIPLE POLARIZED PATCH ANTENNA Lars Manholm, Gothenburg (Sweden); and Fredrik Harrysson, Gothenburg (Sweden) Assigned to Telefonaktiebolaget L M Ericsson (PUBL), Stockholm (Sweden) AppI. No. 11/722,913 PCT Filed Dec. 27, 2004, PCT No. PCT/SE2004/002013 § 371(c)(1), (2), (4) Date Jun. 27, 2007, PCT Pub. No. W02006/071141, PCT Pub. Date Jul. 06,2006. Prior Publication US 2008/0100530 AI, May 01, 2008 Int. CI. H01Q 1/38 (2006.01) U.S. CI. 343-700MS [343/853] 10 Claims
wherein each feeding line is connected to the first antenna patch at feeding points angularly offset by 90 degrees from adjacent feeding points, wherein the first and second feeding points are offset by 180 degrees and the third and fourth feeding points are offset by 180 degrees such that the clockwise order of the succeeding feeding points is the first, the third, the second, and the fourth; wherein when all of the feeding lines are fed essentially in phase, a first constant E-field is generated in a slot between the edges of the first and second antenna patches; wherein when the first and second feeding lines are fed 180 degrees out of phase with each other, a second, sinusoidally varying E-field is generated in the slot between the edges of the first and second antenna patches; and wherein when the third and fourth feeding lines are fed 180 degrees out of phase with each other, a third, sinusoidally varying E-field is generated in the slot between the edges of the first and second antenna patches, said third sinusoidally varying E-field being rotated 90 degrees with respect to the second sinusoidally varying E-field.
US 7,460,072 HI MINIATURE PATCH ANTENNA WITH INCREASED GAIN Haim Goldberger, Modi'in (Israel) Assigned to Origin GPS Ltd., Jerusalem (Israel) Filed on Jul. 05,2007, as AppI. No. 11/773,448. Int. CI. H01Q 1/38 (2006.01) U.S. CI. 343-700MS [343/829] 18 Claims
1. An antenna arrangement comprising: first and second planar parallel antenna patches; and
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a feeding mechanism comprising first, second, third, and fourth feeding lines for electrically feeding the first antenna patch, 176
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IEEE Antennas and Propagation Magazine, Vol. 51, No.1, February 2009
1. A method of creating a dielectric material with a specific dielectric constant and a reduced dissipation factor, comprising: selecting two or more dielectric materials to be used instead of a single dielectric material with the specific dielectric constant, wherein at least one of the dielectric materials has a dielectric constant lower than the specific dielectric constant and at least one of the dielectric materials has a dielectric constant greater than the specific dielectric constant; calculating a height for each of the dielectric materials so that if placed one on top of another instead of using the single dielectric material the effective dielectric constant is equal to the dielectric constant of the single dielectric material; calculating the effective dissipation factor resulting from the selected dielectric materials and calculated heights; wherein at least one of the selected dielectric materials has a dissipation factor lower than the dissipation factor of the single dielectric material; and the other selected dielectric materials have a dissipation factor such that the calculated effective dissipation factor is less than the dissipation factor of the single dielectric constant.
US 7,460,077 B2 POLARIZATION CONTROL SYSTEM AND METHOD FOR AN ANTENNA ARRAY Christian O. Hemmi, Plano, Tex. (US); and James S. Mason, Richardson, Tex. (US) Assigned to Raytheon Company, Waltham, Mass. (US) Filed on Dec. 21, 2006, as AppI. No. 11/614,761. Prior Publication US 2008/0150799 AI, Jun. 26, 2008 Int. CI. H01Q 21/00 (2006.01) U.S. CI. 343-725 [343/754; 343/770; 343/853] 23 Claims
a plurality of second antenna elements comprising monopole antenna elements having a generally vertical direction of polarization, the horizontal direction of polarization being substantially orthogonal to the vertical direction of polarization, the plurality of first and second antenna elements are contiguously arranged in a generally planar fashion, the first and second antenna elements having a predetermined amplitude weighting factor that tapers from a central region to an outer perimeter of the plurality of first and second antenna elements; and a beam forming network coupled to the plurality of first and second antenna elements and operable to: attenuate only an amplitude of a first subset of the plurality of first antenna elements, wherein the amplitude is either off or on; and shift a phase of a second subset of the plurality of second antenna elements.
US 7,463,201 B2 APERIODIC ARRAY ANTENNA Bing Chiang, Melbourne, Fla. (US); Griffin K. Gothard, Satellite Beach, Fla. (US); Christopher A. Snyder, Melbourne, Fla. (US); William R. Palmer, Melbourne, Fla. (US); Michael J. Lynch, Merritt Island, Fla. (US); Thomas E. Gorsuch, Indialantic, Fla. (US); Kenneth M. Gainey, Satellite Beach, Fla. (US); and James A. Proctor, Melbourne Beach, Fla. (US) Assigned to InterDigital Corporation, Wilmington, Del. (US) Filed on Feb. 13, 2007, as AppI. No. 11/706,544. Application 11/706544 is a continuation of application No. 11/102984, filed on Apr. 11,2005, granted, now 7,176,844. Application 11/102984 is a continuation of application No. 10/357276, filed on Jan. 31, 2003, granted, now 6,888,504. Claims priority of provisional application 60/419431, filed on Oct. 17,2002. Claims priority of provisional application 60/353249, filed on Feb. 01,2002. Prior Publication US 2007/0152893 AI, Jul. 05,2007 Int. CI. H01Q 1/24 (2006.01) U.S. CI. 343-702 [343/833; 343/834] 3 Claims
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1. A polarization control system for an antenna array comprising: a plurality of first antenna elements comprising flared notch antenna elements having a generally horizontal direction of polarization; IEEE Antennas and Propagation Magazine, Vol. 51, No.1, February 2009
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1. A wireless handset comprising an antenna array, the antenna array comprising: an active antenna element disposed on a first side of a circuit board, 177
two passive antenna elements disposed on a second side of a circuit board; im~edance components,
coupled to the passive antenna elements, dIsposed on the second side of the circuit board;
a transceiver, couple to the impedance elements, disposed on the second side of the circuit board; resonant shapes, coupled to the passive elements, disposed on the second side of the circuit board; a first ground structure, coupled to the active antenna elements ' disposed on the first side; and
US 7,463,207 Bl HIGH-EFFICIENCY HORNS FOR AN ANTENNA SYSTEM Sudhakar Rao, Churchville, Pa. (US); and Mihn Tang, Yardley, Pa. (US) Assigned to Lockheed Martin Corporation, Bethesda, Md. (US) Filed on Nov. 08,2006, as Appl. No. 11/594,157. Application 11/594157 is a continuation in part of application No. 11/029390, filed on Jan. 06, 2005, abandoned. Claims priority of provisional application 60/622785, filed on Oct. 29,2004. Int. CI. HOIQ 13/00 (2006.01) U.S. CI. 343-786 [343/783; 343/779] 26 Claims
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a second ground structure, couple to the first ground structure, disposed on the second side; wherein a thickness of the circuit board provides a differential in a planar location of the passive elements with respect to the active element.
US 7,460,084 B2 RADIO FREQUENCY HOLOGRAPHIC TRANSFORMER Eric L. Upton, Bellevue, Wash. (US) Assigned to Northrop Grumman Corporation, Los Angeles, Calif. (US) Filed on Oct. 19, 2005, as Appl. No. 11/255,607. Prior Publication US 2007/0103381 AI, May 10,2007 Int. CI. HOIQ 15/02 (2006.01) U.S. Cl. 343-909 10 Claims
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DU.MEfER) 1. A multiple-beam antenna system, comprising: at least one reflector, a cluster of horns for feeding the at least one reflector, 8. A three-dimensional radio-frequency (RF) holographic transfonner, comprising: an array of elemental RF diffraction gratings, each of which comprises selected lengths of electrically conductive material and electrically insulating material arranged in a selected alternating sequence; and an array of electronically controllable switches configured to vary the lengths of electrically conductive material and electrically insulating material contained in each of the elemental RF diffraction gratings in order to achieve a desired diffraction on one or more RF beams incident on the array of elemental RF diffraction gratings.
a hom of the cluster of horns configured for providing transmission and reception of signals over respective transmission and reception frequency bands, the hom including a substantially conical wall having an internal surface with a variable slope, the internal surface of the substantially conical wall including a plurality of slope discontinuities, at least one of the plurality of slope discontinuities having a diameter greater than 1.7 times the wavelength of the lowest frequency of the transmission frequency band, the diameter being greater than 1.7 times the wavelength of the highest frequency of the transmission frequency band, the diameter being greater than 1.7 times the wavelength of the lowest frequency of the reception frequency band, and the diameter being greater than 1.7 times the wavelength of the highest frequency of the reception frequency band to generate one or more higher order modes of a transverse electric (TE) mode over the transmission and reception frequency bands without generating a transverse magnetic (TM) mode. IEEE Antennas and Propagation Magazine, Vol. 51, No.1, February 2009
US 7,463,210 B2 PHASED ARRAY ANTENNA FORMED AS COUPLED DIPOLE ARRAY SEGMENTS James J. Rawnick, Palm Bay, Fla. (US); and Christopher Trent, Palm Bay, Fla. (US) Assigned to Harris Corporation, Melbourne, Fla. (US) Filed on Apr. 05,2007, as Appl. No. 11/696,933. Prior Publication US 2008/0246680 AI, Oct. 09, 2008 Int. CI. H01Q 9/28 (2006.01); H01Q 21/26 (2006.01) U.S. CI. 343-795 [343/797] 20 Claims
Claims priority of provisional application 60/859799, filed on Nov. 17,2006. Claims priority of provisional application 60/859667, filed on Nov. 17,2006. Claims priority of provisional application 60/808187, filed on May 24,2006. Prior Publication US 2008/0036664 AI, Feb. 14,2008 Int. CI. H01Q 1/38 (2006.01) U.S. CI. 343-700MS [343/702] 20 Claims 390
1. An antenna comprising: a back panel having a conductive layer provided on a surface thereof; a top panel; a variable dielectric constant material sandwiched between the back panel and the top panel; at least one radiating element provided over the top panel; and, at least one conductive line provided over the top panel and coupled to the at least one radiating element.
1. A phased array antenna, comprising: a substrate that is segmented into a plurality of array tiles; an array of dipole antenna elements formed on the substrate, each dipole antenna element positioned on a respective one of said array tiles, wherein each dipole antenna element comprises a medial feed portion and a pair of legs extending outwardly therefrom, adjacent legs of adjacent dipole antenna elements including respective spaced apart end portions forming a gap between the respective end portions and defined by separate tiles; and
US 7,471,258 B2 COAXIAL CABLE HAVING HIGH RADIATION EFFICIENCY Tsung-Yuan Hsu, Westlake Village, Calif. (US); and Daniel F. Sievenpiper, Santa Monica, Calif. (US) Assigned to HRL Laboratories, LLC, Malibu, Calif. (US) Filed on Apr. 26,2006, as Appl. No. 11/412,575. Prior Publication US 2007/0252777 AI, Nov. 01,2007 Int. CI. H01Q 1/36 (2006.01) U.S. CI. 343-895 [343/798; 174/109] 29 Claims
a capacitor coupler positioned at each respective spaced apart end portion of adjacent legs and bridging a gap for capacitive coupling respective spaced apart end portions of respective adjacent dipole antenna elements together.
US 7,466,269 B2 VARIABLE DIELECTRIC CONSTANT-BASED ANTENNA AND ARRAY Dedi David Haziza, Cupertino, Calif. (US) Assigned to Wavebender, Inc., Santa Clara, Calif. (US) Filed on May 10,2007, as Appl. No. 11/747,148. Application 11/747148 is a continuation of application No. 11/695913, filed on Apr. 03, 2007. Claims priority of provisional application 60/890456, filed on Feb. 16,2007. IEEE Antennas and Propagation Magazine, Vol. 51, No.1, February 2009
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1. Radiating coaxial cable transmission line apparatus having high radiation efficiency, the apparatus comprising: center conductor for carrying electromagnetic waveband signals; surrounding said center conductor, a first insulator for electrically insulating said center conductor; 179
superjacent said first insulator means for boosting bifilar-tomonofilar mode rate conversion of said signals comprising a: first helical outer conductor wound with a first helical pitch around the first insulator and a second helical outer conductor wound with a second helical pitch around said first insulator and proximate said first helical outer conductor; and surrounding said means for boosting bifilar-to-monofilar mode rate conversion, said first insulator, and said center conductor, a second insulator for insulating said apparatus from a local environment,
US 7,474,272 B2 PARASITIC ELEMENT FOR HELICAL ANTENNA Stephane Lamoureux, Mirabel (Canada); David McLaren, Beaconsfield (Canada); Yves Gaudette, St-Lazarre (Canada); Steve Larouche, St-Lazarre (Canada); and Jean Dallaire, Laval (Canada) Assigned to MacDonald, Dettwiler and Associates Corporation, Ste-Anne-De-Bellevue (QC) (Canada) Filed on Jun. 27,2007, as AppI. No. 11/819,337. Claims priority of provisional application 60/816891, filed on Jun. 28,2006.
Prior Publication US 2008/0012787 AI, Jan. 17, 2008 Int. CI. H01Q 1/36 (2006.01) U.S. CI. 343-895 [343/833] 10 Claims
wherein said first helical pitch and said second helical pitch are determined by an equation comprising:
1/PI-l(P2=I/A where: PI is pitch angle for the first helical outer conductor, P2 is pitch angle for the second helical outer conductor, and A is approximate center wavelength for a bandwidth-of-interest.
US 7,477,196 B2 SWITCHED CAPACITIVE PATCH FOR RADIO FREQUENCY ANTENNAS Vijay L. Asrani, Round Lake, III. (US); and Adrian Napoles, Lake Villa, III. (US) Assigned to Motorola, Inc., Schaumburg, Ill. (US) Filed on Dec. 20,2006, as Appl. No. 11/613,354. Prior Publication US 2008/0150808 AI, Jun. 26, 2008 Int. CI. HOIQ 1/38 (2006.01) U.S. CI. 343-700MS 15 Claims 50B
1. An antenna system for receiving and transmitting radio frequency (RF) signals within predetermined RF bands, the antenna system comprising: a ground plane; a multi-resonant antenna element having a feed leg coupled at one portion thereof to the ground plane;
1. A parasitic element for a helical antenna, the antenna including at least one helix conductor extending from a secured first longitudinal end of the antenna to an opposite free second longitudinal end thereof around an antenna major-axis, the parasitic element comprising an electrically conductive ring defining a ring axis and an inner and an outer wall thereof, the ring being adj acent and spaced apart from the second end in a direction leading away from the first end with the ring axis being substantially parallel to and collinear with the antenna major-axis, the ring outer wall having a diameter substantially equal to a diameter of the helix conductor at the second end.
a first capacitive patch; and a first switching device associated with the first capacitive patch and selectably coupling the first capacitive patch to the ground plane for selectably receiving and transmitting RF signals within a first predetermined RF band or a second predetermined RF band, wherein the multi-resonant antenna element comprises a planar antenna element and the portion of the feed leg coupled to the ground plane is a first end of the planar antenna element, and wherein the first capacitive patch is located proximate to a second end opposite the first end, and wherein the first switching device is connected to the first capacitive patch and selectably couples the first capacitive patch to the ground plane.
US 7,482,994 B2 THREE-DIMENSIONAL H-FRACTAL BANDGAP MATERIALS AND ANTENNAS Weijia Wen, Kowloon (Hong Kong Special Administrative Region of the People's Republic of China, The); Ping Sheng, Kowloon (Hong Kong Special Administrative Region of the People's Republic of China, The); and Do Hou, Kowloon (Hong Kong Special Administrative Region of the People's Republic of China, The) Assigned to The Hong Kong University of Science and Technology, Hong Kong SAR (China)
IEEE Antennas and Propagation MagaZine, Vol. 51, No.1, February 2009
Filed on Apr. 05,2006, as Appl. No. 11/398,474. Prior Publication US 2007/0236406 AI, Oct. 11, 2007 Int. CI. HOIQ 15102 (2006.01) U.S. CI. 343-909 [343/700 MS] 22 Claims
1. A three-dimensional (3D) bandgap material comprising a threedimensional fractal structure, tuned to define at least one predetermined transmission bandgap, wherein the fractal structure is formed by subjecting a mother element to a repeated affine transformation through the whole three dimensions, with the rule that each line segment be perpendicular to the plane formed by the two lower-Ievellines.
of Knobbe, Martens, Olson, Lee Henderson is a partner in the & Bear, LLP, at 620 Newport Center Drive, Newport Beach, California. He is admitted to the bars of the state of California and the US District Court for the Central District of California. He is registered to practice before the US Patent and Trademark Office. This article is provided for the sole purpose of presenting general information and does not contain legal advice. Options expressed herein reflect the opinions of the author, and not necessarily those of the author's firm. @)
IEEE Antennas and Propagation Magazine, Vol. 51, No.1, February 2009