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| Number | Title | Issue Date |
| 8149178 | Millimeter-wave communication system with directional antenna and one or more millimeter-wave reflectors Embodiments of millimeter-wave communication systems and methods for communicating using millimeter-waves are described. In some embodiments, a directional antenna (102) may direct millimeter-wave signals substantially in a horizontal plane (115), and ... | 04/03/2012 |
| 8149179 | Low loss variable phase reflect array using dual resonance phase-shifting element There is disclosed a reflect array including a dielectric substrate having a first surface and a second surface. The first surface may support an array of phase-shifting elements. The second surface may support a conductive layer. At least some of the phase-shifting... | 04/03/2012 |
| 8102328 | Method and device for the transmission of waves Method for focusing an electromagnetic or acoustic wave on a point near which one or more diffusers are placed, comprising a learning step in which the pulsed responses hij(t) between the focus point and each antenna of the network are determined. Waves c... | 01/24/2012 |
| 7800551 | Passive parabolic antenna, wireless communication system and method of boosting signal strength of a subscriber module antenna The invention is a passive parabolic antenna system for use with conventional subscriber module radio antennas. The passive parabolic antenna system includes a microwave feed assembly that forms a resonant cavity coupling device for coupling to an internal patch ant... | 09/21/2010 |
| 7649504 | Backfire antenna with upwardly oriented dipole assembly In one embodiment, a backfire antenna comprises a cup-shaped member defining an outer aperture and an interior cavity, a splash-plate disposed within a plane, and a dipole assembly comprising first and second arms. The first and second arms are both oriented non-par... | 01/19/2010 |
| 7443355 | Antenna feed-tube-to-amplifier coupling A first set of screws secures a Cassegrain-configuration microwave antenna's primary reflector to its low-noise block down-converter without additionally securing that reflector or the low-noise block down-converter to the antenna's feed tube, which a second set of ... | 10/28/2008 |
| 7394440 | Three-dimensional antenna fabrication from multiple two-dimensional structures A method for making an antenna array includes forming a ground plane having spaced apart openings extending therethrough, and forming a first antenna board having a support section and spaced apart first legs extending outwardly from the support section. An antenna ... | 07/01/2008 |
| 7276990 | Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same A switch arrangement comprises a plurality of MEMS switches arranged on a substrate about, and close to, a central point, each MEMS switch being disposed on a common imaginary circle centered on the central point. Additionally, and each MEMS switch is preferably spa... | 10/02/2007 |
| 7253699 | RF MEMS switch with integrated impedance matching structure An impedance matching structure for a RF MEMS switch having at least one closeable RF contact in an RF line, the impedance matching structure comprising a protuberance in the RF line immediately adjacent the RF contact that forms one element of a capacitor, the othe... | 08/07/2007 |
| 7245269 | Adaptive beam forming antenna system using a tunable impedance surface A method of and apparatus for beam steering. A feed horn is arranged so that the feed horn illuminates a tunable impedance surface comprising a plurality of individually tunable resonator cells, each resonator element having a reactance tunable by a tuning element a... | 07/17/2007 |
| 7218288 | Antenna that uses four metal conductors An antenna comprising a rectangular reflector; first and second dipole antennae disposed in front of the reflector and aligned parallel to the long edge of the reflector; rod-shaped first metal conductors arranged parallel to the first and second dipole antennae and... | 05/15/2007 |
| 7205953 | Directional antenna array A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of a... | 04/17/2007 |
| 7187341 | Antenna apparatus having a reflector The present invention discloses an antenna apparatus comprising a reflector including a V-like structure (from the cross-sectional view) with an angle. A radiation unit (antenna) is set within the V-like structure. The angle is about 120 degree. The V-like structure... | 03/06/2007 |
| 7177236 | Optical disc head including a bowtie grating antenna and slider for optical focusing, and method for making A slider system have been developed to aid in the spacing between read/write heads and the storage medium, and a grating antenna amplifier has been developed to improve illumination spot size and polarization characteristics. The grating antenna can be attached to a... | 02/13/2007 |
| 7164387 | Compact tunable antenna The present disclosure relates to a method and an antenna for transmitting/receiving a RF signal at a plurality of different frequencies. Transmitting/receiving a RF signal at a plurality of different frequencies is achieved by providing a F antenna comprising a plu... | 01/16/2007 |
| 7154451 | Large aperture rectenna based on planar lens structures A rectenna structure comprising a flexible, dielectric sheet of material; a plurality of metallic lenslets disposed on the sheet of material; and a plurality of diodes disposed on the sheet of material, each diode in said plurality of diodes being arranged at a focu... | 12/26/2006 |
| 7106254 | Single-mode antenna assembly The invention provides for a planar antenna assembly supported on a substrate. The antenna includes a monopole element, at least one grounded parasitic element located proximate the monopole element, wherein each grounded parasitic element is grounded to a planar gr... | 09/12/2006 |
| 7095371 | Antenna assembly An antenna assembly is designed to operate over a wide band from around 880 MHz to around 2,500 MHz by means of a monopole antenna element designed to operate from around 880 MHz to around 2,500 MHz typically from the GSM bands to the Bluetooth or IEEE 802.11b band.... | 08/22/2006 |
| 7088306 | High gain antenna for wireless applications An antenna includes a ground plane and an active antenna element adjacent the ground plane. Passive antenna elements are adjacent the ground plane, and are spaced apart from the active antenna element. First parasitic gratings are adjacent the ground plane and are s... | 08/08/2006 |
| 7071888 | Steerable leaky wave antenna capable of both forward and backward radiation Leaky wave antenna beam steering that is capable of steering in a backward direction, as well as further down toward the horizon in the forward direction than was previously possible, and also directly toward zenith. The disclosed antenna and method involve applying... | 07/04/2006 |
| 7068234 | Meta-element antenna and array An antenna having at least one main element and a plurality of parasitic elements. At least some of the elements have coupling elements or devices associated with them, the coupling elements or devices being tunable to thereby control the degree of coupling between ... | 06/27/2006 |
| 7031652 | Wireless local loop antenna A wireless local loop system is provided that includes a wireless base station that communicates with a subscriber station via a wireless link. The wireless link can carry a voice service, such as telephone calls, or a data service, such as internet browsing. The su... | 04/18/2006 |
| 7030830 | Dual-access monopole antenna assembly The invention provides a dual-access antenna fabricated on a substrate. In one embodiment, the antenna includes a first monopole element, at least one grounded parasitic element located proximate the first monopole element, wherein the separation between the monopol... | 04/18/2006 |
| 7019703 | Antenna with Rotatable Reflector A directional antenna formed by associating a stationary generally omni-directional antenna element with an RF reflector formed from, for example, a folded, parabolic or elliptical RF reflecting surface. Rotating the RF reflector about the stationary antenna element... | 03/28/2006 |
| 7009559 | Method and apparatus for adapting antenna array using received predetermined signal A mobile subscriber unit includes a smart antenna having antenna elements for generating a plurality of antenna beams, and adjustable weight control components connected to the antenna elements for selecting any one of the antenna beam. A transceiver is connected to... | 03/07/2006 |
| 6989797 | Adaptive antenna for use in wireless communication systems An antenna apparatus, which can increase capacity in a cellular communication system or Wireless Local Area Network (WLAN), such as an 802.11 network, operates in conjunction with a mobile subscriber unit or client station. At least one antenna element is active and... | 01/24/2006 |
| 6977622 | Shaped-reflector multibeam antennas A method, an apparatus, and a computer program product for electromagnetically designing a shaped-reflector multibeam antenna (100) are disclosed. An initial configuration of the multibeam antenna (100) for given beam directions is provided of reflecto... | 12/20/2005 |
| 6972729 | Broadband/multi-band circular array antenna A broadband/multiband circular array antenna is disclosed. One embodiment comprises a circular directional array antenna comprising a driven omnidirectional traveling-wave antenna element coupled to a transceiver via a feed and a plurality of surface-waveguide eleme... | 12/06/2005 |
| 6933900 | Sector antenna apparatus and vehicle-mounted transmission and reception apparatus A sector antenna apparatus mounted on a vehicle has a casing, in which six horn antennas having apertures over an angular range of 180 degrees and extending radially are accommodated. The proximal ends of the horn antennas are connected to an antenna changeover swit... | 08/23/2005 |
| 6914571 | Device for measuring characteristics of an electromagnetic field, particularly for the radiation diagram of an antenna The present invention relates to a device for measuring characteristics of an electromagnetic field emitted by a source being tested, comprising a radiating element (8), a support (6) for said radiating element and a mount (5) on which said supp... | 07/05/2005 |
| 6909400 | Allround aerial arrangement for receiving terrestrial and satellite signals An improved combination antenna for receiving terrestrial, in particular vertically polarized signals, and for receiving in particular circular polarized satellite signals in accordance with the SDARS services, preferably in a 2.3 GHz band, having the following feat... | 06/21/2005 |
| 6745057 | Portable telephone The portable telephone includes an antenna and a metallic cabinet operating as main radiation sources of electromagnetic waves, a feeding point for supplying said antenna and said metallic cabinet with electric power, an outer packaging formed of such a material as ... | 06/01/2004 |
| 6697028 | Multi-band ring focus dual reflector antenna system A ring focus antenna and method of using same. The ring focus antenna can have a main reflector of revolution shaped as a non-regular paraboloid about a boresight axis of the antenna. A sub-reflector/feed pair is provided comprising a sub-reflector of rev... | 02/24/2004 |
| 6677908 | Multimedia aircraft antenna An antenna system consisting of parabolic rectangular reflectors disposed contiguously in a linear array. The use of parabolic rectangular reflectors permits the reflectors to form a larger common rectangular aperture without gaps in illumination. The con... | 01/13/2004 |
| 6515635 | Adaptive antenna for use in wireless communication systems A directive antenna includes plural antenna elements in an antenna assemblage. A feed network connected to the antenna elements includes at least one switch to select a state of one of the antenna elements to be in an active state in response to a control... | 02/04/2003 |
| 6337668 | Antenna apparatus The antenna apparatus of the present invention places antenna element 302 that transmits or receives electromagnetic waves on basic plate 301, places parasitic antenna elements 303 to 306 on basic plate 301 evenly spaced concentrically centered on antenna... | 01/08/2002 |
| 6295034 | Common aperture reflector antenna with improved feed design A common aperture reflector antenna and feed are provided for use in common aperture sensor systems. The feed includes an array of individual elements. The array elements are configured to increase the overall efficiency of a reflector antenna by flatteni... | 09/25/2001 |
| 6211834 | Multiband ring focus antenna employing shaped-geometry main reflector and diverse-geometry shaped subreflector-feeds A multiband, shaped ring focus antenna architecture employs only a single or common main reflector, that is shaped such that it can be shared by each of a pair of interchangeable, diversely shaped close proximity-coupled, subreflector-feed pairs designed ... | 04/03/2001 |
| 6211813 | Compact monopulse source for a focal feed reflector antenna A monopulse source for a focal feed antenna including at least two waveguides machined in a metal flange supporting a microwave transmission and reception circuit of the antenna, and a dielectric substrate on the metal flange. Also included is a microwave... | 04/03/2001 |
| 6121938 | Antenna having improved blockage fill-in characteristics An apparatus for limiting shadowing of RF coverage areas around antennas and closely associated equipment housings is disclosed. The equipment housing and antenna are located in close proximately such that the RF coverage area of the antenna is partially ... | 09/19/2000 |
