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| Number | Title | Issue Date |
| 8102324 | Sub-reflector of a dual-reflector antenna The aim of the present invention is a sub-reflector of a dual-reflector antenna comprising: a first end having a junction of a first diameter, adapted for coupling to the end of a waveguide, a second end, having a ... | 01/24/2012 |
| 7932868 | Reflector array antenna with reconfigurable shape coverage with or without loader A reflector network antenna (A) comprising i) a source (S) delivering wave signals; ii) at least two reflector networks (RR1-RR9) which are different and independent and which both comprise at least two phase shifter cells which selectively phase shift... | 04/26/2011 |
| 7907097 | Self-supporting unitary feed assembly A feed assembly for a reflector antenna having a unitary portion of dielectric material, a proximal end of the unitary portion configured for connection with the reflector antenna. The unitary portion having a waveguide portion extending between the proximal end and... | 03/15/2011 |
| 7898491 | Reflector antenna feed RF seal A reflector antenna feed RF seal between an antenna base, a feed hub and a vertex plate. The RF seal formed via a generally annular gasket of compressible material adapted to seat around an outer diameter of the feed hub. The gasket having an outer diameter greater ... | 03/01/2011 |
| 7786945 | Beam waveguide including Mizuguchi condition reflector sets A beam waveguide may include a first set of dual offset reflectors and a second set of dual offset reflectors. The first set of dual offset reflectors and the second set of dual offset reflectors may each include reflector geometries to produce a radiation pattern t... | 08/31/2010 |
| 7605770 | Flap antenna and communications system A flap antenna may include a radio frequency (RF) feed and a shaped reflector formed in a selected shape to reflect electromagnetic radiation to or from the RF feed. The flap antenna may also include a flap reflector to reflect the electromagnetic radiation to or fr... | 10/20/2009 |
| 7586454 | Method of assembling a radiocommunication antenna, radiocommunication antenna assembled by such a method, and device adapted to implement such an assembly method The present invention relates to a method of assembling a radiocommunication antenna comprising a reflector connected to a subreflector via a circular section waveguide extending along a longitudinal axis. According to the invention, such a method comprises the foll... | 09/08/2009 |
| 7453411 | Antenna device and radar apparatus including the same An antenna device having a primary radiator that includes a transmitting section formed of a cylindrical waveguide extending parallel to a direction in which the front of the antenna device faces (front direction), and a rectangular horn-shaped radiant section exten... | 11/18/2008 |
| 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 |
| 7411561 | Gimbaled dragonian antenna In one embodiment, a gimbaled reflector antenna is provided that includes: a Dragonian antenna having a sub-reflector and a main reflector; a feed; a third reflector adapted to reflect a beam from the feed to the sub reflector; an azimuth gimbal adapted to rotate th... | 08/12/2008 |
| 7408522 | Antenna-feeder device and antenna An antenna comprises: a main reflector being a body of revolution of parabolic shape; a sub-reflector being a body of the revolution of elliptic shape having a circle and a vertex oriented to the main reflector and being placed between the circle and the main reflec... | 08/05/2008 |
| 7394436 | Multi-beam and multi-band antenna system for communication satellites An antenna system includes a reflector having a modified-paraboloid shape; and a multi-beam, multi-band feed array located at a focal point of the reflector so that the antenna system forms a multiple congruent beams that are contiguous. The system has a single refl... | 07/01/2008 |
| 7388559 | Reflector antenna An antenna provided. The antenna includes an outer dish having a first surface and a second surface; an inner dish mounted to the first surface of the outer dish; a helix feed mounted on a ground plane; and a support mounted at an axial center of the inner dish for ... | 06/17/2008 |
| 7369847 | Fixed cell communication system with reduced interference A communication system has a high altitude communication device that has an antenna for directing beams to a fixed cell pattern with a polarity of cells. A specific pattern of cells having the same communication resource is provided. Preferably, cells having the sam... | 05/06/2008 |
| 7345653 | Shaped reflector reoptimization An invention is provided for generating a shaped reflector. The invention includes receiving required performance data that defines a desired RF performance of a shaped reflector. A mathematical model of the shaped reflector is manipulated to generate a new geometry... | 03/18/2008 |
| 7286096 | Aligned duplex antennae with high isolation Integrating dual antennae into a single rigid assembly guarantees parallel alignment between the antennae and provides higher isolation with lower insertion loss than duplexing methods can achieve through a single antenna. The resulting higher performance at lower c... | 10/23/2007 |
| 7280081 | Parabolic reflector and antenna incorporating same A parabolic reflector for an antenna has a plurality of concentric annular sections arranged in series from a first annular section nearest a central axis of the reflector to a last annular section defining an outer perimeter of the reflector. Each section has a par... | 10/09/2007 |
| 7256749 | Compact, mechanically scanned cassegrain antenna system and method A mechanically scanned reflector antenna system that produces a compact swept diameter and overall height, which is ideally suited for use on the external surface of a high speed mobile platform where a low profile, lightweight antenna is needed. The antenna system ... | 08/14/2007 |
| 7245267 | Mobile radio antenna radome with integral reflector An improved radome comprises at least one conductive flat structure integrally incorporated in the material of the radome, which acts as a reflector for a mobile radio antenna at least partially enclosed within the radome. ... | 07/17/2007 |
| 7245265 | Parabolic antenna of a level measuring instrument and level measuring instrument with a parabolic antenna This invention concerns a parabolic antenna with a parabolic reflector (2) having a parabolic reflector rim (20), a collar (9), which is positioned on the parabolic reflector (2), in particular on the parabolic reflector rim (20) a... | 07/17/2007 |
| 7242904 | Dual-band multiple beam antenna system for communication satellites A dual-band multiple beam antenna system for a communications satellite sharing a set of reflector antennas for the transmit and receive frequencies. One set of reflectors is common to both the downlink and uplink frequencies. The feed horns are diplexed and exhibit... | 07/10/2007 |
| 7242360 | High power dual band high gain antenna system and method of making the same A high power dual band high gain antenna system is provided. The antenna system employs one or more feedhorn clusters to distribute power associated with the transmission of high power signals. A first feedhorn cluster is associated with a first frequency band and a... | 07/10/2007 |
| 7236681 | Feed assembly for multi-beam antenna with non-circular reflector, and such an assembly that is field-switchable between linear and circular polarization modes A feed assembly for an antenna having a non-circular reflector, in which the feed assembly includes a feed horn capable of correcting the distortions of circularly polarized signals caused by the non-circular reflector profile, and wherein the feed horn is coupled w... | 06/26/2007 |
| 7236142 | Electromagnetic bandgap device for antenna structures An electromagnetic bandgap device is mountable on a RF disturbing structure of an antenna to minimize signal field disturbance imparted thereby. The RF disturbing structure is oriented in a direction substantially parallel to a path of travel of an antenna signal an... | 06/26/2007 |
| 7227509 | Antenna device Linear elements 101a to 101d are conductors, which have the element length equivalent to half a wavelength, have been placed so that they may draw a diamond shape. Delay elements 102a and 102b are bent conducto... | 06/05/2007 |
| 7212170 | Antenna beam steering via beam-deflecting lens and single-axis mechanical rotator An antenna beam steering apparatus and method comprising providing an antenna, employing a beam-deflecting lens through which energy passing from and to the antenna is deflected, and rotating the antenna with a single-axis rotator. ... | 05/01/2007 |
| 7205949 | Dual reflector antenna and associated methods An antenna system includes an antenna feed aligned with a subreflector and a main reflector. The subreflector has a concave surface defining a vertex. A main reflector having a concave surface is aligned with the subreflector to define an antenna focal area at the v... | 04/17/2007 |
| 7185596 | Seed slide for use in an agricultural seeding machine A seeding machine includes at least one seed metering system and at least one seed placement system. Each seed placement system is in communication with a corresponding seed metering system. Each seed placement system includes a seed slide having a bottom end and a ... | 03/06/2007 |
| 7187340 | Simultaneous multi-band ring focus reflector antenna-broadband feed Compact multi-band antenna system (500) includes a main reflector (502) having a shaped surface of revolution about a boresight axis of the antenna operable at a plurality of frequency bands spectrally offset from each other. A multi band feed system (... | 03/06/2007 |
| 7183990 | Aperture illumination control membrane A device for modifying electromagnetic illumination of a reflector aperture defined by a reflector surface is mounted in front of the reflector aperture in a spaced apart relationship relative to the reflector surface. The device at least partially covers the reflec... | 02/27/2007 |
| 7180470 | Enhanced antenna stowage and deployment system An antenna stowage and deployment system, including a spacecraft and at least one pair of adjacent nesting antenna assemblies. Each of the antenna assemblies further includes an articulating deployment couple affixed to the spacecraft for deploying the antenna assem... | 02/20/2007 |
| 7173575 | Reflector antenna support structure A support structure apparatus for a reflector antenna having a main reflector. The support structure includes a plurality of sub-brackets and a main bracket. The sub-brackets each having a plurality of main reflector connection points and a main bracket connection p... | 02/06/2007 |
| 7161549 | Single-aperture antenna system for producing multiple beams A novel single-aperture antenna system for producing multiple closely spaced or overlapping beams. The antenna system has multiple feeds for radiating energy, and a hyperboloidal or ellipsoidal main reflector responsive to the radiated energy for forming multiple be... | 01/09/2007 |
| 7145349 | Method for increasing the interference resistance of a time frame reflectometer and a circuit device of implementing said method The invention relates to methods and a circuit for increasing the interference resistance of a time frame reflectometer, in particular with respect to high frequency irradiation. A transmitted pulse (XS) is generated at a pulse repeater frequency (fprf) and coupled ... | 12/05/2006 |
| 7138953 | Method and apparatus for reducing the effects of collector blockage in a reflector antenna A method of reducing blockage in a reflector antenna includes disposing a feed mechanism in front of a first reflector and disposing a second reflector in front of the feed mechanism. The second reflector permits energy to pass that would otherwise have been blocked... | 11/21/2006 |
| 7138958 | Reflector antenna radome with backlobe suppressor ring and method of manufacturing A radome adapted to reduce backlobes of an associated reflector antenna via application of a conductive ring with an inward facing edge about the periphery of the radome. The conductive ring may be applied extending around the radome periphery to an inside and or ou... | 11/21/2006 |
| 7138960 | Deployable electromagnetic concentrator A deployable electromagnetic concentrator comprises a facet stem hub assembly having at least one rotatable segment and a plurality of facets stems coupled thereto. At least one of the facet stems is coupled to at least one of the rotatable segments. The concentrato... | 11/21/2006 |
| 7129903 | Method and apparatus for mounting a rotating reflector antenna to minimize swept arc An apparatus and method for forming a cassegrain reflector antenna that allows an extended length feed horn to be employed without increasing an overall depth of the antenna. This enables the swept diameter of the antenna to be maintained at a minimum comparable to ... | 10/31/2006 |
| 7119754 | Receiving antenna for multibeam coverage The invention relates to a receiving antenna for satellite telecommunications. More specifically, the invention relates to an active antenna comprising a network of elementary sources which is positioned at the focal point of a focusing reflector. According to the i... | 10/10/2006 |
| 7110716 | Dual-band multiple beam antenna system for communication satellites A dual-band multiple beam antenna system for a communications satellite sharing a set of reflector antennas for the transmit and receive frequencies. One set of reflectors is common to both the downlink and uplink frequencies. The feed horns are diplexed and exhibit... | 09/19/2006 |
