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8159410 |
Reflective antenna assembly
A reflective antenna is provided according to one or more embodiments of the invention. In one embodiment, the reflective antenna may include a radome having a fixed orientation within the...
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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...
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8094081 |
Dual band radio frequency (RF) and optical communications antenna and terminal design methodology and implementation
A dual-band antenna is provided that combines two normally disparate communications modes into a single compact aperture minimizing overall mass and volume, while maintaining high performance...
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8009116 |
Device for two-dimensional imaging of scenes by microwave scanning
For two-dimensional imaging of scenes through continuous passive or active microwave scanning, use is made of a fully mechanized directional antenna array comprising a main reflector (1), a primary...
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8006689 |
Reflector assembly for energy concentrators
In an energy wave solar reflector assembly (12) for an energy concentrator (10), the assembly has a support structure (21) with support arms (22) extending from a central zone (24), and an array of...
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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...
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7911403 |
Vehicle mounted antenna and methods for transmitting and/or receiving signals
An antenna for communicating with a satellite from a moving vehicle. The antenna comprises a transmitter for generating a transmission signal, main and sub reflectors, and a waveguide associated...
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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...
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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...
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7868840 |
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...
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7839349 |
Tunable substrate phase scanned reflector antenna
In some embodiments, a reflector antenna may include one or more of the following features: (a) a reflector having a tunable reflective surface, (b) a reflector feed having tunable substrate...
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7773042 |
Conical scanning antenna system using nutation method
Provided is a conical scanning antenna system using a nutation method. The conical scanning antenna system includes: a main reflecting unit; a sub-reflecting unit which is disposed apart from the...
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7705796 |
Dual offset reflector system utilizing at least one gimbal mechanism
A dual offset reflector system is disclosed. The system comprises a main reflector, a subreflector, a first gimbal mechanism for positioning of the subreflector. The system includes at least two...
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7663544 |
Antenna system for sharing of operation
An antenna system for sharing of operation employs contiguous transmit frequencies. Transmit frequencies are separated into non-contiguous sub-groups isolated from one another by filters 158(+) and...
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7564420 |
Hybrid antenna system
A hybrid antenna system for providing a communication service or/and a satellite broadcasting receiving service by coarsely tracking a target satellite in a mechanical fashion and finely tracking...
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7471255 |
Antenna with reduced interference
The present invention relates generally to the field of reflector-type antennas based on the offset Gregorian design having a substantially paraboloidal-shaped primary reflector and a substantially...
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7450079 |
Gimbaled gregorian antenna
In one embodiment, a gimbaled reflector antenna is provided that includes only four reflectors comprising: a first flat plate reflector, a second flat plate reflector, and an ellipsoidal reflector,...
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7446721 |
Satellite tracking antenna system and method therefor
The present invention relates to a satellite tracking antenna system and a satellite tracking method. Step tracking in which the size of a satellite signal sampled in at least one position in which...
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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...
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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...
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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...
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7405708 |
Low profiled antenna
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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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7109935 |
Combined optical and electromagnetic communication system and method
An antenna system for communicating electromagnetic and optical signals using a common aperture is provided. The system includes at least one optical phased array terminal integrated with an...
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7098859 |
Antenna unit
In a variable power divider including a first 90° phase combiner (30), a second 90° phase combiner (40), and a phase-amplitude adjustment block (50), the phase-amplitude adjustment block (50) i...
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7095380 |
Antenna device
An antenna apparatus in which a combination of rectangular waveguides 9a and 10a and a combination of rectangular waveguides 9b and 10b are disposed bilateral symmetrically to each other, and a...
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7091922 |
Laser alignment apparatus and method
A method for aligning a feed horn in an antenna system (100) is disclosed. The antenna system (100) includes at least one reflector surface and one or more feed horns (141, 142, . . . 145). The...
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7081863 |
Reflector antenna
A reflector antenna device includes: an auxiliary reflector 1 that receives an electric wave radiated from an opening portion by a primary radiator 3 and reflects the electric wave; and a main...
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7042410 |
Microwave antenna feed with integral bandpass filter
An antenna feed with an integrated bandpass filter is disclosed. The antenna feed contains a reflector and a dipole antenna. A bandpass filter comprising one or more bandpass filter elements is...
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7038632 |
Co-located multi-band antenna
A multi-band reflector antenna having a main reflector, a sub reflector, a first feed and a second feed. The first feed, the sub reflector and the main reflector positioned in a Gregorian optic...
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7023394 |
Cassegrain-type feed for an antenna
A cassegrain-type feed for a parabolic antenna is a dual-band feed and employs a waveguide feeding a dielectric cone feeding a subreflector. The waveguide has an end-portion adjacent a narrow end...
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7015867 |
Illuminating reflector with low-gain propagator
An illuminating-reflector system is provided for transmitting a frequency band in an dispersed beam and a substantially collimated beam. The system includes a secondary reflector configured to...
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7009574 |
Plural-reflector antenna system
In order to lessen the deterioration of the VSWR, a plural-reflector antenna system is provided wherein an appropriately shaped vertex matching plate is disposed on the subreflector and electric...
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7006049 |
Dual reflector system and method for synthesizing same
In one embodiment of the present invention, an offset folded reflector pair is optimized for scanning off boresight by enforcing the Abbe Sine condition using a least-error approximation. Coma and...
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6995727 |
Reflector antenna feed
An antenna feed comprises, aligned and centered on an axis OO′, a waveguide having an inside diameter, a first end and a second end, a dielectric body having a portion inside the waveguide and a p...
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6985120 |
Reflector antenna with injection molded feed assembly
A reflector antenna with a self supported feed assembly that may be formed by injection molding. A waveguide portion of the feed assembly has a dielectric cone at a distal end that supports and...
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6982679 |
Coaxial horn antenna system
An antenna feed system includes a plurality of RF horn antennas (201, 202) for operating on a plurality of RF frequency bands. A first one of the feed horns (202) can have a boresight axis and is...
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6980170 |
Co-located antenna design
A method and apparatus are provided for transceiving signals. The method includes the steps of providing a secondary reflector within a focal region of a main reflector in a relative spatial...
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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...
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6972730 |
Antenna system
A feed probe (1), a semicylindrical sub-reflector (2) forming a primary radiator together with the feed probe (1), and a main reflector (3) arranged such that mirror surfaces of said main reflector...
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6965351 |
Dual-frequency-illuminating reflector
An illuminating reflector system is provided for transmitting first and second frequency bands for satellite and terrestrial communications. The illuminating reflector includes a first reflector...
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6943750 |
Self-pointing antenna scanning
A self-pointing antenna has a reflector, a feed or a sub-reflector and a plurality of support struts coupled between the reflector and the boom arm and supporting the feed or sub-reflector. At...
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6937201 |
Multi-band coaxial ring-focus antenna with co-located subreflectors
A multi-band ring focus antenna system includes a main reflector (408) that is operable at a plurality spectrally offset frequency bands. A first feed (301, 403) includes a first feed horn (301)...
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