The Boeing Company

Hughes Electronics Corporation

The Directv Group, Inc.

William D Beightol

Harold A Rosen

Parthasarathy Ramanujam

Mark T Austin

Andrew Jacob Stambaugh

John J Moncada

A communication system and method for reconfigurably transmitting and receiving signals via a multi-beam reflector antenna array are disclosed. The multi-beam antenna system comprises a plurality of rings of single beam reflectors, each reflector having its own feed, wherein the plurality of rings are substantially concentric or nested and disposed on separate planes such that the reflectors of adjacent rings are substantially interleaved. The method, in one embodiment, comprises generating beams from a first, second and third ring of single beam feeds, respectively reflecting each beam from the first, second and third ring of single beam feeds on a separate reflector to a substantially separate coverage area, wherein the first, second and third rings are substantially concentric and disposed on separate planes such that the reflectors of adjacent rings are substantially interleaved.

Multi-beam antenna communication system and method

An apparatus and method for microwave imaging and sounding with large bandwidth radiometer reflector antennas in a compact form. The apparatus comprises a main reflector for reflecting a beam, a polarizer for polarizing the reflected beam into a first polarized beam and a second polarized beam, a first Frequency Selective Surface (FSS) reflecting a first selected frequency of the first polarized beam, a second FSS reflecting a second selected frequency of the second polarized beam, a first feed receiving the first selected frequency and a second feed receiving the second selected frequency. The method comprises reflecting a beam, polarizing the reflected beam into a first polarized beam and a second polarized beam, reflecting a first selected frequency of the first polarized beam, reflecting a second selected frequency of the second polarized beam, receiving the first selected frequency and receiving the second selected frequency.

Multiple antenna reflectors for microwave imaging and sounding

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Riverside, CA, United States of America

William D Beightol