发明名称 |
A compact folded optics antenna system for providing adjacent, high gain antenna beams |
摘要 |
An antenna system comprising a feed array, a subreflector and a main reflector which are oriented to define a folded optics antenna geometry. The feed array is comprised of a plurality of separate feeds which are aligned on a predetermined contour. Each feed is coupled to a feed network which acts to combine the illumination beams of a preselected number of feeds to produce a plurality of composite illumination beams. Each composite illumination beam is directed to be incident upon a separate predetermined location on the subreflector which directs the illumination beams towards the main reflector. Each composite illumination beam is reflected by the main reflector in a preselected direction so that each composite illumination beam forms an antenna beam that impinges a predetermined coverage area on the Earth. Each antenna beam defines a separate coverage cell in the coverage area, wherein the position and orientation of the feeds, the subreflector and the main reflector provides adjacent, antenna beams over a full Earth field of view coverage area where each antenna beam is approximately symmetrically shaped. <IMAGE>
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申请公布号 |
EP1020949(A2) |
申请公布日期 |
2000.07.19 |
申请号 |
EP20000100749 |
申请日期 |
2000.01.14 |
申请人 |
TRW INC. |
发明人 |
BROAS, ROMULO F.;BRUNDRETT, DAVID L.;CHANDLER, CHARLES W.;WU, TE-KAO |
分类号 |
H01Q15/14;H01Q19/17;H01Q19/18;H01Q19/19;H01Q25/00;H04B7/185;(IPC1-7):H01Q15/16 |
主分类号 |
H01Q15/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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