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Multi-beam antenna system with shaped reflector for generating flat beams

  • US 6,882,323 B2
  • Filed: 05/09/2003
  • Issued: 04/19/2005
  • Est. Priority Date: 05/09/2003
  • Status: Expired due to Fees
First Claim
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1. A side-fed dual reflector antenna system comprising:

  • a feed array including separate feeds for generating separate respective antenna beams;

    a subreflector for reflecting the separate respective antenna beams generated by the separate feeds of the feed array; and

    a reflector having a shaped reflection surface for reflecting the separate respective antenna beams received from the subreflector toward a terrestrial target in a manner that produces substantially contiguous flat beams, each of which provides substantially uniform coverage within a predetermined coverage area on the terrestrial target;

    the subreflector and each of the separate feeds in the feed array being arranged so that a center of each of the separate respective antenna beams illuminates a center of the reflector subsequent to being reflected from the subreflector.

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