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Antenna system with multiple independently steerable shaped beams

  • US 9,774,095 B1
  • Filed: 09/22/2011
  • Issued: 09/26/2017
  • Est. Priority Date: 09/22/2011
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • an antenna system configured to provide at least a first beam and a second beam, the antenna system comprising;

    a main reflector; and

    at least a first subreflector associated with the first beam and a second subreflector associated with the second beam;

    whereinthe antenna system is disposed on a spacecraft and is communicatively coupled with a ground station;

    each subreflector is configured to illuminate the main reflector, the first subreflector being directly illuminated by a first dedicated feed element such that no optical component is disposed between the subreflector and the first dedicated feed element; and

    the first subreflector is configured to steer the first beam, independently of the second beam, without moving the first dedicated feed element.

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