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Method and system for providing satellite coverage using fixed spot beams and scanned spot beams

  • US 20010018327A1
  • Filed: 03/05/2001
  • Published: 08/30/2001
  • Est. Priority Date: 06/02/1997
  • Status: Active Grant
First Claim
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1. A system for providing high frequency data communications in a satellite-based communications network, the system comprising:

  • a plurality of communications satellites each having uplink and downlink antennas capable of receiving and transmitting a plurality of signals utilizing a plurality of beams having fixed spot beams and scanned spot beams to a plurality of spot coverage areas and a plurality of scanned spot areas respectively at a predetermined range of frequencies, the plurality of satellites each further having receiving and transmitting beam forming networks coupled to the uplink and downlink antennas respectively, said antenna having respective adjacent reconfigurable receiving and transmitting antenna elements; and

    a controller located on said satellite coupled to each of said transmitting and receiving beam forming networks, said controller selecting either a spot coverage area or a scanned spot beams for each of the receiving and transmitting antenna elements.

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