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Accessing LP transponders with CP terminals via wavefront multiplexing techniques

  • US 8,538,326 B2
  • Filed: 06/29/2011
  • Issued: 09/17/2013
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
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1. A satellite communication system comprising:

  • a circularly-polarized (CP) terminal, at a receiving side of said satellite communication system, configured to concurrently receive data from a first terminal and a second terminal, at a transmitting side of said satellite communication system, through multiple linearly-polarized (LP) communication channels that are on a satellite and at a common frequency slot, wherein one of said linearly-polarized communication channels is configured to carry a first sum of a first signal, from said first terminal, weighted by a first parameter in a first weighting vector plus a second signal, from said second terminal, weighted by a second parameter in a second weighting vector and another one of said linearly-polarized communication channels is configured to carry a second sum of said first signal weighted by a third parameter in said first weighting vector plus said second signal weighted by a fourth parameter in said second weighting vector; and

    a polarization-realignment element at a downstream side of said circularly-polarized (CP) terminal at said receiving side of said satellite communication system.

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