Satellite communications systems and methods using diverse polarizations
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United States of America Patent
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Dec 22, 2009
Grant Date -
Aug 24, 2006
app pub date -
Dec 20, 2005
filing date -
Feb 22, 2005
priority date (Note) -
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Abstract
Communications occur between a satellite and respective first and second classes of terminals using substantially different polarizations. The first class of terminals may include fixed and/or vehicle-based terminals, and the second class of terminals may include handheld terminals. The second class of terminals may include terminals configured to preferentially receive and/or transmit linearly polarized signals, for example, terminals with substantially linearly polarized antennas, and the first class of terminals may include terminals configured to preferentially receive and/or transmit circularly polarized signals, for example, terminals with patch and/or helical antennas configured to transmit and/or receive substantially circularly polarized signals.
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