Antenna Beam Forming Systems/Methods Using Unconstrained Phase Response
First Claim
1. A method of operating a transceiver including an antenna having a plurality of antenna feed elements, comprising:
- defining a plurality of real valued antenna gain constraint values associated with a plurality of geographic constraint points within a geographic region;
generating complex valued antenna feed element weights that result in complex antenna gain values at the geographic constraint points based on the corresponding real valued antenna gain constraint values;
forming an antenna beam from the antenna to the geographic region using the complex valued antenna feed element weights; and
transmitting information over the antenna beam.
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Abstract
Beamforming methods for operating a transceiver including an antenna having a plurality of antenna feed elements include defining a plurality of real valued antenna gain constraint values associated with a plurality of geographic constraint points within a geographic region, and generating complex valued antenna feed element weights that result in complex antenna gain values at the geographic constraint points based on the corresponding real valued antenna gain constraint values. An antenna beam is formed from the antenna to the geographic region using the complex valued antenna feed element weights, and information is transmitted over the antenna beam.
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Citations
30 Claims
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1. A method of operating a transceiver including an antenna having a plurality of antenna feed elements, comprising:
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defining a plurality of real valued antenna gain constraint values associated with a plurality of geographic constraint points within a geographic region; generating complex valued antenna feed element weights that result in complex antenna gain values at the geographic constraint points based on the corresponding real valued antenna gain constraint values; forming an antenna beam from the antenna to the geographic region using the complex valued antenna feed element weights; and transmitting information over the antenna beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A transceiver, comprising:
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an antenna having a plurality of antenna feed elements; and an electronics system including a beam former configured to generate complex valued antenna feed element weights that result in complex antenna gain values associated with a plurality of geographic constraint points within a geographic region of the antenna based on corresponding real valued antenna gain constraint values defined for the plurality of geographic constraint points, and to form an antenna beam from the antenna to the geographic region using the complex valued antenna feed element weights. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A communications satellite, comprising:
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an antenna having a plurality of antenna feed elements; and an electronics system including a beam former configured to generate complex valued antenna feed element weights that result in complex antenna gain values associated with a plurality of geographic constraint points within a geographic region of the antenna based on corresponding real valued antenna gain constraint values defined for the plurality of geographic constraint points, and to form an antenna beam from the antenna to the geographic region using the complex valued antenna feed element weights.
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30. A satellite gateway, comprising:
an electronics system including a beam former configured to generate complex valued antenna feed element weights for antenna feed elements of an antenna of a remote satellite that result in complex antenna gain values associated with a plurality of geographic constraint points within a geographic region of the satellite antenna based on corresponding real valued antenna gain constraint values defined for the plurality of geographic constraint points, and to transmit the complex valued antenna feed element weights to the satellite for use in forming an antenna beam from the satellite antenna to the geographic region.
Specification