摘要 |
System for dynamically tracking a position of a target with an antenna in a communication system. The system includes an antenna system ( 410 ) configured for generating a sum and difference antenna pattern ( 201 - 1, 201 - 2 ). A sum RF channel ( 401 ) is coupled to a sum channel output of the antenna system. A difference RF channel ( 402 ) is coupled to a difference channel output of the antenna system. An RF coupler ( 422 - 1 ) is provided that has a first input coupled to the sum RF channel and a second input coupled to the RF difference channel. One or more coupling control devices ( 418 - 1, 418 - 2 ) selectively vary an effective coupling value as between the difference channel and the sum channel. An antenna tracking error signal is generated at an output of the coupler.
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