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Array beam pattern is distorted when the transmitter and receiver module's (TRM's) malfunction occurs as time goes on. Degradations of solid state devices, semiconductors, integrated circuits and RF circuits, or changes in the characteristics of active devices deteriorate the performance of an entire system [1], [2]. The degradation of the TRM performance distorts an original beam pattern. That is...
Digital beamforming array antenna systems are installed outdoors for long periods of time. When a transmitter/receiver module (TRM) error occurs, the beam pattern is distorted. In this case, resynthesizing the optimal beam pattern with all functioning TRMs, without failed TRM, is preferable to TRM repair or replacement. This letter proposes an algorithm for resynthesizing the optimal beam pattern...
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