본 논문은 이동 위성통신을 위한 능동위상배열 안테나시스템의 주요부품 중의 하나인 빔 성형모듈 설계에 관하여 서술한다. 본 모듈은 주 신호 및 추적신호를 위한 두 개의 모듈로 구성되어 있다. 이중, 주 신호블록은 위상배열안테나로부터 입력된 신호전력을 추적신호블록으로 전송하는 역할을 수행하며, 추적신호블록은 능동위상배열 안테나시스템의 주요기능인 추적신호의 빔 성형과 전자적 빔 제어기능을 수행한다. 또한, 본 모듈은 위상특성 및 선형이득 등의 시스템에서 요구되는 전기적사양을 만족하며, 해당 성능의 보다 면밀한 검증을 위하여, 제작된 빔 성형모듈을 장착한 능동위상배열 안테나시스템을 이용하여 야외구동시험을 수행하였다.
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