본고에서는 현재 해외에서 개발되어 운용되고 있는 flexible 탑재체인 Hylas-1, Quantum, WGS 위성 등에 대한 소개를 하였다. 다중빔 탑재체로서는 인텔셋의 에픽 위성을 소개하였고 이의 핵심 부품인 채널화기는 일본의 것과 에어버스사의 프로세서를 소개하였다. 우리 나라에서 개발 중인 한국형 flexible 탑재체의 개발 방향을 설명하였다. 이를 위해 개발 중이거나 개발 완료된 탑제체의 구성도, 재구성 빔용 배열 안테나 및 성형빔, 디지털 채널화기, 가변 국부발진기 및 주파수 합성기, 그리고 주파수와 대역폭을 변경할 수 있는 가변 필터에 대하여 기술하였다.
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