A Tennis-court-sized Reflector for Communications Satellite-Use for Engineering Test Satellite VIII

Miyasaka, Akihiro; Shintate, Kyoji; Tsujihata, Akio; Tsutsumi, Yuji; Yoshihara, Makoto

추천

검색

자료유형: 학술저널

저자정보: Miyasaka, Akihiro (National Space Development Agency of JAPAN Tsukuba Space Center) Shintate, Kyoji (National Space Development Agency of JAPAN Tsukuba Space Center) Tsujihata, Akio (National Space Development Agency of JAPAN Tsukuba Space Center) Tsutsumi, Yuji (NEC TOSHIBA Space Systems, Ltd 4035) Yoshihara, Makoto (NEC TOSHIBA Space Systems, Ltd 4035)

저널정보: 통신위성우주산업연구회 Joint Conference on Satellite Communications Joint Conference on Satellite Communications 2002년

발행연도: 2002.1

수록면: 221 - 225 (5page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

Large deployable reflector (LDR) is state-of-the-arts technology in communication satellites to achieve some satellite communication services. Government agencies of Japan are planning some experiments on communication and broadcasting services via satellite. Engineering Test Satellite VIII (ETS-VIII) will be launched in 2004, and demonstrated satellite voice communication by using cellular phones and high-quality audio broadcasting. An antenna system is combination of the LDR and active-phased-array feeders. The LDR, 20 m along its major axis, based on a modular-mesh concept in which structure consists of several basic modules has extensibility. In order to develop the LDR, the design points on surface accuracy and electrical performance are evaluated. A surface error caused by the assembly of multiple modules was evaluated. The surface accuracy measured data compared with analysis results. Hence, the surface of the LDR was accurate enough within the system requirement. The electrical performance, especially, passive intermodulation (PIM) was measured by using a 7-module reflector. The measured PIM is so small that the LDR is satisfied the system requirements.

#Large deployable reflector #LDR #Engineering Test Satellite VIII #Reflector #Deployment

참고문헌 (0)

참고문헌 신청

참고문헌이 DBpia에서 서비스 중이라면, [참고문헌 신청]을 통해 등록해보세요

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!