The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Design of Deployable Lightweight Antenna for Satellite SAR

위성 SAR 센서용 전개형 경량화 안테나 설계

  • Lee, Taek-Kyung (School of Electronics, Telecommunication and Computer Engineering, Korea Aerospace University)
  • 이택경 (한국항공대학교 항공전자 및 정보통신공학부)
  • Received : 2014.10.10
  • Accepted : 2014.11.04
  • Published : 2014.11.30
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Abstract

We present a design of the deployable lightweight antenna to be used in the satellite satisfying the required performance of the onboard sensor. The analysis is performed on the SAR antenna requirements, deploying techniques including material selection, and the characterization of deployable antenna with central disk. The performance of the solid deployable antennas and the mesh antennas are simulated, and the CFRP(Carbon Fiber Reinforced Plastics) samples are manufactured and tested. It is confirmed that the deployable antennas with central disk can meet the required performance by using deploying panels or mesh.

위성에 활용하기 위한 전개형 경량화 안테나를 구현하기 위하여 사용되는 센서의 요구 성능을 충족하는 안테나의 설계방법을 제시하였다. 탑재되는 SAR(Synthetic Aperture Radar)의 성능을 충족하기 위한 안테나의 제반 특성과 전개방법 및 재료, 중앙판이 있는 전개형 안테나의 특성을 분석하였다. 경량화 안테나로 솔리드 전개형 안테나와 메쉬 전개형 안테나의 전개 성능을 분석하고, 사용 재료로서 CFRP(Carbon Fiber Reinforced Plastics)의 특성을 실험하였다. 중앙판이 있는 전개형 안테나의 경우, 전개 패널과 메쉬를 사용하는 경우 요구 성능을 충족할 수 있음을 확인하였다.

Keywords

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