中国空间科学技术

Chinese Space Science and Technology

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Dual-path Quasi-optical System for Space Remote Sensing

Yu Junsheng1 Chen Xiaodong2 Miao Jungang3 Liu Shaohua1 Xu Liang2 Liu Xiaoming1 Su Hansheng1 Wei Qin'gang1 Mai Yuan1 Liu Hairui1 Bai Ming3 (1 Beijing University of Posts and Telecommunications,Beijing 100876) (2 Queen Mary,University of London,London E1 4NS) (3 Beihang University,Beijing 100191)   

  • Published:2010-08-25 Online:2010-08-25
  • Supported by:
    国防科技工业民用航天科研预先研究项目(C1320061301)

Abstract: Quasi-optical networks (QON) were widely used in the remote sensing radiometry system embedded in the satellite platform. Beijing University of Posts and Telecommunications,Queen Mary University of London in collaboration with Beihang University had designed a dual-path QON by using the diffractive Gaussian beam analysis (DGBA) method developed at Queen Mary. The system required an output beamwidth of 20 degrees at-8.68dB with a side lobe below-25dB. Good agreement is achieved between simulation and experiment.