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학술대회 CATR Test for Ka Band Multi-beam Antenna
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저자
최장섭, 이용덕, 이성팔
발행일
200806
출처
International Communications Satellite Systems Conference (ICSSC) 2008, pp.1-6
출판사
AIAA
DOI
https://dx.doi.org/10.2514/6.2008-5512
협약과제
08MR1700, 통신해양기상위성 위성통신시스템기술개발, 이성팔
초록
ETRI has been developing the Ka band antenna system for COMS(Communications, Ocean, and Meteorological Satellite) which will be launched at the end of 2008. The Ka band antenna system consists of two single offset reflectors and feed assemblies. This paper describes the results of antenna level CATR(Compact Antenna Test Range) test and range alignment for Ka band multi-beam antenna. The CATR test configuration for Ka band antenna system is introduced. The measured performance parameters, such as gain, side-lobe, cross-polarization discrimination, and cross-polarization isolation, etc. are described. Also, the CATR test results are compared with antenna NFR(Near Field Range) test results. Antenna pointing alignment accuracy is verified and the measured alignment data is presented. From the results of antenna CATR test, it can be concluded that the COMS Ka band antenna has an excellent electrical performance and complies with the required specification with good pointing alignment accuracy. Copyright © 2008 by the American Institute of Aeronautics and Astronautics, Inc.
KSP 제안 키워드
Cross polarization(CP), Cross-polarization Discrimination(XPD), Multibeam antenna, Performance parameters, Polarization isolation, Test configuration, alignment accuracy, antenna pointing, compact antenna test range, distributed antenna systems(DAS), electrical performance