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Combined Gain Analysis of Satellite S-band Omni-antenna  

Kim, Joong-Pyo (한국항공우주연구원 위성전자팀)
Lee, Sang-Kon (한국항공우주연구원 위성전자팀)
Publication Information
Journal of Satellite, Information and Communications / v.7, no.1, 2012 , pp. 97-101 More about this Journal
Abstract
The TC&R(Telemetry, Command & Ranging) antennas should have the hemispherical omni antenna patterns to make sure that the communication link between the satellite and the ground station can be established under whatever satellite attitude during after launch to on-orbit mission. The hemispherical omni-antennas are typically placed on the +z axis and -z axis of the satellite to provide the spherical omni patterns. The S-band qaudrifilar helix antennas having RHCP and LHCP hemispherical omni pattern are designed to meet the antenna gain and the axial ratio requirements. To investigate the omni-antenna pattern characteristics depending on four cases of antenna polarization combination placed on the +z axis and -z axis, the antenna pattern of each case is analyzed. Based on the result, after installing the designed RHCP and LHCP S-band omni-antennas on the +z axis and -z axis of the satellite, the combined antenna gain is obtained and finally analyzed in conjunction with the communication link influence.
Keywords
satellites; omni-antennas; antenna pattern; polarization; combined gain;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Surrey Satellite Technology Ltd. home page: http://www.sstl.co.uk.
2 C. C. Kilgus, "Spacecraft and ground station applications of the resonant quadrifilar helix,"Digest of the 1974 Int. IEEE/AP-S Symp., pp. 75-77, 1974.
3 FEKO Suite 5.5, [Online]. Available: http://www.feko.info.
4 김중표, 양군호, 이상곤, COMS L-대역 송신 안테나 합성 이득해석, 통신위성우주산업연구회논문지 제5권 제 2호, pp. 19-24,2010.
5 J. Yuan, Y. Qiu, J. L. Guo, Y. L. Zou, and Q. Z. Liu, "Fast analysis of antenna mounted on electrically large composite objects," PIER 80, pp. 29-44, 2008   DOI