A Study on the Ka-Band Satellite Output Power Control Technology 


Vol. 37,  No. 11, pp. 1072-1081, Nov.  2012


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  Abstract

For Ka-band satellite communication system, a new flexible payload technologies which can compensate rain attenuation have to be developed. The Ka-band satellite output power control technology enables to adjust downlink output power of satellite payload in Ka-band (19.8 ~ 22.2 ㎓). In this paper, we introduce multi-beam antenna with multi-port amplifiers for Ka-band flexible output power allocation system. We have designed multi-beam antenna with array-fed reflector to form 8 beams on the Korean Peninsula. The target EIRP per beam is more than 59 ㏈W. The system is designed to present 6 ㏈ boost beams for rainfall areas. Individual beams were optimized by the excited amplitude and phase of feed elements of the feed cluster. The multi-port amplifier(MPA) is one of effective approaches for flexible power allocation in combination with multi-beam antenna. In case of using MPA in multi-beam system, the inter-port isolation characteristic of MPA is important parameter to avoid interference among the output ports. In this paper, we propose a new MPA structure that consists of two 4x4 Buttler matrixes and phase/amplitude controllable power amplifier modules.

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  Cite this article

[IEEE Style]

D. Shin, S. Yun, S. Moon, H. Lee, M. Eom, I. Yom, "A Study on the Ka-Band Satellite Output Power Control Technology," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 11, pp. 1072-1081, 2012. DOI: .

[ACM Style]

Dong-hwan Shin, So-hyeun Yun, Seong-mo Moon, Hong-yeol Lee, Man-seok Eom, and In-bok Yom. 2012. A Study on the Ka-Band Satellite Output Power Control Technology. The Journal of Korean Institute of Communications and Information Sciences, 37, 11, (2012), 1072-1081. DOI: .

[KICS Style]

Dong-hwan Shin, So-hyeun Yun, Seong-mo Moon, Hong-yeol Lee, Man-seok Eom, In-bok Yom, "A Study on the Ka-Band Satellite Output Power Control Technology," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 11, pp. 1072-1081, 11. 2012.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880