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http://dx.doi.org/10.7236/JIIBC.2018.18.3.43

Sidelobe Distortion Analysis of Offset Parabolic Antenna by Scatterer  

Kim, Seungho (Dept. of Electrical Engineering, Myongji College)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.18, no.3, 2018 , pp. 43-48 More about this Journal
Abstract
Offset parabolic antenna have been widely used for satellite communication system. To locate feedhorn on antenna system, it requires arbitrary structure which forces to fix on system. However, arbitrary scatterer increases sidelobe level of elevation axis. To solve this problem, we need to predict which angle level is increased by arbitrary scatterer simply. Because conventional simulation method takes a long time to simulate parabolic antenna system and needs exclusive software. In this paper we can calculate sidelobe angle simply by using raytracing method, check coincidence between calculated and simulated result and show how arbitrary scatterer affects sidelobe lavel of elevation axis of offset parabolic antenna depending on angle and location of arbitrary structure.
Keywords
raytracing; elevation sidelobe; offset parabolic antenna system;
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