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http://dx.doi.org/10.5139/JKSAS.2014.42.6.515

The Axial-displaced gregorian antenna design using Ray-tracing Method  

Kim, Chun-Won (SAMSUNG THALES Co.)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.42, no.6, 2014 , pp. 515-521 More about this Journal
Abstract
In this paper, we designed axis-displaced Gregorian antenna by using Ray-tracing method. This antenna improves gain, VSWR by rotating the axis of the sub-reflector to get rid of E-field wave returned from sub-reflector to feed horn. Therefore it reduce the sub-reflector size and the volume of antenna. This method is used to track the propagation path for radiation pattern of feed horn from feed horn to sub-reflector, main-reflector and air. We get E-field distribution of this antenna aperture and calculate antenna radiation pattern and optimize the antenna performance. The Ray-tracing Method was verified because the gain, radiation patterns, side lobe level, beam width and return loss of the designed antenna are very similar to CST simulation result and a measured result of the fabricated antenna.
Keywords
Axis-displaced Gregorian Antenna; Ray-tracing method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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