전자공학회논문지A (Journal of the Korean Institute of Telematics and Electronics A)
- 제32A권9호
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- Pages.106-113
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- 1995
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- 1016-135X(pISSN)
수정곡면 옵셉 복 반사판 안테나의 복사특성 해석-I : 부반사판 해석
Analysis of a Shaped Dual Offset Reflector Antenna-I : Subreflector Analysis
초록
The radiation characteristics of the subreflector of a shaped dual offset reflector antenna are analyzed by the uniform theory of diffraction(UTD). The discrete shaped subreflector profile is transformed into an analytic function by the global interpolation. To obtain the first and the second derivative terms on the surface, the local interpolation method is used. The reflection point needed for the geometrical optics(GO) is found by using the multi-dimensional function minimizing algorithm. The radiation pattern of a Gregorian type shaped subreflector is presented. The characteristics of the radiation patterns for various feed edge taperings and frequencies are examined.
키워드