Analysis of prime-focus reflector antennas by WIPL code

Abstract

The paper presents a new method for the analysis of the reflector antennas together with their feeds and supporting structures. The method combines the WIPL code (entiredomain Galerkin method applied to geometrical model made of bilinear surfaces) and specific segmentation techniques, thus enabling efficient analysis of the reflectors the diameter of which is up to D=40k at personal computers. Good agreement with other theoretical and expenrmental results is observed. In addition, results illustrating the influence of feedsupport struts on the radiation pattern are presented.