Title :
A study of the diffraction and blockage effects on the efficiency of the Cassegrain antenna
Author :
Sudhakar Rao, K. ; Kilkal, P.S.
Author_Institution :
Dept. of Electrical Engng., Univ. of Manitobe, Winnipeg, Man., Canada
Abstract :
The diffraction and blockage efficiencies of the conventional Cassegrain antenna are calculated by using the uniform geometrical theory of diffraction and physical optics. The various subefficiency terms corresponding to different diffraction fields are tabulated for a typical antenna and the results are discussed. Design curves that provide the aperture efficiency value as a function of main reflector diameter, subreflector diameter and the feed illumination taper are presented.
Keywords :
antenna theory; electromagnetic wave diffraction; geometrical optics; reflector antennas; Cassegrain antenna; antenna theory; aperture efficiency; blockage effects; diffraction; feed illumination taper; main reflector diameter; reflector antennas; subreflector diameter; uniform geometrical theory of diffraction; Aperture antennas; Diffraction; Feeds; Geometrical optics; Lighting;
Journal_Title :
Electrical Engineering Journal, Canadian
DOI :
10.1109/CEEJ.1984.6591356
