Title :
GTD analysis of the radiation patterns of a shaped subreflector
Author :
Narasimhan, M.S. ; Ramanujam, P. ; Raghavan, K.
Author_Institution :
Indian Inst. of Technology, Madras, India
fDate :
9/1/1981 12:00:00 AM
Abstract :
A technique of analyzing the principal plane radiation patterns of a subreflector shaped using the method enunciated by Collins [1] has been presented. The analysis is based on the uniform geometrical theory of diffraction (UGTD) [2], and a simplified procedure has been adopted in the determination of the principal plane radii of curvature of the subreflector. The numerical results obtained based on UGTD correlate well with those obtained using the method of physical optics (PO).
Keywords :
Geometrical diffraction theory; Reflector antennas, multireflector; Antenna radiation patterns; Electromagnetic analysis; Electromagnetic devices; Feeds; Geometrical optics; Pattern analysis; Physical optics; Physical theory of diffraction; Receiving antennas; Reflector antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1981.1142662
