Title :
Design of Cassegrain antennas employing dielectric cone feeds
Author :
Clarricoats, P.J.B. ; Salema, C.E.R.C. ; Lim, S.H.
Author_Institution :
Queen Mary College, Department of Electrical & Electronic Engineering, London, UK
Abstract :
A design procedure is described for a Cassegrain antenna employing a dielectric cone feed. Modal methods are used to determine the cone geometry, while a geometric-optics method is used to determine the subreflector profile. Good agreement is observed between measured and predicted radiation patterns for a 1.2 m-diameter parabolic antenna utilising the feed and operating at a frequency near 11 GHz.
Keywords :
antenna feeders; antenna radiation patterns; microwave antennas; reflector antennas; 11 GHz; Cassegrain antenna design; dielectric cone feeds; modal methods; parabolic antenna; subreflector profile;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19720280
