DocumentCode
1435629
Title
Antennas employing conical-dielectric horns. Part 2: The Cassegrain antenna
Author
Clarricoats, P.J.B. ; Salema, C.E.R.C.
Author_Institution
University of London, Department of Electrical & Electronic Engineering, Queen Mary College, London, UK
Volume
120
Issue
7
fYear
1973
fDate
7/1/1973 12:00:00 AM
Firstpage
750
Lastpage
756
Abstract
A design theory is presented for Cassegrain antennas employing dielectric-cone feeds. A modal approach is used to describe the aperture field over the subreflector, while a ray-optics method is employed to determine the sub-reflector profile and main-reflector aperture distribution. Experiments have been made with antennas designed for operation over bands centred near 11 and 18 GHz, and results are in generally good agreement with theory. These antennas are shown to have high efficiency, good main-beam symmetry and low mutual coupling.
Keywords
antenna feeders; antenna radiation patterns; dielectric devices; reflector antennas; waveguide antennas; Cassegrain antenna; aperture field; conical dielectric horns; dielectric cone feed; modal approach; ray optics method;
fLanguage
English
Journal_Title
Electrical Engineers, Proceedings of the Institution of
Publisher
iet
ISSN
0020-3270
Type
jour
DOI
10.1049/piee.1973.0163
Filename
5252001
Link To Document