DocumentCode
1007778
Title
Study of efficiency of spherical Gregorian reflector
Author
Doan, D.L. ; Vu, T.B.
Author_Institution
University of New South Wales, Kensington, NSW, Australia
Volume
23
Issue
6
fYear
1975
fDate
11/1/1975 12:00:00 AM
Firstpage
819
Lastpage
824
Abstract
The use of the current distribution method to analyse the field in the image space of a spherical Gregorian antenna when the main dish is illuminated by a linearly polarized plane wave is discussed. It is shown that the incident field distribution at the subdish is rather irregular, although it can be approximated by a smooth Gaussian distribution curve. In addition, it is possible to design a simple corrugated circular horn, so that the field at its aperture closely matches the incident field. As a result, a high efficiency wide-band system can be achieved.
Keywords
Reflector antennas, multireflector; Reflector antennas, spherical; Spherical reflector antennas; Antenna measurements; Assembly; Conducting materials; Connectors; Feeds; Gain measurement; Joining materials; Polarization; Reflector antennas; Seals;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1975.1141181
Filename
1141181
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