DocumentCode :
990171
Title :
Unique reflector arrangement with very wide field of view for multibeam antennas
Author :
Dragone, C.
Author_Institution :
Bell Laboratories, Crawford Hill Laboratory, Holmdel, USA
Volume :
19
Issue :
25
fYear :
1983
Firstpage :
1061
Lastpage :
1062
Abstract :
We minimise the aberrations arising in a double reflector antenna when the feed is displaced from the focus. In a previous article, astigmatism and primary coma were reduced by slightly deforming the two reflecting surfaces and optimising the principal ray angles of incidence. Here we further reduce aberrations by determining the optimum subreflector magnification. The result is a new reflector arrangement, consisting of a deformed paraboloid combined with a deformed hyperboloid, having the widest possible field of view obtainable with two reflectors in a compact arrangement of short focal length.
Keywords :
aberrations; antenna theory; reflector antennas; aberrations; deformed hyperboloid; deformed paraboloid; double reflector antenna; multibeam antennas; optimum subreflector magnification; short focal length; very wide field of view;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19830720
Filename :
4248277
Link To Document :
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