DocumentCode
938047
Title
Dual-offset antennas with a spherical main reflector for small earth stations
Author
Bergmann, J.R. ; Costa, J. C A W da
Author_Institution
Center for Telecommun. Studies, Catholic Univ. of Rio de Janeira, Brazil
Volume
41
Issue
3
fYear
1993
fDate
3/1/1993 12:00:00 AM
Firstpage
355
Lastpage
356
Abstract
The design of dual-reflector antennas with a spherical main reflector for small earth stations is considered. An analysis of the field polarization throughout the system shows that it is possible to adjust the reflectors to obtain very low cross-polarization. The use of an elliptical main reflector projection is explored in order to enhance efficiency and lower side-lobe levels
Keywords
antenna radiation patterns; reflector antennas; satellite ground stations; dual offset antenna; dual-reflector antennas; elliptical main reflector projection; field polarization; side-lobe levels; small earth stations; spherical main reflector; very low cross-polarization; Antennas and propagation; Apertures; Costs; Feeds; Geometrical optics; Geometry; Large-scale systems; Polarization; Reflector antennas; Satellite ground stations;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/8.233125
Filename
233125
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