DocumentCode :
1028614
Title :
An offset bifocal reflector antenna design for wide-angle beam scanning
Author :
Rappaport, Carey M.
Author_Institution :
COMSAT Laboratories, Clarksburg, MD, USA
Volume :
32
Issue :
11
fYear :
1984
fDate :
11/1/1984 12:00:00 AM
Firstpage :
1196
Lastpage :
1204
Abstract :
A synthesis procedure and performance results for an offset dual reflector with perfect focusing at 
of beam scan are presented. This bifocal antenna extends the theory of the previously reported symmetric system to an offset design. Approximations, such as the smearing of focal points into a "focal ring," are eliminated, as is blockage. The offset design affords greater design flexibility, although the synthesis is more complex. Computed and experimental results demonstrate the improved beam-scanning performance of this antenna.
of beam scan are presented. This bifocal antenna extends the theory of the previously reported symmetric system to an offset design. Approximations, such as the smearing of focal points into a "focal ring," are eliminated, as is blockage. The offset design affords greater design flexibility, although the synthesis is more complex. Computed and experimental results demonstrate the improved beam-scanning performance of this antenna.Keywords :
Reflector antennas, multireflector; Antenna theory; Artificial satellites; Earth; Frequency; Geometrical optics; Optical design; Packaging; Reflector antennas; Satellite antennas; Surface fitting;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1984.1143227
Filename :
1143227
Link To Document :
