DocumentCode
1029191
Title
Bicollimated Gregorian reflector antenna
Author
Rao, Jaganmohan B L
Author_Institution
Naval Res. Lab., Washington, DC USA
Volume
32
Issue
2
fYear
1984
fDate
2/1/1984 12:00:00 AM
Firstpage
147
Lastpage
154
Abstract
A bicollimated Gregorian reflector is structurally similar to a classical confocal Gregorian reflector, but its surfaces are shaped to have better scan capability. A geometrical optics procedure is used in designing the reflector surfaces. A three-dimensional ray tracing procedure is used in analyzing the aperture phase errors as the beam is scanned to different angles. The results show that the bicollimated configuration has about 45 percent greater angular scanning range than the equivalent confocal Gregorian reflector antenna.
Keywords
Reflector antennas, multireflector; Antenna arrays; Antenna feeds; Aperture antennas; Directive antennas; Geometrical optics; Optical design; Phased arrays; Radar antennas; Ray tracing; Reflector antennas;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1984.1143290
Filename
1143290
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