DocumentCode
1140128
Title
Out-of-Band Response of Reflector Antennas
Author
Hill, David A.
Volume
28
Issue
2
fYear
1986
fDate
5/1/1986 12:00:00 AM
Firstpage
80
Lastpage
89
Abstract
The response of reflector antennas to out-of-band frequencies has been analyzed using physical optics. A simple approximate expression has been obtained for the effective aperture, and this expression yields both the receiving pattern and the frequency dependence of the on-axis gain. The theory has been compared with published out-of-band measurements, and the pattern agreement is good, but the measured gain falls below the theory. This discrepancy is caused by mismatch loss in the coax-to-waveguide adapter.
Keywords
Antenna measurements; Antennas and propagation; Apertures; Electromagnetic waveguides; Feeds; Frequency; Gain measurement; Optical waveguides; Physical optics; Reflector antennas; Effective aperture; Poynting vector; focal region; out-of-band response; paraboloid; physical optics; receiving pattern; reflector antenna;
fLanguage
English
Journal_Title
Electromagnetic Compatibility, IEEE Transactions on
Publisher
ieee
ISSN
0018-9375
Type
jour
DOI
10.1109/TEMC.1986.4307253
Filename
4307253
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