Aperture antenna having the improved cross-polarization performance
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United States of America Patent
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-
Dec 22, 1981
Grant Date -
N/A
app pub date -
May 15, 1980
filing date -
Jun 26, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An aperture antenna having the improved phase performance of radiated co-and cross-polarization has been found. The present antenna has, at least, a horn for radiating an electro-magnetic wave, and means for focusing the electromagnetic wave. The focusing means is actually implemented by a reflector or a dielectric lens, and is designed so that the phase distribution of an electric field on an aperture plane of the focusing means has the period of .pi./2 and the maximum phase at (2m-1) .pi./8 from the reference plane of one polarized wave in the polar coordinates system on the aperture plane, where m is an integer.
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