DocumentCode
2782880
Title
A high-efficiency dielectric-cone antenna feed
Author
Dunn, Alton G., III
Author_Institution
Georgia Institute of Technology, Atlanta, GA, USA
Volume
23
fYear
1985
fDate
31199
Firstpage
299
Lastpage
302
Abstract
A method is described which improves the efficiency of the dielectric-cone feed used in reflector antennas. The traditional "dielguide" feed uses a solid dielectric cone to support the subreflector in a quasi-Cassegrain antenna configuration. The dielectric cone eliminates the need for additional subreflector supports, thus reducing the aperture blockage. In addition, the dielectric cone operates to confine the feed energy and reduce spillover losses. A modification of the dielguide design is described which utilizes an anisotropic dielectric cone to improve the performance.
Keywords
Antenna feeds; Antennas and propagation; Aperture antennas; Dielectric losses; Lighting; Modal analysis; Optical refraction; Reflection; Reflector antennas; Shape;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium, 1985
Type
conf
DOI
10.1109/APS.1985.1149521
Filename
1149521
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