Cassegrain antenna

From Biocrawler, the free encyclopedia.

In telecommunication, a Cassegrain antenna is an antenna in which the feed radiator is mounted at or near the surface of a concave main reflector and is aimed at a convex secondary reflector slightly inside the focus of the main reflector.

Note 1: Energy from the feed unit illuminates the secondary reflector, which reflects it back to the main reflector, which then forms the desired forward beam.

Note 2: The Cassegrain antenna design is adapted from optical telescope technology and allows the feed radiator to be more easily supported.

Source: from Federal Standard 1037C

Links

• Cassegrain subreflector design article (http://www.qsl.net/g3pho/casseg.pdf)

Wikipedia (http://en.wikipedia.org/wiki/Main_Page) Cassegrain_antenna (http://en.wikipedia.org/wiki/Cassegrain_antenna) version history (http://en.wikipedia.org/w/index.php?title=Cassegrain_antenna&action=history) GNU Free Documentation Lizenz (http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License) CC-by-sa (http://creativecommons.org/licenses/by-sa/2.5/)

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