Cassegrain antenna

Cassegrain antenna

In telecommunications and radar, 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

ee also

* Cassegrain reflector an optical Cassegrain used in Telescopes

External links

* [http://www.qsl.net/g3pho/casseg.pdf Cassegrain subreflector design article]


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