feed horn

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Definition of feed horn in English English dictionary
feed horns: plural form of feed horn
feedhorn: A horn antenna used to convey electromagnetic waves between the transceiver and the reflector
feedhorn: The device on a radio telescope that focuses the data from the dish to send it to the receiver
feedhorn: {i} accessory located at the focal point of a satellite dish or paraboloidal antenna which receives radio signals and conveys them to the antenna
feedhorn: That part of a parabolic or grid reflector antenna which contains the driven element
feedhorn: A device resembling a horn that emits radio waves in a concentrated beam or collects and focuses radio waves that are incident on its aperture In a receiving system it collects microwave signals reflected from the surface of the antenna In a transmitting system it directs microwave signals onto the reflector surface for focussing into a narrow beam aimed at the satellite The feed is mounted at the focus of the parabolic reflector It is usually designed to match a particular antenna geometry (F/D ratio)