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Encyclopedia > Antenna feed

The antenna feed refers to the components between an antenna and an amplifier (HPA and LNB or LNA). A Yagi-Uda antenna An antenna or aerial is an electrical device designed to transmit or receive radio waves or, more generally, any electromagnetic waves. ... An amplifier is a device which changes a small movement into a larger movement. ... A low-noise block converter (LNB, for low-noise block, or sometimes LNC, for low-noise converter) is used in communications satellite (usually broadcast satellite) reception. ... The low noise amplifier (LNA) is a special type of electronic amplifier or amplifier used in communication systems to amplify very weak signals captured by an antenna. ...


For satellite communications the feed might consist of the Antenna Horn, Orthomode transducer, polarizator, Frequency diplexer, Waveguide, Waveguide switches, Rotary joint, etc. Look up waveguide in Wiktionary, the free dictionary. ...


 
 

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