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- Antenna_feed abstract "In telecommunications and electronics, an antenna feed refers to the components of an antenna which feed the radio waves to the rest of the antenna structure, or in receiving antennas collect the incoming radio waves, convert them to electric currents and transmit them to the receiver. Antennas typically consist of a feed and additional reflecting or directive structures (such as a parabolic dish or parasitic elements) whose function is to form the radio waves from the feed into a beam or other desired radiation pattern. In simple antennas the feed usually consists of the feed antenna (driven element), the part of the antenna which actually converts the radio frequency currents to radio waves or vice versa, and the feed line (transmission line), which connects the feed antenna with the receiver or transmitter. For example, in a rooftop Yagi television antenna, the feed consists of a dipole driven element, which converts the radio waves to an electric current, and a coaxial cable or twin lead transmission line which conducts the received signal from the driven element into the house to the television receiver. The rest of the antenna consists of rods called parasitic elements, which strengthen reception from a given direction.In more complex antenna systems the feed can be more complicated. The antenna feed is usually considered to be all the components between the beam-shaping part of the antenna and the receiver's first amplifier (called the RF front end, the LNB or LNA). For a transmitting antenna, the feed consists of everything after the last power amplifier, and might include an antenna tuner unit and impedance matching sections at the antenna. In a radar or satellite communications antenna the feed might consist of a feed horn, orthomode transducer, polarizer, frequency diplexer, waveguide, waveguide switches, rotary joint, etc.".
- Antenna_feed thumbnail Yagi_TV_antenna_1954.png?width=300.
- Antenna_feed wikiPageID "3866029".
- Antenna_feed wikiPageLength "2601".
- Antenna_feed wikiPageOutDegree "36".
- Antenna_feed wikiPageRevisionID "639335576".
- Antenna_feed wikiPageWikiLink Amplifier.
- Antenna_feed wikiPageWikiLink Amplifier_figures_of_merit.
- Antenna_feed wikiPageWikiLink Antenna_(radio).
- Antenna_feed wikiPageWikiLink Antenna_tuner.
- Antenna_feed wikiPageWikiLink Category:Antennas.
- Antenna_feed wikiPageWikiLink Coaxial_cable.
- Antenna_feed wikiPageWikiLink Communications_satellite.
- Antenna_feed wikiPageWikiLink Diplexer.
- Antenna_feed wikiPageWikiLink Dipole_antenna.
- Antenna_feed wikiPageWikiLink Driven_element.
- Antenna_feed wikiPageWikiLink Electronics.
- Antenna_feed wikiPageWikiLink Feed_line.
- Antenna_feed wikiPageWikiLink Horn_antenna.
- Antenna_feed wikiPageWikiLink Impedance_matching.
- Antenna_feed wikiPageWikiLink Low-noise_amplifier.
- Antenna_feed wikiPageWikiLink Low-noise_block_downconverter.
- Antenna_feed wikiPageWikiLink Orthomode_transducer.
- Antenna_feed wikiPageWikiLink Parabolic_reflector.
- Antenna_feed wikiPageWikiLink Passive_radiator.
- Antenna_feed wikiPageWikiLink Pivot_joint.
- Antenna_feed wikiPageWikiLink Polarizer.
- Antenna_feed wikiPageWikiLink RF_front_end.
- Antenna_feed wikiPageWikiLink Radar.
- Antenna_feed wikiPageWikiLink Radiation_pattern.
- Antenna_feed wikiPageWikiLink Radio_frequency.
- Antenna_feed wikiPageWikiLink Radio_wave.
- Antenna_feed wikiPageWikiLink Telecommunication.
- Antenna_feed wikiPageWikiLink Television_antenna.
- Antenna_feed wikiPageWikiLink Television_set.
- Antenna_feed wikiPageWikiLink Transmission_line.
- Antenna_feed wikiPageWikiLink Twin-lead.
- Antenna_feed wikiPageWikiLink Waveguide.
- Antenna_feed wikiPageWikiLink Yagi-Uda_antenna.
- Antenna_feed wikiPageWikiLink File:Radar_antenna_feed_waveguide.png.
- Antenna_feed wikiPageWikiLink File:Yagi_TV_antenna_1954.png.
- Antenna_feed wikiPageWikiLinkText "''feed''".
- Antenna_feed wikiPageWikiLinkText "Antenna feed".
- Antenna_feed wikiPageWikiLinkText "antenna feed".
- Antenna_feed wikiPageWikiLinkText "feed antenna".
- Antenna_feed wikiPageWikiLinkText "feed antennas".
- Antenna_feed wikiPageWikiLinkText "feed".
- Antenna_feed wikiPageWikiLinkText "feeders".
- Antenna_feed auto "yes".
- Antenna_feed date "December 2009".
- Antenna_feed wikiPageUsesTemplate Template:Antennas.
- Antenna_feed wikiPageUsesTemplate Template:Unreferenced.
- Antenna_feed wikiPageUsesTemplate Template:Wireless-stub.
- Antenna_feed subject Category:Antennas.
- Antenna_feed type Component.
- Antenna_feed comment "In telecommunications and electronics, an antenna feed refers to the components of an antenna which feed the radio waves to the rest of the antenna structure, or in receiving antennas collect the incoming radio waves, convert them to electric currents and transmit them to the receiver.".
- Antenna_feed label "Antenna feed".
- Antenna_feed sameAs Q4771256.
- Antenna_feed sameAs m.0b40pv.
- Antenna_feed sameAs Q4771256.
- Antenna_feed wasDerivedFrom Antenna_feed?oldid=639335576.
- Antenna_feed depiction Yagi_TV_antenna_1954.png.
- Antenna_feed isPrimaryTopicOf Antenna_feed.