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- Active_antenna abstract "An active antenna is an antenna that contains active electronic components. This allows the construction of antennas of limited size and / or wide frequency range. Most active antennas use antenna parts of minimal conducting area, e.g., a small whip, connected to the active component (usually a FET). The signal attenuation caused by the antenna-size-to-wavelength mismatch is compensated by an active circuit. The active circuit consists of an impedance translating stage and an optional amplification stage. This arrangement is especially useful for constructing compact low frequency antennas which, due to budgetary, spatial, or practical requirements (e.g., installation in vehicles), must be downsized. Low frequency signal wavelengths range from one to ten kilometers.Power for the active components may be supplied by batteries, a filtered power supply, or through the signal feeder itself (phantom power). Antennas containing active impedance translating and optionally amplifying stages are usually used only for receiving, since operation of such stages is unidirectional.".
- Active_antenna wikiPageID "27753548".
- Active_antenna wikiPageLength "1638".
- Active_antenna wikiPageOutDegree "11".
- Active_antenna wikiPageRevisionID "630462147".
- Active_antenna wikiPageWikiLink Antenna_(radio).
- Active_antenna wikiPageWikiLink Battery_(electricity).
- Active_antenna wikiPageWikiLink Category:Antennas_(radio).
- Active_antenna wikiPageWikiLink Category:Radio_electronics.
- Active_antenna wikiPageWikiLink Category:Television_terminology.
- Active_antenna wikiPageWikiLink Field-effect_transistor.
- Active_antenna wikiPageWikiLink Low_frequency.
- Active_antenna wikiPageWikiLink Phantom_power.
- Active_antenna wikiPageWikiLink Power_supply.
- Active_antenna wikiPageWikiLink Smart_antenna.
- Active_antenna wikiPageWikiLink Wavelength.
- Active_antenna wikiPageWikiLinkText "Active antenna".
- Active_antenna wikiPageWikiLinkText "active antenna".
- Active_antenna hasPhotoCollection Active_antenna.
- Active_antenna wikiPageUsesTemplate Template:Reflist.
- Active_antenna subject Category:Antennas_(radio).
- Active_antenna subject Category:Radio_electronics.
- Active_antenna subject Category:Television_terminology.
- Active_antenna hypernym Antenna.
- Active_antenna type Building.
- Active_antenna type Circuit.
- Active_antenna comment "An active antenna is an antenna that contains active electronic components. This allows the construction of antennas of limited size and / or wide frequency range. Most active antennas use antenna parts of minimal conducting area, e.g., a small whip, connected to the active component (usually a FET). The signal attenuation caused by the antenna-size-to-wavelength mismatch is compensated by an active circuit.".
- Active_antenna label "Active antenna".
- Active_antenna sameAs m.0cc5sf5.
- Active_antenna sameAs Aktiv_antenn.
- Active_antenna sameAs Q4677546.
- Active_antenna sameAs Q4677546.
- Active_antenna wasDerivedFrom Active_antenna?oldid=630462147.
- Active_antenna isPrimaryTopicOf Active_antenna.