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- Helical_antenna abstract "A helical antenna is an antenna consisting of a conducting wire wound in the form of a helix. In most cases, helical antennas are mounted over a ground plane. The feed line is connected between the bottom of the helix and the ground plane. Helical antennas can operate in one of two principal modes — normal mode or axial mode. In the normal mode or broadside helix, the dimensions of the helix (the diameter and the pitch) are small compared with the wavelength. The antenna acts similarly to an electrically short dipole or monopole, and the radiation pattern, similar to these antennas is omnidirectional, with maximum radiation at right angles to the helix axis. The radiation is linearly polarised parallel to the helix axis. These are used for compact antennas for portable and mobile two-way radios, and for UHF television broadcasting antennas.In the axial mode or end-fire helix, the dimensions of the helix are comparable to a wavelength. The antenna functions as a directional antenna radiating a beam off the ends of the helix, along the antenna's axis. It radiates circularly polarised radio waves. These are used for satellite communication.".
- Helical_antenna thumbnail Traqueur_acquisition.JPG?width=300.
- Helical_antenna wikiPageExternalLink helix.php.
- Helical_antenna wikiPageID "465078".
- Helical_antenna wikiPageLength "10100".
- Helical_antenna wikiPageOutDegree "61".
- Helical_antenna wikiPageRevisionID "700489052".
- Helical_antenna wikiPageWikiLink Antenna_(radio).
- Helical_antenna wikiPageWikiLink Capacitance.
- Helical_antenna wikiPageWikiLink Category:Helices.
- Helical_antenna wikiPageWikiLink Category:Radio_frequency_antenna_types.
- Helical_antenna wikiPageWikiLink Circular_polarization.
- Helical_antenna wikiPageWikiLink Citizens_band_radio.
- Helical_antenna wikiPageWikiLink Communications_satellite.
- Helical_antenna wikiPageWikiLink Copper.
- Helical_antenna wikiPageWikiLink Dipole_antenna.
- Helical_antenna wikiPageWikiLink Directional_antenna.
- Helical_antenna wikiPageWikiLink Electrical_impedance.
- Helical_antenna wikiPageWikiLink Electrically_short.
- Helical_antenna wikiPageWikiLink Feed_line.
- Helical_antenna wikiPageWikiLink Fiberglass.
- Helical_antenna wikiPageWikiLink Frequency.
- Helical_antenna wikiPageWikiLink Gain_(electronics).
- Helical_antenna wikiPageWikiLink Ground_plane.
- Helical_antenna wikiPageWikiLink Heat-shrink_tubing.
- Helical_antenna wikiPageWikiLink Helix.
- Helical_antenna wikiPageWikiLink Impedance_matching.
- Helical_antenna wikiPageWikiLink Inductance.
- Helical_antenna wikiPageWikiLink Linear_polarization.
- Helical_antenna wikiPageWikiLink Main_lobe.
- Helical_antenna wikiPageWikiLink Microwave.
- Helical_antenna wikiPageWikiLink Monopole_antenna.
- Helical_antenna wikiPageWikiLink Omnidirectional_antenna.
- Helical_antenna wikiPageWikiLink Polarization_(waves).
- Helical_antenna wikiPageWikiLink Radiation_pattern.
- Helical_antenna wikiPageWikiLink Radio.
- Helical_antenna wikiPageWikiLink Resonance.
- Helical_antenna wikiPageWikiLink Right-hand_rule.
- Helical_antenna wikiPageWikiLink Rubber_ducky_antenna.
- Helical_antenna wikiPageWikiLink Screw_thread.
- Helical_antenna wikiPageWikiLink Single-sideband_modulation.
- Helical_antenna wikiPageWikiLink Standing_wave.
- Helical_antenna wikiPageWikiLink Stripline.
- Helical_antenna wikiPageWikiLink Telstar.
- Helical_antenna wikiPageWikiLink Tracking_(hunting).
- Helical_antenna wikiPageWikiLink Transmission_line.
- Helical_antenna wikiPageWikiLink Traveling-wave_antenna.
- Helical_antenna wikiPageWikiLink Two-way_radio.
- Helical_antenna wikiPageWikiLink Very_high_frequency.
- Helical_antenna wikiPageWikiLink Waterproofing.
- Helical_antenna wikiPageWikiLink Wavelength.
- Helical_antenna wikiPageWikiLink Whip_antenna.
- Helical_antenna wikiPageWikiLink File:Hammer_Ace_SATCOM_Antenna.jpg.
- Helical_antenna wikiPageWikiLink File:Helical_UHF_TV_broadcast_antenna.jpg.
- Helical_antenna wikiPageWikiLink File:Helical_antenna.jpg.
- Helical_antenna wikiPageWikiLink File:Helical_antenna_principle.png.
- Helical_antenna wikiPageWikiLink File:Traqueur_acquisition.JPG.
- Helical_antenna wikiPageWikiLink File:Uhf_cb_wit_rubber_ducky_exposed.jpg.
- Helical_antenna wikiPageWikiLinkText "''helical elements''".
- Helical_antenna wikiPageWikiLinkText "Helical (axial mode)".
- Helical_antenna wikiPageWikiLinkText "Helical Antennas".
- Helical_antenna wikiPageWikiLinkText "Helical antenna".
- Helical_antenna wikiPageWikiLinkText "Helical".
- Helical_antenna wikiPageWikiLinkText "helical antenna".
- Helical_antenna wikiPageWikiLinkText "helical".
- Helical_antenna wikiPageWikiLinkText "normal-mode helix".
- Helical_antenna wikiPageWikiLinkText "quadrifilar helix antenna".
- Helical_antenna wikiPageWikiLinkText "spiral high-band antennas".
- Helical_antenna wikiPageUsesTemplate Template:Antenna_Types.
- Helical_antenna wikiPageUsesTemplate Template:As_of.
- Helical_antenna wikiPageUsesTemplate Template:Distinguish.
- Helical_antenna wikiPageUsesTemplate Template:No_footnotes.
- Helical_antenna subject Category:Helices.
- Helical_antenna subject Category:Radio_frequency_antenna_types.
- Helical_antenna hypernym Antenna.
- Helical_antenna type Building.
- Helical_antenna type Thing.
- Helical_antenna comment "A helical antenna is an antenna consisting of a conducting wire wound in the form of a helix. In most cases, helical antennas are mounted over a ground plane. The feed line is connected between the bottom of the helix and the ground plane. Helical antennas can operate in one of two principal modes — normal mode or axial mode. In the normal mode or broadside helix, the dimensions of the helix (the diameter and the pitch) are small compared with the wavelength.".
- Helical_antenna label "Helical antenna".
- Helical_antenna differentFrom Spiral_antenna.
- Helical_antenna sameAs Q1936665.
- Helical_antenna sameAs Спіральная_антэна.
- Helical_antenna sameAs Wendelantenne.
- Helical_antenna sameAs Antena_helicoidal.
- Helical_antenna sameAs آنتن_مارپیچی.
- Helical_antenna sameAs Antenne_hélice_axiale.
- Helical_antenna sameAs Պարուրաձև_անտենաներ.
- Helical_antenna sameAs ヘリカルアンテナ.
- Helical_antenna sameAs Antena_śrubowa.
- Helical_antenna sameAs m.02cs26.
- Helical_antenna sameAs Спиральная_антенна.
- Helical_antenna sameAs Q1936665.
- Helical_antenna wasDerivedFrom Helical_antenna?oldid=700489052.
- Helical_antenna depiction Traqueur_acquisition.JPG.
- Helical_antenna isPrimaryTopicOf Helical_antenna.