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  2. Inverted vee antenna - Wikipedia

    en.wikipedia.org/wiki/Inverted_vee_antenna

    An inverted vee antenna is a type of antenna similar to a horizontal dipole, but with the two sides bent down towards the ground, typically creating a 120- or 90-degree angle between the dipole legs. It is typically used in areas of limited space as it can significantly reduce the ground foot print of the antenna without significantly impacting ...

  3. Dipole antenna - Wikipedia

    en.wikipedia.org/wiki/Dipole_antenna

    German physicist Heinrich Hertz first demonstrated the existence of radio waves in 1887 using what we now know as a dipole antenna (with capacitative end-loading). On the other hand, Guglielmo Marconi empirically found that he could just ground the transmitter (or one side of a transmission line, if used) dispensing with one half of the antenna, thus realizing the vertical or monopole antenna.

  4. Antenna types - Wikipedia

    en.wikipedia.org/wiki/Antenna_types

    It is somewhat like a monopole version of an inverted 'V' dipole. 'T' antenna Consists of a long horizontal wire crossing the gap between two towers, with a vertical wire attached to the center of the horizontal wire, hanging down from its center; the dangling vertical wire is the radiating part of the antenna.

  5. G5RV antenna - Wikipedia

    en.wikipedia.org/wiki/G5RV_antenna

    The antenna can be erected as horizontal dipole, as sloper, or an inverted-V antenna. With a transmatch , (antenna tuner) it can operate on all HF amateur radio bands (3.5–30 MHz ). [ 5 ] [ 6 ]

  6. Near vertical incidence skywave - Wikipedia

    en.wikipedia.org/wiki/Near_Vertical_Incidence...

    Depending on the specific requirements, various antennas (i.e. Sloper, T2FD, Dipole) can be used for NVIS communication, with horizontal dipoles or inverted V dipoles at about ⁠ 1 / 5 ⁠ wavelength above ground giving the best results on transmit and at about ⁠ 1 / 6 ⁠ wavelength on receive, according to military sources and an extensive ...

  7. Shortwave broadband antenna - Wikipedia

    en.wikipedia.org/wiki/Shortwave_broadband_antenna

    If the several dipole pairs are near the same length, the antenna will show a continuous range of matched-impedance frequencies wider than any one dipole. If the dipole pairs' lengths have wider size differences, the fan dipole will show multiple distinct resonant frequencies, at least one resonance for each pair.

  8. Radiation pattern - Wikipedia

    en.wikipedia.org/wiki/Radiation_pattern

    An omnidirectional antenna radiates equal signal strength in all horizontal directions, so its horizontal pattern is just a circle. It is a fundamental property of antennas that the receiving pattern (sensitivity as a function of direction) of an antenna when used for receiving is identical to the far-field radiation pattern of the antenna when ...

  9. Omnidirectional antenna - Wikipedia

    en.wikipedia.org/wiki/Omnidirectional_antenna

    The quarter-wave monopole and half-wave dipole both have vertical radiation patterns consisting of a single broad lobe with maximum radiation in horizontal directions, so they are popular. The quarter-wave monopole, the most compact resonant antenna, may be the most widely used antenna in the world.