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2. Dipole antenna - Wikipedia

   en.wikipedia.org/wiki/Dipole_antenna

   The G5RV antenna is a dipole antenna fed indirectly, through a carefully chosen length of 300 Ω or 450 Ω twin lead, which acts as an impedance matching network to connect (through a balun) to a standard 50 Ω coaxial transmission line. The sloper antenna is a slanted vertical dipole antenna attached to the top of a single tower. The element ...

3. Curtain array - Wikipedia

   en.wikipedia.org/wiki/Curtain_array

   Curtain arrays were originally developed during the 1920s and 1930s when there was a lot of experimentation with long distance shortwave broadcasting. The underlying concept was to achieve improvements in gain and/or directionality over the simple dipole antenna, possibly by folding one or more dipoles into a smaller physical space, or to arrange multiple dipoles such that their radiation ...

4. G5RV antenna - Wikipedia

   en.wikipedia.org/wiki/G5RV_antenna

   Louis Varney (G5RV) invented this antenna in 1946. [4] It is very popular in the United States. [5] 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]

5. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   Inverted-'V' antenna When the two arms of a dipole are individually straight, but bent towards each other in a 'V' shape, at an angle visibly less than 180°, the dipole is called a 'V' antenna, and when the dipole's far ends are staked closer to the ground than the center, it is called an inverted-'V' antenna. The inverted-'V' is popular since ...

6. Clansman (military radio) - Wikipedia

   en.wikipedia.org/wiki/Clansman_(military_radio)

   The PRC320 can be used with a number of different Clansman antennas that are supplied with the set; a 2.4m whip antenna is supplied for portable manpack operation using HF groundwave communication with a range of up to 30 km (19 mi). Alternatively a dipole antenna can be used for HF skywave operation with a range of up to 320 km (200 mi).

7. T2FD antenna - Wikipedia

   en.wikipedia.org/wiki/T2FD_antenna

   A 20-meter-long T²FD antenna, covering the 5-30 MHz band. The Tilted Terminated Folded Dipole (T²FD, T2FD, or TTFD) or Balanced Termination, Folded Dipole (BTFD) - also known as W3HH antenna - is a general-purpose shortwave antenna developed in the late 1940s by the United States Navy.