terminated antennas

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terminated antennas

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Antennas : Dipole

  • Folded dipole antennas: terminated vs un-terminated - As the name suggests, it is simply a dipole with the tips folded towards each other. In this case, a full-wave dipole. The span of a standard folded dipole is aprox 0,5 lambda. In this article the author investigate on differences between un-terminated vs terminated folded dipole antennas.
    [ Hits: 493 | Votes: 9 | Rating: 6.78 ]
Antennas : End-Fed
  • TEFV Terminated End Fed Vee Antenna - The Terminated End Fed Vee Antenna (TEFV) is a travelling wave antenna with constant current distribution. Unlike traditional resonant antennas, TEFV operates without standing waves, using a terminating resistor for broadband efficiency. With a combination of vertical and horizontal polarization, it offers wide bandwidth from 1.8 MHz to 30 MHz, eliminating the need for a tuner. Key components include a 9:1 unun transformer and a 500-ohm terminating resistor. Grounding and counterpoise enhance performance, and it can handle power losses of up to 30%. TEFV provides an effective, versatile antenna solution for amateur radio and broadcast applications.
    [ Hits: 183 | Votes: 2 | Rating: 6.5 ]
Antennas : Rhombic
  • Rhombic Antennas - Description and simulation of two types of rhombic antennas, using the software 4Nec2: the simple bi-directional and the terminated directional rhombic antenna
    [ Hits: 840 | Votes: 1 | Rating: 10 ]
Technical Reference : Preamplifiers
  • Tri-Mode Buffer Amplifier Box - The TMB-1 is an RF amplifier unit / receiving accessory that can be used with a low-impedance broadband loop, a high-impedance terminated loop (such as a Pennant, Flag, or Kaz Delta), and whip (telescoping rod) antennas.
    [ Hits: 963 | Votes: 1 | Rating: 1 ]
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