phase antenna

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Antennas
  • W8JK Beam Antenna - The W8JK is a famous and effective DX antenna, first built by John Kraus, W8JK, in 1937. A Beam antenna with two parallel dipoles driven with opposite phase, with a close spacing of an eighth of a wavelength.
    [ Hits: 1850 | Votes: 6 | Rating: 7.67 ]
Antennas : 20M
  • Directional Helical Antenna - This antenna is intended for the 20-meter Band. There are two Voltage Fed Helical Dipoles, made with 2 slinky that fed with phase shift in 90 degree
    [ Hits: 470 | Votes: 1 | Rating: 8.00 ]
Antennas : 2M
  • Hybrid LFA Yagi Oblong antennas - A project for a 144 MHz hybrid LFA - Oblong yagi antenna made based on YU7XL design by G1HZN
    [ Hits: 569 | Votes: 0 | Rating: 0.00 ]
Antennas : 80M
  • Phased Delta Loops - An interesting article with many technical details on a phased delta loop array for 80 meters band includes pictures of antenna relays
    [ Hits: 687 | Votes: 3 | Rating: 10.00 ]
Antennas : Antenna Calculators
  • Planar Phased Array Antenna Calculator  updated Priority listing - This calculator computes the far zone radiation power pattern for a planar phased array antenna. The directivity, half power beamwidth and beamwidth between first nulls is also computed.
    [ Hits: 696 | Votes: 18 | Rating: 3.62 ]
Antennas : Array Antennas : Delta loop Antennas : Four Square Antennas : Quad
  • Shrunken 40 Meter Phased Quads - A 2 element small footprint 40 meter phased, reversible, downsized quad array antenna.
    [ Hits: 622 | Votes: 3 | Rating: 9.33 ]
Antennas : Receiving
  • Double Half-Delta Loop RX Antenna - This wire antenna was developed to offer for a small, low-band, ground independent directional receiving antenna, it requires only two support poles. It is basically composed by two interconnected half delta loops and is better than a single flag or EWE, and almost as good as two phased EWE in the same space.
    [ Hits: 671 | Votes: 0 | Rating: 0.00 ]
Antennas : Theory Antennas : VHF UHF
  • Simple VHF UHF Ground Plane  updated - Simple VHF-UHF Ground Plane antennas for under 20 dollars, even in phased array configuration.
    [ Hits: 691 | Votes: 2 | Rating: 6.00 ]
Antennas : Vertical
  • Two Element Phased Verticals - Two 40 meter phased vertical antennas, project, pictures and description by W4NFR
    [ Hits: 711 | Votes: 2 | Rating: 6.00 ]
Manufacturers : Antenna Parts : Aluminium Tubing
  • Antenna Engineering - Antenna Engineering specialise in producing a range of high quality aluminium HF verticals ranging from mono band single element verticals to multi element phased arrays.
    [ Hits: 988 | Votes: 1 | Rating: 10.00 ]
Technical Reference : QRM Eliminator
  • XPhase - Interference reduction - The function of the XPhase is based on the fact that the interfering signal, received by an auxiliary antenna, is added phase-shifted to the signal received from the main antenna. When the phase-shift is more or less 180°, the interfering signal is canceled out.
    [ Hits: 251 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Radio Frequency Interference : Noise Reduction
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