circular polar

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circular polar

18 links

Antennas : 2M

  • The Cycloid Dipole Antenna - A 2 meter antenna made of copper tubes, offering circular polarization
    [ Hits: 1934 | Votes: 15 | Rating: 7.2 ]
Antennas : 70cm
  • Quadrifilar Helix antenna for 436 MHz - This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB.
    [ Hits: 3887 | Votes: 4 | Rating: 4.5 ]
  • Cross-Yagi 10el Antenna for 70cm - 10 Elements Cross-Yagi Antenna for 433 MHz. The base of the 10el antenna is the recalculated RA6FOO antenna.Circular polarization is realized - by a phasing quarter-wave line, matching of horizontal and vertical polarization antennas
    [ Hits: 173 | Votes: 6 | Rating: 8.83 ]
Antennas : Antenna Calculators
  • Helical Antenna Design Calculator  updated - Helical antennas invented by John Kraus give a circular polarized wave. They are one of the easiest to design. Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelengt
    [ Hits: 2158 | Votes: 16 | Rating: 6.63 ]
Antennas : Helical
  • Helical Feed Antennas - Helical antennas have long been popular in applications from VHF to microwaves requiring circular polarization, since they have the unique property of naturally providing circularly polarized radiation. Paul Wade W1GHZ
    [ Hits: 1917 | Votes: 2 | Rating: 3 ]
  • Helical Antennas -Theory - Helical antenna or helix antenna is the antenna in which the conducting wire is wound in helical shape and connected to the ground plate with a feeder line. It is the simplest antenna, which provides circularly polarized waves.
    [ Hits: 137 | Votes: 0 | Rating: 0 ]
Antennas : J-Pole
  • T-Hunting Antennas  pop - 4 Element Cubical Quad, Yagis, LZA Circular Quad, Shrunken Quad , quarter wave, J-Pole, beam mounting , changing polarity
    [ Hits: 29350 | Votes: 26 | Rating: 5.01 ]
Antennas : Lindenblad Antennas : Patch
  • The Basics of Patch Antennas - This article explores the basic concepts of patch antennas. Topics include principles of operation, impedance matching, radiation pattern, circular polarization, bandwidth, efficiency, alternative feed types, stacked patches and higher mode behavior.
    [ Hits: 803 | Votes: 1 | Rating: 9 ]
Antennas : Receiving
  • Archimedean Spiral Antenna for RTLSDR - Dodgy plans to make Archimedean spiral antenna for RTLSDR software defined radio receiver. Made of two equal lengths of coaxial cable seems to be the easiest circularly polarized antenna to make that will cover a broad range of the rtlsdr dongles E4000 tuners
    [ Hits: 1031 | Votes: 2 | Rating: 10 ]
Antennas : Satellite
  • Types of Antennas for Satellites - What type of antenna should I get? Well, the best type of antenna for working the OSCAR satellites are circular polarized antennas
    [ Hits: 4836 | Votes: 3 | Rating: 4.33 ]
  • Eggbeater II Omni LEO Antennas - Presented here is a high-performance, circularly polarized omni-directional antenna that is easy to build, easy to tune, inexpensive, and will work all the mode J Low Earth Orbit (LEO) satellites
    [ Hits: 2903 | Votes: 2 | Rating: 8.5 ]
  • Taming the Quadrifilar Helical Antenna - The Quadrifilar Helical antenna provides circular polarization and complete hemispherical reception, which is precisely what is needed to receive the polar orbiting weather satellites, and as a 2 meter antenna it will receive horizontal, vertical and clockwise circular polarization.
    [ Hits: 374 | Votes: 0 | Rating: 0 ]
  • EggBeater Antenna for VHF UHF - This antenna was conceived mainly for high-speed digital transmission via satellite. The antenna is made of two full waves loops , mounted at right angles to each other. Then coupled together, 90 degrees out of phase over a horizontal circular reflector. With this configuration the antenna is omni directional and circularly polarized.
    [ Hits: 226 | Votes: 0 | Rating: 0 ]
Antennas : Theory
  • Understanding Antenna Polarization - What is antenna polarization, and why does it matter. Horizontal versus Vertical versus Circular polarization. Undestanding how antennas perform better with different polarizations.
    [ Hits: 169 | Votes: 1 | Rating: 2 ]
Antennas : VHF UHF
  • The Skew-Planar Wheel Antenna - This is a very useful aerial design,forgotten for 40 years. This antenna offer a low omnidirectional pattern and has circular polarization. Can be used as a beacon antenna and simulations are for U-VHF and upper
    [ Hits: 607 | Votes: 3 | Rating: 4 ]
Antennas : WiFi
  • Cloverleaf Antenna - Cloverleaf antenna is a circular polarized antenna which is way better than the cheap dipole antenna that comes with video transmitters and receivers. The Cloverleaf is a closed loop antenna which the signal and ground wires are connected. The cloverleaf antenna has 3 loops at 120 degree apart, and they are titled at 45 degree to horizontal plane.
    [ Hits: 64 | Votes: 0 | Rating: 0 ]
Antennas : Yagi
  • Circular polarized yagi - OZ2OE Technical Home Page - Building a circular polarized yagi
    [ Hits: 1301 | Votes: 1 | Rating: 1 ]

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