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Antenna Circular Polarization
The use of circular polarization at one end only gives a loss of about -3dB
post 20 Feb 2024
Helix Antennas Links →
Long range wifi with helical antennas
Helicals can be made with only household parts, a hot glue gun and a soldering iron
Helical antenna Wikipedia
This 50 ohm impedance antenna allows, when powered with 25-100W of RF in SSB, to reach satellites with Molniya orbit like AO-40 and AO-10
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
Helical Antenna
Axial-mode Helical Antenna
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Helicals can be made with only household parts, a hot glue gun and a soldering iron
This 50 ohm impedance antenna allows, when powered with 25-100W of RF in SSB, to reach satellites with Molniya orbit like AO-40 and AO-10
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
Axial-mode Helical Antenna
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane
Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m
Calculo da Antena Bazooka A double bazooka antenna is a combination that has a complete coaxial wave multiplied by its velocity factor and a total end-to-end length of 1/4 wave for each side affected by another driver shortening facto