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General

After reading an interesting artikel about Quadrifilar Helical Antennas I got inspired and wanted to print one

The creation of this antenna described in detail at QFA Antenna. Models and simulations are available on GitHub: quadrifilar.

Test in : anechoic chamber qfa-9-and-10-in-anechoic-chamber

Printing and building

Follow instruction published here: https://sa0pej.wordpress.com/3d-print-and-build-qfa-antenna/

Version History

2024-05-05 First release
2024-05-06 Right hand helix was missing pins to mount base
2024-05-18 A side had 4mm too short leg in helix pairs

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QFA Antenna, 70cm Band

Model files

QfhAntenna-SmallBase.stl

QfhAntenna-SmallBase.stl

QfhAntenna-LargeBase.stl

QfhAntenna-LargeBase.stl

QfhAntenna-Fork.stl

QfhAntenna-Fork.stl

QfhAntenna-Helix.stl

QfhAntenna-Helix.stl

QfhAntenna-left-Helix.stl

QfhAntenna-left-Helix.stl

QfhAntenna-9.3mf

QfhAntenna-9.3mf

Model origin

License