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Last modified: Thu, 17 Sep 2020
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La Fabrique Circulaire Helical

VNA measurements

Image: photo-lafabriquecirculaire-helical.jpg

Image: vna-lafabriquecirculaire-helical.png

Just like the Aomway helical, the matching is good, but the graph suggests that this antenna has multiple resonant modes.

Anechoic chamber measurements

Image: ac-lafabriquecirculaire-helical-h.png

The solid line is the correct polarization, the dashed line is the opposite polarization. Peak gain is about 10 dB. Good radiation pattern and very decent axial ratio in all relevant directions.

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