The uplink side of [Tech Minds]’ antenna is a helical design, with three-and-a-half turns of heavy copper wire and a tuning section of copper strapping that attaches directly to an N-type connector.

[Dereksgc] puts that reputation to the test by building a helical WiFi antenna — and if that weren’t enough — he also subjects it to a field test. In a real field, is there any other way?

A deployable spring antenna design with the ability to stow to ¼ its length, survive launch, match the performance of rigid antenna counterparts, and scale to different frequencies, brings new ...