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.

The antenna normally operates in a vertical configuration. It looks like it might be simple to make some version of this without anything exotic. Let us know if you try! Helical antennas aren’t ...

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 ...