CP Antennas for Direction Finding

Hey Everyone,

I’m looking to create an antenna array for the KrakenSDR to locate a GPS Jammer. I would like to reduce the physical size of my antenna array and was looking at using RHCP antennas (Iridium/GPS/GLONASS Passive Antenna - GPS-16838 - SparkFun Electronics).

Can I use CP Antennas for Direction Finding or do I have to use Antennas with Linear Polarization?


Yes, you can use circularly polarized antennas, but you’ll want to make them as low gain as possible. With patch antennas this is usually done by reducing the size of the ground plane.