Direction Finding Using a Single Electrically-Small Electromagnetic Field Sensing Device

Abstract

A system for direction finding comprising: a single electrically-small radio frequency (ESRF) device configured to measure an amplitude of an incoming RF signal; a docking stage configured to rotate about a center axis, wherein the ESRF device is mounted to the docking stage such that with each rotation of the docking stage, the ESRF device passes through a plurality of discrete rotational positions so as to replicate a circular array of ESRF devices; and a processor configured to calculate an angle of arrival (AoA) of the incoming signal based on the measured amplitude of the incoming RF signal at each of the plurality of rotational positions.

Dependencies are inferred from the claim text.