Patent ID: 11874386
Assignee: COBHAM ADVANCED ELECTRONIC SOLUTIONS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. An electronic system, comprising:
a plurality of radio frequency (RF) antennas configured for receiving an input RF signal having an input polarization, the plurality of RF antennas including:
a first RF antenna having a first polarization and configured for outputting a first antenna signal; and
a second RF antenna having a second polarization and configured for outputting a second antenna signal, the second polarization being orthogonal to the first polarization;

a first converter configured for converting the first antenna signal to a first optical signal;
a first optical channel configured for passing the first optical signal and introducing a first delay;
a second converter configured for converting the first optical signal to a first RF signal; and
a polarization unit configured for determining an amplitude ratio and a phase difference between the first RF signal and a second RF signal associated with the second antenna signal, and determining a polarization angle of the input RF signal received by the plurality of RF antennas based on the amplitude ratio and the phase difference.