A method that allows confirmation of the expected phase shift of a radio frequency signal emitted from an antenna array

摘要

Confirmation of expected phase shifts of radio frequency (RF) signals emitted from each element of an antenna array, such as a phased array antenna used to provide the directional RF signal radiation pattern required for beamforming. How to enable. The resulting received RF signal is monitored as the phase of the RF signal transmitted via the antenna elements of the antenna array shifts, eg, in a stepwise fashion. Following detection of the phase shift, a sample of the received RF signal is acquired for subsequent analysis, for example by comparison with one or more expected signal phase differences characterizing the directivity of the transmitted signal. Stored.