Patent ID: 11879924
Assignee: KEYSIGHT TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. The method of claim 8, wherein determining the actual offset of the array phase center of the antenna array comprises:
performing a loop procedure, wherein for each loop of the loop procedure:
assume an array offset at an offset location to be one of possible array offsets;
compensate the measured antenna patterns for probe gain and path loss difference of the probe antenna positioned at the plurality of near-field radii to provide compensated antenna patterns of the AUT based on the assumed array offset;
determine an estimated array offset based on the compensated antenna patterns; and
compare the assumed array offset and the estimated array offset to get an estimation deviation;

determining a minimum estimation deviation in all loops of the loop procedure based on the estimation deviations; and
selecting the assumed array offset of the loop corresponding to the minimum estimation deviation to be the actual array offset for the offset location of the array phase center.