Method and System for Characterizing an Array Antenna Using Near-Field Measurements

摘要

Near field array antenna calibration is performed using multiple probe element locations within the near field of an array antenna for each element of the array.

主权项

1. A method for calibrating an array antenna using near-field antenna measurements, the method comprising:
for a first antenna element in an antenna under test (AUT), obtaining a received signal for each of multiple known probe locations in a near-field of the AUT; combining the received signals to generate a combined signal for the first antenna element, wherein combining the received signals includes combining the signal in a manner that de-correlates multi-path in the combination result; and processing the combined signal to generate a calibration coefficient for the first AUT antenna element.