Patent ID: 7990312

Claim:
A method of self-calibration of a plurality of calibration antennas comprising the steps of: (i) mounting the plurality of calibration antennas around an antenna array; (ii) selecting two calibration antennas to be calibrated that have a common area of the array in range of both calibration antennas, said selected two calibration antennas forming a pair of calibration antennas; (iii) selecting at least one radiating element from the array within range of the pair of calibration antennas; (iv) transmitting a known test signal from the one or more selected radiating elements; (v) measuring a received signal at each of the pair of calibration antennas; (vi) comparing the received signals at each of the pair of calibration antennas; and (vii) determining a correction coefficient for each calibration antenna of said pair of calibration antennas based on the received signals at the said pair of calibration antennas.