Apparatus for calibrating in arrary antenna system and method thereof

摘要

An apparatus for correcting an error of an array antenna system according to an embodiment of the present invention is an apparatus for correcting errors of an array antenna system having a plurality of array antennas, A correction signal generator for generating a signal; An array RF transmitter for up-converting the transmission signal to an RF band and transmitting the up-converted signal to the plurality of array antennas; An error correction estimator for estimating a transfer function of the array RF transmitter by correlating the error correction signal with a received single frequency signal received through the array RF transmitter and extracting a filter coefficient using the estimated transfer function; And a complex filter for applying the filter coefficient to correct the error of the transmission signal and output the corrected transmission signal to the array RF transmitter.