Patent ID: 8050314

Claim:
A wireless communication apparatus, comprising: a plurality of antenna branches for transmitting and receiving a wireless communication signal; a calibration coefficient calculator for calculating a calibration coefficient for each frequency band, the calibration coefficient correcting an imbalance in phase and amplitude existing between the antenna branches; a coefficient storage memory for storing the calibration coefficient calculated for each frequency band; a calibration coefficient reader for reading the calibration coefficient of a frequency band of one of a transmission signal and a reception signal as a target to be calibrated; a calibration coefficient interpolator for interpolating a calibration coefficient of the frequency band if the coefficient storage memory stores no corresponding calibration coefficient of the frequency band of one of the transmission signal and the reception signal; and a calibration coefficient multiplier for multiplying one of the transmission signal and the reception signal by one of the calibration coefficient read from the coefficient storage memory by the calibration coefficient reader and the calibration coefficient interpolated by the calibration coefficient interpolator.