Patent ID: 7680196
Filing Date: 2010-03-16
Classification: H04B

Abstract:
1. An array antenna transceiver for performing broadband transmission by a multicarrier, comprising: means for grouping all subcarriers into a plurality of subcarrier groups; and means for calibrating a transmission route for each group, wherein said means for calibrating a transmission route includes: a plurality of calibration signal demodulating means for demodulating a transmission route number and subcarrier number for calibration of a transmission route and outputting the demodulation results, demodulation result processing means for outputting a transmission route number, subcarrier number, and normalized demodulation symbol point (phase/amplitude information) by receiving demodulation results of calibration signals output from the calibration signal demodulating means and outputting calculated calibration coefficients by receiving demodulation results of calibration signals output from said calibration signal demodulating means, demodulation symbol area determining means for determining an area to which each demodulation result belongs on a previously divided I/Q coordinate plane by receiving a transmission route number, subcarrier number, and normalized demodulation symbol point (phase/amplitude information) output from said demodulation result processing means and outputting the determination result, calibration subcarrier selecting means for selecting one transmission route number and subcarrier number closest to the medium value in a area out of demodulation symbol point (phase/amplitude information) group classified every area output from said demodulation symbol area determining means and outputting the determination results, calibration control means for outputting a transmission route number and subcarrier number selected every area output from said calibration subcarrier selecting means and outputting a calibration mode change signal for changing calibration modes, and transmission baseband processing means for setting calibration coefficients of all subcarriers in all transmission routes by receiving calibration coefficients output from said demodulation result processing means and a transmission route number and subcarrier number classified into the same area output from calibration coefficients and generating a calibration signal in accordance with a calibration mode change signal supplied from said calibration control means, a transmission route to be calibrated, and subcarrier information.