ARRAY ANTENNA RECEIVING APPARATUS AND METHOD FOR C

专利名称：ARRAY ANTENNA RECEIVING APPARATUS

AND METHOD FOR CALIBRATING THE SAME

发明人：AZUMA, Tomohiro, NEC Corporation申请号：EP019729.6申请日：20011026公开号：EP13350A1公开日：20030813

专利附图：

摘要：A calibration method, which allows calibration with high precision and which canperform calibration normally even when a specific radio receiving portion has a problem,and an array antenna receiving apparatus using the method. The array antenna receiving

apparatus multiplexes calibration signals having predetermined symbol patterns from amultiplexing circuit (103) to signals received by array antennas (101) and inputs theresults to radio receiving portions (104). The calibration signals having passed throughthe radio receiving portions are extracted by a calibration signal extracting portion (110),and an SIR detecting portion (111) determines one of the radio receiving portions havingthe best receiving quality as a reference branch based on the calibration signals. Acalibration signal processing portion (109) corrects receiving-oriented patterns by usingthe phase differences and amplitude ratios between the calibration signal having passedthrough the obtained reference branch and the calibration signals having passed throughthe other radio receiving portions.

申请人：NEC Corporation

地址：7-1, Shiba 5-chome Minato-ku, Tokyo 108-8001 JP

国籍：JP

代理机构：Gill, David Alan

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