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7340248 Calibration apparatus  
In a calibration apparatus, which calibrates the phases of main signals input to each of the antenna elements of an array antenna, a calibration signal generation portion generates calibration...
7136629 Radio device, radio device calibration system, calibration method, and calibration program  
An adaptive array radio apparatus ( 1010 ) includes an A/D converter ( 1200.1–1200. n ) receiving respective signals from an array antenna for conversion into a digital signal from an analog...
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