| 摘要 |
PROBLEM TO BE SOLVED: To reduce the scale of hardware and to precisely achieve calibration, regardless of the number of array antennas and the numbers of elements of individual array antennas in a radio device receiving desired reception waves through array antennas. SOLUTION: The radio device is provided with a first calibration means for correcting deflections of characteristics of a plurality of specific branches out of a plurality of branches including elements of array antennas individually and a second calibration means for correcting deflections of characteristics of branches other than the plurality of specific branches out of the plurality of branches on the basis of a radio frequency signal received through a single reference branch corresponding to one of the plurality of specific branches. COPYRIGHT: (C)2005,JPO&NCIPI
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