Phased array device and calibration method therefor

The invention provides a phased array device and a calibration method therefor. The calibration method, performed on a phased array device including channel elements coupled in parallel by a transmission line, has the steps of: obtaining channel responses corresponding to the channel elements throug...

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Bibliographic Details
Main Authors ZHAN JING-HONG CONAN, NICOLSON SEAN TIMOTHY, LIANG CHUANKANG
Format Patent
LanguageChinese
English
Published 11.09.2013
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The invention provides a phased array device and a calibration method therefor. The calibration method, performed on a phased array device including channel elements coupled in parallel by a transmission line, has the steps of: obtaining channel responses corresponding to the channel elements through the transmission line, and each of the channel responses is obtained when one of the channel elements is turned on, and the rest of the channel elements are turned off; calculating a characteristic value corresponding to the transmission line based on the obtained channel responses of the channel elements; and adjusting a channel parameter of one of the channel elements based on the characteristic value of the transmission line. The embodiments of the invention can perform calibration for all phase positions of each channel element in a system and gain mismatch values.
Bibliography:Application Number: CN201210448771