Antenna system calibration
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United States of America Patent
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Dec 25, 2018
Grant Date -
Nov 9, 2017
app pub date -
Apr 15, 2013
filing date -
Apr 15, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for antenna calibration is disclosed, the method including driving calibration signals for antenna array beam calibration to an antenna array feeder line in a transceiver front end unit by using one or more directional couplers and/or radio frequency probes, wherein calibration signal paths are integrated inside the transceiver front end unit. Measurements are carried out on the calibration signals, between different antenna combinations inside the antenna array. Based on collected measurement data, calibration information is calculated for each measurement branch of the antenna array by using a mathematical formula. Active antenna array beam calibration is then performed based on the calculated calibration information.
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