Towards Complex Over-The-Air Calibration of a MIMO mmWave Testbed

Calibration of mm-wave transceiver arrays with respect to phase and amplitude of signals on all its antenna elements is essential for proper operation. Moreover, during operation it may be necessary to update such calibration coefficients. Here we present an algorithm based on channel symmetries to...

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Bibliographic Details
Published in2023 17th European Conference on Antennas and Propagation (EuCAP) pp. 1 - 5
Main Authors Buisman, Koen, Eriksson, Thomas
Format Conference Proceeding
LanguageEnglish
Published European Association for Antennas and Propagation 26.03.2023
Subjects
antenna arrays
Antenna measurements
antennas
Calibration
measurements
MIMO
mm-wave
OTA
Over-the-air
Phase measurement
Phased arrays
Receivers
Transceivers
Transmitters
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Summary:Calibration of mm-wave transceiver arrays with respect to phase and amplitude of signals on all its antenna elements is essential for proper operation. Moreover, during operation it may be necessary to update such calibration coefficients. Here we present an algorithm based on channel symmetries to calibrate both transmitter and receiver amplitude and phase in a mm-wave testbed using Over-The-Air measurements only. The algorithm is tested using the Chalmers mm-wave testbed MATE at 29 GHz.
DOI:10.23919/EuCAP57121.2023.10133234