Title :
RF gain/phase and I/Q imbalance error correction technique for multi-channel array antenna systems
Author :
Park, Hyeong Geun ; Park, Chul ; Oh, Hyunseo ; Kyeong, Mun Geon
Author_Institution :
Radio & Broadcasting Technol. Lab., ETRI, Taejon, South Korea
Abstract :
A method of correcting the I/Q imbalance errors and amplitude/phase variations for the multi-channel transceiver has been proposed. It utilizes multi-frequency sinusoidal probe signals to take account of the amplitude/phase variations in the passband of the system. The performance of the proposed multi-channel transceiver calibration scheme is verified by the experiment and simulation. The effect of mutual coupling errors between antenna elements on the beam pattern is also evaluated by simulation
Keywords :
adaptive antenna arrays; antenna radiation patterns; array signal processing; calibration; error correction; telecommunication channels; transceivers; I/Q imbalance error correction; RF gain/phase imbalance error correction; adaptive array antenna; amplitude/phase variations; antenna elements; beam pattern; beamforming algorithms; multi-channel array antenna systems; multi-channel transceiver calibration; multi-frequency sinusoidal probe signals; mutual coupling errors; simulation; system passband; Adaptive arrays; Antenna arrays; Array signal processing; Calibration; Error correction; Phased arrays; Probes; Radio frequency; Transceivers; Transfer functions;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944826
