Method of IQ imbalance compensation for RF transceivers

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Authors: Abramenko A. Yu., Goshin G. G.

Annotation: The paper describes a technique for measuring gain and phase imbalance, DC offset in RF quadrature modulators. The method uses a signal source analyzer for correction carrier leakage and power of undesired sideband. The experimental data is obtained, measurement speed and accuracy are analyzed.

Keywords: quadrature modulator, calibration, gain imbalance, phase imbalance, evm