Title :
A design of analog predistortion linearizer for RF power amplifier to reduce IMD
Author :
Liao, Yi ; Su, Donglin ; Wang, Yi ; Chen, Wenqing
Author_Institution :
Sch. of Electron. & Inf. Eng., EMC Lab., Beijing
Abstract :
This paper proposes a predistortion linearizer to reducing the third and fifth order intermodulation products in RF power amplifier. Power amplifier linearity has been improved by independently controlling the amplitudes and phases of the third order (IMD3) and fifth order (IMD5) intermodulation distorted products, which are generated by using low frequency second order intermodulation components. Simulation results show that the method is effective and convenient.
Keywords :
intermodulation distortion; power amplifiers; radiofrequency amplifiers; IMD reduction; RF power amplifier; analog predistortion linearizer; fifth order intermodulation distorted products; low frequency second order intermodulation components; third order intermodulation distorted products; Costs; Feedback circuits; Feedforward systems; Linearity; Power amplifiers; Predistortion; RF signals; Radio frequency; Radiofrequency amplifiers; Signal processing;
Conference_Titel :
Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2192-3
Electronic_ISBN :
978-1-4244-2193-0
DOI :
10.1109/ISAPE.2008.4735430
