Title :
Generic Power Amplifier linearization
Author :
Bensmida, S. ; Morris, K. ; Beach, M. ; McGeehan, J.
Author_Institution :
Center for Commun. Res., Univ. of Bristol, Bristol, UK
Abstract :
Classic linearization of a radiofrequency (RF) Power Amplifier (PA) is based on measuring its response to a representative test signal in order to extract pre-distortion parameters. Characterizing an RF PA under 3GPP Long Term Evolution (LTE) RF signals requires high speed data acquisition instruments and customized algorithms to estimate its response. In this work, a PA linearization method using a generic probing signal to extract pre-distortion parameters is proposed. A GaN HEMT Class-AB structure is tested to demonstrate the effectiveness of the proposed linearization method.
Keywords :
3G mobile communication; data acquisition; distortion; high electron mobility transistors; linearisation techniques; power amplifiers; radiofrequency amplifiers; signal processing; 3GPP long term evolution; GaN; HEMT Class-AB structure; RF PA; high speed data acquisition instruments; linearization; pre-distortion parameters; radiofrequency power amplifier; Data acquisition; Data mining; Instruments; Long Term Evolution; Power amplifiers; Power measurement; RF signals; Radio frequency; Radiofrequency amplifiers; Testing; 3GPP LTE; ACLR; Class-AB; EVM; Memory-less predistortion; Power Amplifier;
Conference_Titel :
Signals, Circuits and Systems (SCS), 2009 3rd International Conference on
Conference_Location :
Medenine
Print_ISBN :
978-1-4244-4397-0
Electronic_ISBN :
978-1-4244-4398-7
DOI :
10.1109/ICSCS.2009.5412568
