Title :
Adaptive algorithms for feed-forward power amplifier linearizer
Author :
Yusheng Chen ; Boon Poh Ng ; Kot, A.C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
Abstract :
This paper presents two novel adaptive algorithms for a Feed-Forward Power Amplifier (FFPA) linearizer, one is based on the minimized power concept, while the other is the correlation between the input and output signal. Simulation shows that both of them could suppress the undesired signal for more than 20 dB.
Keywords :
adaptive signal processing; correlation methods; feedforward; linearisation techniques; power amplifiers; radiofrequency amplifiers; adaptive algorithms; feedforward power amplifier linearizer; input/output signal correlation; minimized power concept; steepest descent algorithm; Adaptive algorithm; Adaptive control; Attenuation; Delay; Feedforward systems; Intermodulation distortion; Power amplifiers; Radiofrequency amplifiers; Signal processing; Wideband;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.861083
