Title :
A new BJT linearizer design for RF power amplifier
Author :
Sun, Jia ; Chia, Yan Wah Michael ; Bin Li
Author_Institution :
Centre for Wireless Commun., Nat. Univ. of Singapore, Singapore
Abstract :
A new BJT RF Linearizer circuit for RF power amplifiers has been developed. It is of small size, low cost and good performance. Another advantage of the new circuit is easy to control the gain and phase compensation curve with input power increasing. The BJT RF linearizer has been applied to CDMA power amplifier and 4 dBc ACPR and 6 dBc IM3 improvement has been achieved
Keywords :
bipolar transistor circuits; code division multiple access; linearisation techniques; power amplifiers; radiofrequency amplifiers; ACPR; BJT linearizer circuit; CDMA; IM3; RF power amplifier; gain; phase compensation; Costs; Degradation; Diodes; High power amplifiers; Power amplifiers; Predistortion; Radio frequency; Radiofrequency amplifiers; Tuned circuits; Wireless communication;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.926026
