Title :
Design of a multi-cell power amplifier for WCDMA application
Author :
Leyssenne, L. ; Pham, J.-M. ; Jarry, P. ; Kerherve, E.
Author_Institution :
IXL Microelectron. Lab., Bordeaux I Univ., Talence, France
Abstract :
This paper presents several techniques in order to improve the trade-off linearity/efficiency in power amplifiers for WCDMA application. First of all, the study of a differential bipolar linearizer is addressed; second, the consumption control via switched biases and power cells. Simulations were carried out with a BiCMOS process and they show a 27 dBm linear power amplifier (PA) output power with a power added efficiency up to 35% and a 31 dBm maximum output power with a 45% power added efficiency (PAE).
Keywords :
BiCMOS integrated circuits; broadband networks; code division multiple access; power amplifiers; BiCMOS process; WCDMA; consumption control; differential bipolar linearizer; linear power amplifier; multicell power amplifier; power added efficiency; power cells; switched biases; BiCMOS integrated circuits; Capacitance; IEEE members; Laboratories; Linearity; Microelectronics; Multiaccess communication; Power amplifiers; Power generation; Voltage;
Conference_Titel :
Microwave and Optoelectronics, 2005 SBMO/IEEE MTT-S International Conference on
Print_ISBN :
0-7803-9341-4
DOI :
10.1109/IMOC.2005.1580094
