Title :
A novel transformer network and its analysis for power combiner blocks in CMOS technology
Author :
Javidan, Javad ; Torkzadeh, Pooya ; Atarodi, Mojtaba
Author_Institution :
EE Dept., Sharif U. of T., Tehran, Iran
Abstract :
In this paper, a novel multi-transformer architecture as power combiner for fully integrated CMOS power amplifier will be presented. Proposed transformers are composed of multiple single-turn inductors inside each other to obtain high quality factor and save the area at the same time. According to two proposed and explained topologies for power stages, each transformer network´s performance is fully analyzed and has been optimized for obtaining high efficiency versus physical dimensions. Designed transformer networks are optimized for the frequency band of 900 MHz using 0.18-¿m TSMC technology.
Keywords :
CMOS analogue integrated circuits; Q-factor; power amplifiers; power combiners; transformers; TSMC technology; frequency 900 MHz; fully integrated CMOS power amplifier; power combiner; quality factor; single-turn inductors; size 0.18 mum; transformer network; CMOS process; CMOS technology; Inductors; Magnetic flux; Network topology; Power amplifiers; Power combiners; Power generation; Q factor; Radio frequency; Power amplifier; efficiency optimization; power combiner; transformer;
Conference_Titel :
Microelectronics, 2008. ICM 2008. International Conference on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4244-2369-9
Electronic_ISBN :
978-1-4244-2370-5
DOI :
10.1109/ICM.2008.5393523
