Title :
Outphasing power amplifier design investigations for 2.5G and 3G standards
Author :
Napieralska, E. ; Zannoth, M. ; Kraut, G. ; Biebl, E.
Author_Institution :
Qimonda AG, Neubiberg
Abstract :
This paper presents investigations on outphasing power amplifier realizations based on a 2-stage 0.35 mum SiGe-bipolar PA design for 850 MHz and 1800 MHz. A Chireix combiner, a 90deg hybrid coupler and a Wilkinson power combiner were designed and all types were characterized in terms of efficiency and linearity for the usage in mobile phone applications.
Keywords :
Ge-Si alloys; UHF power amplifiers; microwave power amplifiers; power combiners; SiGe-power amplifier; Wilkinson power combiner; frequency 1800 MHz; frequency 850 MHz; mobile phone; power amplifier design; Circuits; Linearity; Microwave amplifiers; Mobile handsets; Power amplifiers; Power combiners; Power generation; Radio frequency; Radiofrequency amplifiers; Voltage control;
Conference_Titel :
Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-002-6
DOI :
10.1109/EMICC.2007.4412729
