Title :
Envelope Tracking power amplifier optimization for mobile applications
Author :
Young, J.P. ; Ripley, David ; Lehtola, Phil
Author_Institution :
Skyworks Solutions Inc., Cedar Rapids, IA, USA
Abstract :
Envelope Tracking (ET) power amplifiers (PA) have been developed for next generation mobile handsets and tablets to improve efficiency. The ET PA provides improved system efficiency at the highest output power levels but does require performance trade-offs which must be considered. This paper will discuss the ET system performance, compare PA technologies and will provide some of the system performance tradeoffs when implementing the ET PA.
Keywords :
mobile handsets; radiofrequency power amplifiers; envelope tracking power amplifier optimization; mobile applications; mobile handsets; system efficiency; Batteries; CMOS integrated circuits; Gallium arsenide; Mobile handsets; Power amplifiers; Power generation; Radio frequency; ET; Envelope tracking; MMMB; PA; handset; mobile; multiband; multimode; power amplifier;
Conference_Titel :
SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S), 2013 IEEE
Conference_Location :
Monterey, CA
DOI :
10.1109/S3S.2013.6716534
