Title :
A CMOS power amplifier for Multi-mode LINC architecture
Author :
Lee, Hongtak ; Lee, Hyun-Yong ; Paek, Ji-Seon ; Hong, Songcheol
Author_Institution :
Sch. of EECS, Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
A CMOS power amplifier for Multi-mode LINC operation is implemented in 0.18-¿m process. The LINC architecture except signal separator was integrated and implemented with two-chip solution. LINC operation is used to increase the maximum linear output power in the saturation range of linear PAs. The designed PA operates at 1950 MHz with the maximum linear output power of 26 dBm with 20% PAE for WCDMA signal. The improvement of 2 dB linear output power and 8% efficiency at the maximum linear power can be obtained by using the multi-mode LINC operation.
Keywords :
CMOS analogue integrated circuits; UHF power amplifiers; CMOS power amplifier; WCDMA; frequency 1950 MHz; linear PA; linear output power; multimode LINC architecture; size 0.18 mum; two-chip solution; CMOS digital integrated circuits; Multiaccess communication; Operational amplifiers; Peak to average power ratio; Power amplifiers; Power generation; Radiofrequency amplifiers; Signal generators; Telephone sets; Transformers; CMOS power amplifier; Linear amplification using nonlinear components(LINC); WCDMA power amplifier; outphasing;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2010 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-4725-1
Electronic_ISBN :
978-1-4244-4726-8
DOI :
10.1109/RWS.2010.5434215
