Title :
Power amplifier driver for SDR transmitter with high gain tuning range and dynamic power control
Author :
Li, Yilei ; Han, Kefeng ; Yan, Na ; Tan, Xi ; Min, Hao
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
Power amplifier drivers for software-define radio (SDR) transmitter with large gain tuning range are presented. The drivers can work with WCDMA/GSM protocol. Dynamic power control method is adopted to increase the efficiency of power amplifier driver in low gain mode. The power amplifier drivers are implemented in SMIC 0.13μm RF technology, and measurement results show that power amplifier drivers have 44 dB gain range with 2 dB gain step and 0.8 dB maximum gain step error. Also, the output of the drivers can meet the requirement of different standards with enough margin for external power amplifier (PA).
Keywords :
cellular radio; code division multiple access; power amplifiers; power control; protocols; radio transmitters; software radio; PA; SDR transmitter; SMC RF technology; WCDMA-GSM protocol; dynamic power control; gain 0.8 dB; gain 2 dB; gain 44 dB; high gain tuning range; power amplifier driver; size 0.13 mum; software-define radio transmitter; Delta modulation; Linearity; Optical wavelength conversion; Radio access networks; System-on-a-chip;
Conference_Titel :
ASIC (ASICON), 2011 IEEE 9th International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-61284-192-2
Electronic_ISBN :
2162-7541
DOI :
10.1109/ASICON.2011.6157385
