Title :
Efficiency-enhanced self-biased PA driver for multi-standard applications
Author :
Yun Yin ; Baoyong Chi ; Zhihua Wang
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
An efficiency-enhanced multiband power amplifier (PA) driver is proposed. It introduces a self-biasing circuit and improved switch-capacitor banks to enhance the efficiency. The presented PA driver has been implemented in 65 nm CMOS technology. Measurement results demonstrate a broad frequency coverage of 0.7-5.6 GHz and a flat gain within 2 dB variation. The PA driver has an output power above 6 dBm over the broadband, and it consumes a comparatively low power of 38 mA from a 2.5 V supply.
Keywords :
CMOS analogue integrated circuits; MMIC power amplifiers; UHF power amplifiers; driver circuits; field effect MMIC; switched capacitor networks; CMOS technology; current 38 mA; efficiency-enhanced multiband power amplifier; efficiency-enhanced self-biased PA driver; frequency 0.7 GHz to 5.6 GHz; gain 2 dB; improved switch-capacitor banks; self-biasing circuit; size 65 nm; voltage 2.5 V;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.3454
