Title :
A 2.5GHz CMOS power amplifier for WiMAX application
Author :
Chen, Meng-Ping ; Shih, Chun-Hsing ; Chang, Wei ; Lien, Chenhsin
Author_Institution :
Inst. of Electron. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
This paper demonstrates the design of a radio frequency (RF) class A power amplifiers for WiMAX application using TSMC 0.18μm CMOS technology. A novel two-stage cascode common-source amplifier and a load-pull output matched power amplifier are designed for the WiMAX application of 2.5 GHz transmitting frequency. The designed power amplifier exhibits 19.8 dBm of 1-dB compression point, 24.1 dBm of output power, 35% power-added-efficiency (PAE), and 23.3 dB of power gain under 3.3V and 1.8V supply voltages. The power consumption is about 827.34 mW. A small chip size of 0.81 × 0.65 mm2 is achieved with all matching networks.
Keywords :
CMOS analogue integrated circuits; UHF power amplifiers; WiMax; integrated circuit design; CMOS power amplifier; RF class A power amplifiers; TSMC CMOS technology; WiMax application; frequency 2.5 GHz; gain 23.3 dB; load-pull output matched power amplifier; power-added-efficiency; radiofrequency power amplifiers; size 0.18 mum; two-stage cascode common-source amplifier; voltage 1.8 V; CMOS technology; Energy consumption; Gain; Impedance matching; Power amplifiers; Power generation; Radio frequency; Radiofrequency amplifiers; Voltage; WiMAX;
Conference_Titel :
Green Circuits and Systems (ICGCS), 2010 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-6876-8
Electronic_ISBN :
978-1-4244-6877-5
DOI :
10.1109/ICGCS.2010.5542974
