Title :
A Highly Linear CMOS Power Amplifier with AM-AM and AM-PM Compensation for 2.3GHz Wibro/WiMax Applications
Author :
Yoo, Hyun Jin ; Eo, Yun Seong
Author_Institution :
RF Circuits & Syst. Lab., Kwangwoon Univ., Seoul
Abstract :
A highly linear 2.3 GHz CMOS power amplifier applicable to Wibro/Wimax RF transmitter with AM-AM and AM-PM compensation is presented. The varactors are used as a part of tuned circuits to correct the phase distortion and gate bias control circuit to compensate the amplitude distortion of power amplifier. The proposed CMOS PA has been implemented in 0.13 um CMOS technology. The simulation results show the improvement of P1dB of 5 dB and the PAE from 2.5% to 7.5% at the average power, respectively.
Keywords :
CMOS integrated circuits; Internet; UHF integrated circuits; UHF power amplifiers; WiMax; radio transmitters; varactors; AM-AM compensation; AM-PM compensation; UHF integrated circuits; UHF power amplifiers; WiBro RF transmitter; Wimax; frequency 2.3 GHz; linear CMOS power amplifier; phase distortion; size 0.13 mum; CMOS technology; High power amplifiers; Phase distortion; RLC circuits; Radio frequency; Radiofrequency amplifiers; Transmitters; Tuned circuits; Varactors; WiMAX;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4555145
