Title :
Effect of bias scheme on intermodulation distortion and its use for the design of PCS Tx driver
Author :
Jin-Su Ko ; Hyun-Seok Kim ; Beom-Kyu Ko ; Bonkee Kim ; Byeong-Ha Park
Author_Institution :
Media Team, Samsung Electron. Co. Ltd., Suwon, South Korea
Abstract :
Several kinds of biasing circuits for high linearity driver are analyzed and compared using Volterra series analysis. Theoretical analysis and nonlinear simulation of a one-stage RFIC amplifier indicate about 10 dB dependence of the IP3 parameter on the biasing scheme being used. Based upon the analysis, transistor current source with inductor is used for biasing circuit for PCS Tx driver amplifier requiring both higher IP3 and lower power consumption. The design has a power gain of 0/spl sim/25.5 dB, output IP3 of 22 dBm, and current consumption of 24 mA.
Keywords :
MMIC power amplifiers; circuit simulation; code division multiple access; digital radio; driver circuits; intermodulation distortion; personal communication networks; radio transmitters; 0 to 25.5 dB; 24 mA; IP3 parameter; PCS Tx driver; bias scheme; biasing circuits; current consumption; driver amplifier; intermodulation distortion; nonlinear simulation; power consumption; power gain; transistor current source; Analytical models; Circuit simulation; Driver circuits; Energy consumption; High power amplifiers; Inductors; Intermodulation distortion; Linearity; Personal communication networks; Radiofrequency integrated circuits;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2000. Digest of Papers. 2000 IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-6280-2
DOI :
10.1109/RFIC.2000.854427
