Title :
Stability analyses of MMIC power amplifiers
Author :
Liu, Yu ; Yang, Tao ; Yang, Ziqiang
Author_Institution :
Microwave Center, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
An improved stability analysis technique of MMIC power amplifiers is presented. The technique is mainly based on the use of an auxiliary generator, by changing the terminal impedance, the oscillation of nonlinear circuit can be found in the unmatched condition. The method has been applied to two Ka-band monolithic power amplifiers, detecting their autonomous oscillations of DC regime for different terminal impedance, in good agreement with measurements.
Keywords :
MMIC power amplifiers; stability; Ka-band monolithic power amplifiers; MMIC power amplifiers; auxiliary generator; stability analyses; Circuit simulation; Computational modeling; DC generators; Frequency; Impedance; MMICs; Microwave integrated circuits; Nonlinear circuits; Power amplifiers; Stability analysis; MMIC; auxiliary generator; nonlinear circuit; stability;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4076-4
DOI :
10.1109/MAPE.2009.5355869
