Title :
Stability considerations for dynamically biased cartesian feedback linearization
Author :
Briffa, Mark A. ; Faulkner, Michael
Author_Institution :
Dept. of Electr. & Electron. Eng., Victoria Univ. of Technol., Melbourne, Vic., Australia
Abstract :
RF amplifier linearization by dynamically biased cartesian feedback is analyzed using a multiple input multiple output (MIMO) model. The effects of RF amplifier distortion-namely AM/AM and AM/PM distortion, are shown to degrade the stability of the dynamically biased cartesian feedback loop. A versatile technique is presented that allows the amount of stability degradation to be determined for any RF amplifier
Keywords :
MIMO systems; feedback amplifiers; input-output stability; linearisation techniques; radiofrequency amplifiers; AM/AM distortion; AM/PM distortion; MIMO model; RF amplifier linearization; amplifier distortion; dynamically biased cartesian feedback; multiple input multiple output; stability; Feedback circuits; Feedback loop; MIMO; Nonlinear distortion; Output feedback; Power amplifiers; RF signals; Radio frequency; Radiofrequency amplifiers; Stability;
Conference_Titel :
Vehicular Technology Conference, 1994 IEEE 44th
Conference_Location :
Stockholm
Print_ISBN :
0-7803-1927-3
DOI :
10.1109/VETEC.1994.345308
