Title :
A 5th order Volterra study of a 30W LDMOS power amplifier
Author :
Heiskanen, Antti ; Aikio, Janne ; Rahkonen, Timo
Author_Institution :
Dept. of Electr. Eng., Oulu Univ., Finland
Abstract :
A 30 W LDMOS is modeled using a 5th order polynomial model. The polynomial model is compared to the large-signal MET model using harmonic balance, and as the results agreed very well, the polynomial model was imported to a numerical Volterra simulator to find out the dominant cause of distortion for a class A biased amplifier. The characterization technique is briefly discussed.
Keywords :
UHF integrated circuits; UHF power amplifiers; Volterra series; integrated circuit modelling; nonlinear distortion; nonlinear network analysis; polynomials; 30 W; LDMOS power amplifier; amplitude dependent distortion mechanisms; bandwidth dependent distortion mechanisms; characterization technique; class A biased amplifier; dominant distortion mechanism; fifth order Volterra study; fifth order polynomial model; harmonic balance; large-signal MET model; numerical Volterra simulator; Bandwidth; Data mining; FETs; Harmonic distortion; Laboratories; Mobile communication; Numerical simulation; Polynomials; Power amplifiers; Voltage;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1206164
