Title :
A study of a variable-capacitance drain network´s influence on dynamic behavioral modeling of an RF power amplifier
Author :
Isaksson, Magnus ; Wisell, David ; Eng, Anders ; Rönnow, Daniel
Author_Institution :
Dept. of Electron., Univ. of Gavle, Gavle, Sweden
Abstract :
An investigation of the complex-valued parameters of two different dynamic behavioral models due to changes in the drain decoupling network of a PA has been performed. The study is based on complex-envelope measurements on a real PA. The complex coefficients of the parallel Hammerstein (PH) and the optimal pole placements of the Kautz-Volterra (KV) models are analyzed. It is concluded that the parameters follow smooth, predictable functions and that the KV poles give a robust description of the PA´s memory effects compared with the PH model.
Keywords :
pole assignment; power amplifiers; radiofrequency amplifiers; Kautz-Volterra models; RF power amplifier; complex-envelope measurements; complex-valued parameters; drain decoupling network; dynamic behavioral modeling; optimal pole placements; parallel Hammerstein; variable-capacitance drain network; Calibration; Error analysis; Impedance measurement; Measurement standards; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Reflection; Sensitivity analysis; Testing; model; nonlinear; power amplifiers; radio transmitter;
Conference_Titel :
ARFTG Conference, 2007 69th
Conference_Location :
Honolulu, HI
Print_ISBN :
978-0-7803-9762-0
Electronic_ISBN :
978-0-7803-9763-7
DOI :
10.1109/ARFTG.2007.5456336
