Title :
Quantitative Measurements of Memory Effects in Wideband RF Power Amplifiers Driven by Modulated Signals
Author :
Liu, Taijun ; Boumaiza, Slim ; Sesay, Abu B. ; Ghannouchi, Fadhel M.
Abstract :
This letter proposes a novel metric to measure quantitatively the electrical memory effects in wideband power amplifiers (PAs) fed with modulated signals. With the proposed memory effect metrics, the intensity of the electrical memory effects for different PAs, under a variety of the excitation modulated signals, can be quantitatively defined. The examples given in this letter illustrate the effectiveness of this definition in measuring the electrical memory effects
Keywords :
power amplifiers; wideband amplifiers; adjacent channel power ration; memory effects; wideband RF power amplifiers; Broadband amplifiers; Electric variables measurement; Intermodulation distortion; Power amplifiers; Power measurement; Predistortion; RF signals; Radio frequency; Radiofrequency amplifiers; Wideband; Adjacent channel power ration (ACPR); memory effects; power amplifiers (PAs);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.887286
