Title :
Prediction of Spectral Regrowth of Quasi-Memoryless Fifth-order RF Amplifiers under Multitone Excitation
Author :
Boulejfen, N. ; Harguem, A. ; Ghannouchi, F.M.
Author_Institution :
Electr. Eng. Dept., Univ. of Hail, Hail
Abstract :
New formulas for estimating the spectral regrowth at the output of RF Power Amplifiers (RFPAs) have been proposed. The formulas predict the average output power spectral density (PSD) of fifth-order quasi- memoryless RFPAs, excited with uncorrelated tones. The efficiency of the proposed approach is demonstrated by predicting the spectral regrowth in a commercial RFPA for different input power levels. The obtained results were compared to those of a harmonic balance simulation and have shown a good accuracy and time efficiency.
Keywords :
intermodulation distortion; power amplifiers; radiofrequency amplifiers; spectral analysis; RF power amplifiers; intermodulation distortion; multitone excitation; power spectral density; quasimemoryless fifth-order RF amplifiers; spectral regrowth; Amplitude modulation; Circuit testing; Digital modulation; Frequency estimation; Multiaccess communication; Power amplifiers; Power engineering computing; Power generation; Radiofrequency amplifiers; Wideband; Spectral regrowth; intermodulation distortion; multitone; power amplifiers; power series;
Conference_Titel :
Microelectronics, 2006. ICM '06. International Conference on
Conference_Location :
Dhahran
Print_ISBN :
1-4244-0764-8
Electronic_ISBN :
1-4244-0765-6
DOI :
10.1109/ICM.2006.373309
