Envelope Distortion Models with Memory Improve the Prediction of Spectral Regrowth for Some RF Amplifiers
- 1 December 1996
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 30, 10-15
- https://doi.org/10.1109/arftg.1996.327183
Abstract
The gain compression (am-am), phase distortion (am-pm), and spectral regrowth of an RF amplifier may be found from measurements of the complex modulation envelope. The relationship between the distortion and spectral regrowth is explored by modeling the am-am and am-pm, and then simulating spectral regrowth from the distortion model. Comparison of measurement and model results shows that when hysteresis is present in the amplifier am-am and am-pm distortion, a model with memory is needed to predict the spectral regrowth accurately (within 1 dB).Keywords
This publication has 2 references indexed in Scilit:
- Using Digitally-Modulated Signals to Measure the Gain Compression and Phase Distortion of a Radio Frequency AmplifierPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1995
- Characterizing the effects of nonlinear amplifiers on linear modulation for digital portable radio communicationsIEEE Transactions on Vehicular Technology, 1990