Title :
An orthogonal lookup-table decomposition for accurate IMD prediction in power amplifier with memory
Author :
Quindroit, Christophe ; Ngoya, Edouard ; Bennadji, Abderrazak ; Nébus, Jean-Michel
Author_Institution :
XLIM UMR CNRS 6615 University of Limoges - 123 Avenue Albert-Thomas - 87060, FRANCE
Abstract :
In this paper, an new methodology for modeling the nonlinearity in power amplifier (PA) with memory is presented. It is based on the construction of a basis of orthogonal lookup-tables using SVD technique. It provides an effective and systematic way of representing and digitizing dynamic kernels in PA models that account for memory. It is shown that this procedure guarantees a high accuracy in PA intermodulation (IMD) prediction.
Keywords :
intermodulation; power amplifiers; singular value decomposition; splines (mathematics); PA intermodulation prediction; SVD technique; digitizing dynamic kernels; memory; orthogonal lookup-table decomposition; power amplifier; Circuit simulation; Communication standards; Feedback circuits; Frequency; Kernel; Nonlinear dynamical systems; Polynomials; Power amplifiers; Power system modeling; Predictive models; Behavioral modeling; Power amplifiers; Singular Value Decomposition; Splines; Volterra analysis;
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4633049
