Title :
Cross-memory polynomial modeling for RF circuits
Author :
Farsi, S. ; Dooley, John ; Finnerty, Keith ; Schreurs, Dominique ; Nauwelaers, B. ; Farrell, Ronan
Author_Institution :
Dept. Electr. Eng., Univ. of Leuven, Leuven, Belgium
Abstract :
A new behavioral model is proposed which can provide similar accuracy to the memory polynomial model (MPM) but is shown to have a more efficient architecture for digital hardware implementation. These features have been achieved by the proposed formulation, in which the nonlinear weights of the memory terms are a function of only the present input sample. The new approach is evaluated and compared with the conventional MPM using a Wideband Code Division Multiple Access (WCDMA) signal applied to two different amplifier circuits.
Keywords :
code division multiple access; radiofrequency amplifiers; MPM; RF circuits; WCDMA signal; amplifier; behavioral model; cross-memory polynomial modeling; digital hardware implementation; nonlinear weights; wideband code division multiple access signal; Computer architecture; Density measurement; Frequency measurement; Integrated circuit modeling; Mathematical model; Multiaccess communication; Polynomials; behavioral modeling; digital predistortion; memory effects; memory polynomial; nonlinear circuits;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2012 7th European
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4673-2302-4
Electronic_ISBN :
978-2-87487-026-2
