General Nonlinear Feed-forward RF Model for Power Amplifiers

Author

Cunha, Telmo R. ; Pedro, José C. ; Cabral, Pedro M. ; Zhu, Anding

Author_Institution

Univ. de Aveiro, Aveiro

fYear

2007

fDate

3-8 June 2007

Firstpage

2027

Lastpage

2030

Abstract

This paper presents a procedure to design a non-recursive model, suited for simulation and able to model short-and long-term memory effects, that is the best nonlinear approximator, up to a certain polynomial order, of a feedback behavioral model whose topology was derived from the PA physical behavior. A simple and systematic model extraction procedure, based on single-and two-tone tests, is given for a model truncated to 3^rd order, and its validation is demonstrated through ADS simulation comparison.

Keywords

feedback amplifiers; feedforward amplifiers; polynomial approximation; power amplifiers; radiofrequency amplifiers; feedback behavioral model; long-term memory effects; model extraction procedure; nonlinear approximator; nonlinear feedforward RF model; nonrecursive model; polynomial order; power amplifiers; short-term memory effects; Circuits; Feedforward systems; Impedance; Nonlinear systems; Power amplifiers; Power system modeling; RF signals; Radio frequency; Radiofrequency amplifiers; Topology; Feedforward systems; Volterra series; modeling; nonlinear systems; power amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380248

Filename

4264265