Simulation of nonlinear RF circuits driven by multi-carrier modulated signals

Author

Carvalho, Nuno B. ; Pedro, José C. ; Jang, Wonhoon ; Steer, Michael B.

Author_Institution

Inst. de Telecomunicacoes, Univ. de Aveiro, Portugal

fYear

2005

fDate

12-17 June 2005

Abstract

The simulation of nonlinear RF circuits driven by digitally-modulated signals with multiple carriers is addressed by combining the envelope transient harmonic balance method with the artificial frequency mapping technique. Specific application examples are considered, in particular the modeling of OFDM-based communications circuits. A mixer subject to a modulated RF signal and an amplifier excited by a multi-carrier modulated stimulus are studied. Here an envelope time-marching scheme is coupled to an artificial frequency mapping based harmonic balance engine.

Keywords

OFDM modulation; circuit simulation; mixers (circuits); nonlinear differential equations; radiofrequency amplifiers; transient response; OFDM-based communications circuits; RF amplifier; RF mixer; artificial frequency mapping; circuit simulation; digitally-modulated signals; envelope time-marching scheme; envelope transient harmonic balance; multi-carrier modulated signals; nonlinear RF circuits; nonlinear differential equations; nonlinear distortion; Circuit simulation; Differential equations; Digital modulation; GSM; OFDM modulation; RF signals; Radio frequency; Radiofrequency amplifiers; Signal mapping; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2005 IEEE MTT-S International

ISSN

01490-645X

Print_ISBN

0-7803-8845-3

Type

conf

DOI

10.1109/MWSYM.2005.1516736

Filename

1516736