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A comparison of different approaches for the simulation of nonlinear transmission lines
Author(s) -
Fernández M.,
Martín F.,
Steenson P.,
Mélique X.,
Oistein A.,
Oriols X.,
Vanbésien O.,
GarcíaGarcía J.,
Miles R.,
Lippens D.
Publication year - 2002
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10253
Subject(s) - nonlinear system , capacitance , harmonic balance , transmission line , nonlinear element , signal (programming language) , electronic engineering , electric power transmission , microwave , transmission (telecommunications) , power (physics) , harmonic , computer science , line (geometry) , topology (electrical circuits) , control theory (sociology) , engineering , electrical engineering , acoustics , physics , telecommunications , mathematics , control (management) , artificial intelligence , geometry , electrode , quantum mechanics , programming language
In this work, a detailed analysis of two different approaches to the simulation of nonlinear transmission lines (NLTLs) is presented. Distributed and lumped‐element models have been compared, and it has been shown that the latter (and simpler) approach provides a good description of NLTL behavior when the per‐section capacitance of the line is smaller than the lumped nonlinear capacitance. Filtering aspects of NLTLs under large‐signal driving conditions have been studied with the use of a harmonic balance simulation that avoids the need to linearize the circuit. This is the first time that this powerful simulation tool has been used to study the transmission properties of NLTLs. The results are compared to those obtained by means of a conventional small‐signal S‐parameter simulation and effects related to large‐signal driving conditions, such as the influence of the input power level and the degree of nonlinearity, are presented. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 134–136, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10253