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An efficient nonlinear circuit simulation technique

Dautbegovic, Emira and Condon, Marissa and Brennan, Conor (2004) An efficient nonlinear circuit simulation technique. In: RFIC 2004 - Radio Frequency Integrated Circuits Symposium, 6-8 June 2004, Fort Worth, TX, USA. ISBN 0-7803-8333-8

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Abstract

This paper proposes a new and efficient approach for the analysis and simulation of circuits subject to input signals with widely separated rates of variation. Such signals arise in communication circuits when an RF carrier is modulated by a low-frequency information signal. The proposed technique initially involves converting the ordinary differential equation system, that describes the nonlinear circuit, to a partial differential equation system. The resultant system is then semidiscretised using a multiresolution collocation scheme, involving cubic spline wavelet decomposition. A reduced equation system is subsequently formed, using a nonlinear model reduction strategy. This enables an efficient solution process using trapezoidal numerical integration. Results highlight the efficacy of the proposed approach.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:circuit simulation , nonlinear network analysis , partial reduced order systems; splines (mathematics); wavelet transforms;
Subjects:Mathematics > Differential equations
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Published in:Proceedings of the 2004 IEEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers. . Institute of Electrical and Electronics Engineers. ISBN 0-7803-8333-8
Publisher:Institute of Electrical and Electronics Engineers
Official URL:http://dx.doi.org/10.1109/RFIC.2004.1320698
Copyright Information:©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
ID Code:15485
Deposited On:15 Jul 2010 12:14 by DORAS Administrator. Last Modified 15 Jul 2010 12:14

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