An efficient nonlinear circuit simulation technique
Dautbegovic, Emira, Condon, Marissa and Brennan, ConorORCID: 0000-0002-0405-3869
(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
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.
Proceedings of the 2004 IEEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers.
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Institute of Electrical and Electronics Engineers. ISBN 0-7803-8333-8