Numerical simulation of high-frequency circuits in telecommunication

Abstract

Driving circuits with very high frequencies may influence the standard switching behavior of the incorporated semiconductor devices. This motivates us to use refined semiconductor models within circuit simulation. Lumped circuit models are combined with distributed semiconductor models which leads to coupled systems of differential-algebraic equations and partial differential equations (PDAEs). Firstly, we present results of a detailed perturbation analysis for such PDAE systems. Secondly, we explain a robust simulation strategy for such coupled systems. Finally, a multiphysical electric circuit simulation package (MECS) is introduced including results for typical circuit structures used in chip design. © 2008 Springer-Verlag.