Hybridization of FDTD and device behavioral-modeling techniques

S. Grivet-Talocia, I.S. Stievano, F.G. Canavero
2003 IEEE transactions on electromagnetic compatibility (Print)  
We present a systematic methodology for the electromagnetic modeling of interconnected digital I/O ports. Digital drivers and receivers are represented through behavioral models based on radial basis functions expansions. Such a technique allows a very accurate representation of nonlinear/dynamic effects as well as switching behavior of real-world components by means of carefully identified discrete-time models. The inclusion of these models into a finite-difference time-domain solver for
more » ... in solver for full-wave analysis of interconnected systems is presented. A rigorous stability analysis shows that use of nonlinear/dynamic discrete-time models can be easily integrated with standard full-wave solvers, even in the case of unmatched sampling time. A set of numerical examples illustrates the feasibility of this method. Index Terms-Behavioral models, digital I/O ports, finite-difference time-domain (FDTD) methods, nonlinear circuits, radial basis functions, transient analysis.
doi:10.1109/temc.2002.808035 fatcat:pxakduna2nccdbhlsw6s3fonnu