Hybridization of FDTD and device behavioral-modeling techniques [interconnected digital I/O ports] |
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Authors: | Grivet-Talocia S Stievano IS Canavero FG |
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Affiliation: | Dipt. di Elettronica, Politecnico di Torino, Italy; |
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Abstract: | 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 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. |
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