Safieddin Safavi-Naeini - Center for Wireless Communications, University of Waterloo
Mohamed I. Elmasry - VLSI Research Group, University of Waterloo
N. Masoumi - Electerical and Computer Engineering, University of Tehran

This paper presents an efficient modeling method, based on the microstrip lines theory, for the coupling between a sub­strate backplane and a device contact. We derive simple closed-form formulas for rapid extraction of substrate parasitics. We use these formulas to model spiral inductors as important substrate-noise sources in mixed-signal systems. The proposed model is verified for the frequencies up to ۳۵ GHz, and is easily adaptable to CAD tools.

Substrate Coupling, Microstrip Lines, mixed, signal, Spiral Inductors, CAD Tools