Frequency-domain 3D Electromagnetic modeling approaches always have the potential
for causality and passivity violation issues, especially when applied to greater than
20Gbsec data rates applications: initial applications for 3D Electromagnetic modeling
methods were only used in low bandwidth frequency-domain microwave designs.
A new and inherently passive and causal time-domain oriented approach for 3D
Electromagnetic modeling is introduced in detail. The authors show specific advantages
of this approach for baseband-NRZ very high-speed backplanes, interconnects, and
general board design for digital systems. Selecting the correct loss model will be included
and the model results will be compared to actual measurements to 20 GHz using a test
board specifically designed for this presentation.
