PCB Conductor Surface Roughness as a Layer with Effective Material Parameters
- Koledintseva, Marina
- Razmadze, Alexander G.
- Gafarov, Aleksandr Yakubovich
- De, Soumya
- Drewniak, James L.
- Hinaga, Scott
Publication date
August 2012
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
A model to substitute conductor surface roughness in printed circuit boards by a layer with an effective material (lossy dielectric) is proposed and tested using the 2D finite-element method (FEM) electromagnetics numerical simulations. The results of numerical modeling of a multilayered structure corresponding to a stripline transmission line with substituted roughness are compared with the experimental results obtained on a TRL-calibrated test vehicle with significant roughness on conductors made of a standard (STD)-roughness copper foil
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