Abstract

Surface roughness topography of printed circuit boards (PCBs) needs to be included in SI simulations in order to accurately predict the insertion loss of the structure. An effective roughness dielectric (ERD) model can be used to substitute an inhomogeneous interface between copper foil and laminate dielectric in a PCB. Herein, this approach is tested for verification using 3D full-wave numerical simulations. These effective roughness dielectric layers with the appropriate complex permittivity are included in the modeling of strip line examples. The parameters of an ambient laminate dielectric free of conductor roughness effects in the strip line are determined using differential extrapolation roughness measurement technique (DERM). The agreement of the results of 3D full-wave modeling simulations with the proposed approach and measurements justifies the proposed approach.

Department(s)

Electrical and Computer Engineering

International Standard Book Number (ISBN)

978-147995544-2

International Standard Serial Number (ISSN)

2158-1118; 1077-4076

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 Institute of Electrical and Electronics Engineers, All rights reserved.

Publication Date

15 Sep 2014

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