Common-mode currents generated by circuits on a PCB-measurements and transmission-line calculations

Author

van Horck, F.B.M. ; van Deursen, A.P.J. ; van der Laan, P.C.T.

Author_Institution

Philips Components, Eindhoven, Netherlands

Volume

43

Issue

4

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

608

Lastpage

617

Abstract

Common-mode (CM) currents on cables attached to printed circuit boards of various complexity have been measured. The boards have a continuous ground plane, with tracks on both sides. The experimental results are compared to calculations with a transmission-line (TL) model. Expressions for the coupling parameters in the TL model have been derived with conformal transformations and the method of moments. Measurements up to 1 GHz agree with the TL model, showing that this model can be used as a tool for an early EMC analysis during the lay-out and routing of a board

Keywords

electric current measurement; electromagnetic compatibility; method of moments; printed circuit testing; printed circuits; transmission line theory; EMC; EMI coupling path; PCB; circuit board layout; circuit board routing; common-mode currents; conformal transformations; continuous ground plane; coupling parameters; electromagnetic compatibility; method of moments; multilayer boards; printed circuit board; transmission-line model; Cables; Circuit testing; Conductivity; Coupling circuits; Delta modulation; Electromagnetic compatibility; Insulation life; Printed circuits; Routing; Transmission lines;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.974641

Filename

974641