Title :
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
fDate :
11/1/2001 12:00:00 AM
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;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
