Intermediate level tools for emissions and immunity: enclosure contents to aperture coupling

This paper presents simple models that can be computed in seconds and give a good estimate of PCB emissions through an aperture in an enclosure. The model is based on computing the coupling of PCB tracks, loops and monopoles to waveguide modes in the enclosure. A simple transmission line equivalent...

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Bibliographic Details
Published in2001 IEEE EMC International Symposium. Symposium Record. International Symposium on Electromagnetic Compatibility (Cat. No.01CH37161) Vol. 1; pp. 189 - 194 vol.1
Main Authors Dawson, J.F., Konefal, T., Marvin, A.C., Porter, S.J., Robinson, M.P., Christopoulos, C., Thomas, D.W.P., Denton, A., Benson, T.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Apertures
Coupling circuits
Distributed parameter circuits
Electromagnetic fields
Electromagnetic waveguides
Equivalent circuits
Impedance
Stripline
Transmission lines
Voltage
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Summary:This paper presents simple models that can be computed in seconds and give a good estimate of PCB emissions through an aperture in an enclosure. The model is based on computing the coupling of PCB tracks, loops and monopoles to waveguide modes in the enclosure. A simple transmission line equivalent model is used for the aperture. Results are presented which show that the method can be used to estimate the coupling of a personal computer motherboard to an enclosure and potentially its radiated emissions through an aperture with reasonable accuracy.
ISBN:9780780365698
0780365690
DOI:10.1109/ISEMC.2001.950593