Abstract

Fundamental EMI source mechanisms leading to common-mode radiation from printed circuit boards with attached cables are presented in this paper. Two primary EMI source mechanisms have been identified: one associated with a differential-mode voltage and another associated with a differential-mode current, both of which result in a common-mode current on an attached cable. These mechanisms can he used to relate printed circuit layout geometries to EMI sources. The two mechanisms are demonstrated through numerical and experimental results, and an example from a production printed-circuit design is presented.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Attached Cables; Common-Mode Current; Common-Mode Radiation; Differential-Mode Current; Differential-Mode Voltage; Electromagnetic Interference; Fundamental EMI Source Mechanisms; Printed Circuit Boards; Printed Circuit Layout; Printed Circuit Layout Geometries; Production Printed-Circuit Design

International Standard Serial Number (ISSN)

0018-9375

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 1996 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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