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Article
Anticipating EMI from Coupling Between High-Speed Digital and I/O Lines
Proceedings of the IEEE International Symposium on Electromagnetic Compatibility (1999, Seattle, WA)
  • Wei Cui
  • Min Li
  • Xiao Luo
  • James L. Drewniak, Missouri University of Science and Technology
  • Todd H. Hubing, Missouri University of Science and Technology
  • Thomas Van Doren, Missouri University of Science and Technology
  • Richard E. DuBroff, Missouri University of Science and Technology
Abstract

The increasing speed of digital circuit design as well as the density of printed circuit board (PCB) layouts often result in more challenging electromagnetic interference (EMI) problems. The coupling between a high-speed digital line and an I/O line can be a primary EMI coupling path, and the attached cable a dominant radiator. This mechanism is studied and modeled herein in a multi-stage modeling fashion. EMI modeling is developed for coupling between the transmission lines, and the attached cable as the EMI antenna. Finally, the EMI is calculated for the coupled noise driving the attached cable. The agreement between the modeled and measured results demonstrates that the modeling method is suitable for estimating the EMI due to high-frequency coupling to I/O lines.

Meeting Name
IEEE International Symposium on Electromagnetic Compatibility (1999: Aug. 2-6, Seattle, WA)
Department(s)
Electrical and Computer Engineering
Research Center/Lab(s)
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
  • EMI Antenna,
  • EMI Coupling Path,
  • EMI Estimation,
  • EMI Modeling,
  • I/O Lines,
  • PCB Layout Density,
  • Cable,
  • Coupled Noise,
  • Coupled Transmission Lines,
  • Digital Circuit Design,
  • Digital Circuits,
  • Electric Current Measurement,
  • Electric Impedance Measurement,
  • Electric Noise Measurement,
  • Electromagnetic Coupling,
  • Electromagnetic Interference,
  • High-Frequency Coupling,
  • High-Speed Digital Lines,
  • Measured Results,
  • Microstrip,
  • Microstrip Lines,
  • Multi-Stage Modeling,
  • Noise,
  • Printed Circuit Board Layout,
  • Printed Circuit Layout,
  • Radiator,
  • Strip Lines,
  • Stripline,
  • Transmission Line Theory,
  • Transmission Lines Coupling
International Standard Book Number (ISBN)
978-0780350571
Document Type
Article - Conference proceedings
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 1999 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
8-1-1999
Publication Date
01 Aug 1999
Citation Information
Wei Cui, Min Li, Xiao Luo, James L. Drewniak, et al.. "Anticipating EMI from Coupling Between High-Speed Digital and I/O Lines" Proceedings of the IEEE International Symposium on Electromagnetic Compatibility (1999, Seattle, WA) Vol. 1 (1999) p. 189 - 194 ISSN: 1077-4076
Available at: http://works.bepress.com/thomas-vandoren/16/