EMI Analysis of DVI Link Connectors

Abhishek Patnaik*, Soumya De, Yao Jiang Zhang, James L. Drewniak, Chen Wang, Charles Jackson, David Pommerenke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Electromagnetic interference (EMI) is correlated with mode conversion, from differential-mode signals to common-mode currents and further to antenna-mode currents on the outside of cables or enclosures. This paper presents methods to quantify the mode conversion caused by discontinuities in the digital visual interface (DVI) signal link. These discontinuities are mostly present in the DVI connector, the DVI cable, and the connector-cable interface. A systematic approach was developed in this study to isolate and identify the different coupling paths in a high-speed interface (in this case, DVI is shown) and also to identify which discontinuity is most critical to mitigate EMI. The method developed in this study can be used for any high-speed interface in modern communication systems.

Original languageEnglish
Article number7947105
Pages (from-to)149-156
Number of pages8
JournalIEEE Transactions on Electromagnetic Compatibility
Issue number1
Publication statusPublished - 1 Feb 2018
Externally publishedYes


  • Antenna mode (AM)
  • cable radiation
  • cable shielding
  • common mode (CM)
  • coupling path
  • differential mode (DM)
  • digital visual interface (DVI)
  • electromagnetic interference (EMI)
  • HDMI
  • mode conversion
  • port voltage

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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