Identifying em radiation from asymmetrical differential-paired lines with equi-distance routing

Yoshiki Kayano, Yasunori Tsuda, Hiroshi Inoue

Research output: Chapter in Book/Report/Conference proceedingConference contribution

22 Citations (Scopus)

Abstract

Differential-signaling (DS) techniques such as low-voltage differential-signaling (LVDS) are widely used in digital electronic devices in order to establish a high-speed digital propagation with low-electromagnetic interference (EMI). For actual DS, the ideal balance or symmetrical topology cannot be established, and hence, an imbalance component is excited in practical high-density packaging systems. In this paper, we newly attempt to identify and quantify the frequency responses of the imbalance component and electromagnetic (EM) radiation when the structure and topology change from a symmetrical to an asymmetrical differential-paired lines with equi-distance routing, using a physics-based model, which is constructed with an equivalent circuit model to calculate current distribution, and radiation model based on Hertzian dipole antenna. The physics-based model is validated by comparing the predicted results with FDTD simulation. The frequency response of EM radiation from asymmetrical differential-paired lines can be identified using our proposed model. This study has successfully established a basic method to effectively predict EM radiation from practical differential-paired lines.

Original languageEnglish
Title of host publicationEMC 2012 - 2012 IEEE International Symposium on Electromagnetic Compatibility, Final Program
Pages311-316
Number of pages6
DOIs
Publication statusPublished - 2012 Dec 12
Event2012 IEEE International Symposium on Electromagnetic Compatibility, EMC 2012 - Pittsburgh, PA, United States
Duration: 2012 Aug 52012 Aug 10

Publication series

NameIEEE International Symposium on Electromagnetic Compatibility
ISSN (Print)1077-4076
ISSN (Electronic)2158-1118

Other

Other2012 IEEE International Symposium on Electromagnetic Compatibility, EMC 2012
CountryUnited States
CityPittsburgh, PA
Period12/8/512/8/10

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Identifying em radiation from asymmetrical differential-paired lines with equi-distance routing'. Together they form a unique fingerprint.

Cite this