Weak-coupled cross-sectional differential-paired lines with bend discontinuities for SI and EMI performances

Yoshiki Kayano, Masashi Ohkoshi, Hiroshi Inoue

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

4 Citations (Scopus)

Abstract

For differential-signaling system, the ideal balance or symmetrical topology cannot be established due to bend (turnoff point) discontinuities, and hence, an imbalance component is excited. Therefore methodology and geometrical-structure for satisfying both SI and EMI performances are indispensable. In order to provide basic considerations for the realization of methods for predicting and suppressing the EM radiation from asymmetrical differential-paired lines, the imbalance component and EMI from strong and weak coupled differential-paired lines with bend discontinuities were studied experimentally and with modeling. Firstly differential-mode impedance and the mixed-mode scattering parameters are discussed, from view point of SI performance. Secondly, frequency response of electric field near a PCB are discussed, from view point of EMI. It is demonstrated that the differential-paired line with weak-coupling is suitable for improving the SI performance and suppressing the EMI. This study has successfully reported the basic characteristics of imbalance component of differential-paired lines with bend routing and demonstrates the dominant factor of imbalance component.

Original languageEnglish
Title of host publicationEMC 2014/Tokyo - 2014 International Symposium on Electromagnetic CompatibiIity, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages133-136
Number of pages4
ISBN (Electronic)9784885522871
Publication statusPublished - 2014 Dec 23
Event2014 International Symposium on Electromagnetic CompatibiIity, EMC 2014 - Tokyo, Japan
Duration: 2014 May 122014 May 16

Publication series

NameIEEE International Symposium on Electromagnetic Compatibility
Volume2014-December
ISSN (Print)1077-4076
ISSN (Electronic)2158-1118

Other

Other2014 International Symposium on Electromagnetic CompatibiIity, EMC 2014
CountryJapan
CityTokyo
Period14/5/1214/5/16

Keywords

  • common-mode
  • differential-mode
  • differential-paired lines
  • differential-signaling
  • imbalance

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Kayano, Y., Ohkoshi, M., & Inoue, H. (2014). Weak-coupled cross-sectional differential-paired lines with bend discontinuities for SI and EMI performances. In EMC 2014/Tokyo - 2014 International Symposium on Electromagnetic CompatibiIity, Proceedings (pp. 133-136). [6997117] (IEEE International Symposium on Electromagnetic Compatibility; Vol. 2014-December). Institute of Electrical and Electronics Engineers Inc..