A compact common-mode suppression filter using modified ground structure for high speed digital interconnects on multi-layered PCB

Ho Seong Lee, Tae Wan Koo, Tae Lim Song, Jong Gwan Yook, Kyungho Yoo, Jeongnam Cheon, Shinyoung Lee

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

1 Citation (Scopus)

Abstract

A compact common-mode suppression filter is proposed by employing the modified ground structure (MGS) for high speed digital interconnects using differential signals on the multi-layered printed circuit board (PCB). It consists of two folded U-shaped slot resonators and arranged via-holes. It has compact size of 0.073λg × 0.225λg when the center frequency is 5.2 GHz. A test board is fabricated on four-layered PCB through an optimizing process for verifying effects of the proposed MSG structure. The proposed MGS can suppress the common-mode noise over 10 dB from 4.34 to 6.07 GHz in the frequency domain and over 52% of amplitude in the time domain. Furthermore, the proposed filter still keeps good signal integrity characteristics with regard to the insertion loss of differential-mode signals. It is clear that the proposed filter structure can apply to the multi-layered PCB of commercial mobile devices due to its compact size and have some advantages such as wide bandwidth, gigahertz frequency range, low cost, and PCB embedded design.

Original languageEnglish
Title of host publicationIEEE International Symposium on Electromagnetic Compatibility
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages730-734
Number of pages5
ISBN (Electronic)9781479932252
DOIs
Publication statusPublished - 2014 Oct 20
Event2014 International Symposium on Electromagnetic Compatibility, EMC Europe 2014 - Gothenburg, Sweden
Duration: 2014 Sep 12014 Sep 4

Publication series

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

Other

Other2014 International Symposium on Electromagnetic Compatibility, EMC Europe 2014
CountrySweden
CityGothenburg
Period14/9/114/9/4

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Lee, H. S., Koo, T. W., Song, T. L., Yook, J. G., Yoo, K., Cheon, J., & Lee, S. (2014). A compact common-mode suppression filter using modified ground structure for high speed digital interconnects on multi-layered PCB. In IEEE International Symposium on Electromagnetic Compatibility (pp. 730-734). [6931000] (IEEE International Symposium on Electromagnetic Compatibility). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EMCEurope.2014.6931000