Optimal design of vialess open-stub EBG structure for power-bus noise reduction

Kohtaro Okimoto, Kengo Iokibe, Yoshitaka Toyota, Koichi Kondo, Shigeyoshi Yoshida, Toshiyuki Kaneko

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

1 Citation (Scopus)

Abstract

To overcome the intra EMC problems in wireless communications, electromagnetic bandgap (EBG) structures can be used to effectively reduce power-bus noise. We previously proposed a vialess open-stub EBG structure. However, it still has the intrinsic disadvantage of a narrow stopband because it uses the open-stub's resonance. Thus, this paper aims to optimize the structural parameters of the vialess open-stub EBG structure to sufficiently suppress power-bus noise in a wider stopband. The structural parameters to determine the noise-reduction performance of the vialess open-stub EBG structure are the branch width Wb, the stub width Ws, and the unit-cell length a. Rectangular power buses were designed as test vehicles through the analytical approach and used to evaluate the stopband expansion and the noise suppression in the stopband in a full-wave simulation. The transmission characteristics showed that, after wb, Ws, and a are optimized, the stopband is expanded from 0.61 GHz (2.23-2.84 GHz) to 1.56 GHz (2.20-3.76 GHz). In addition, an optimized structure was made that reduced the amount of noise by approximately 10 dB.

Original languageEnglish
Title of host publication2016 IEEE CPMT Symposium Japan, ICSJ 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages243-246
Number of pages4
ISBN (Electronic)9781509020379
DOIs
Publication statusPublished - Dec 28 2016
Event2016 IEEE CPMT Symposium Japan, ICSJ 2016 - Kyoto, Japan
Duration: Nov 7 2016Nov 9 2016

Other

Other2016 IEEE CPMT Symposium Japan, ICSJ 2016
CountryJapan
CityKyoto
Period11/7/1611/9/16

Keywords

  • electromagnetic bandgap (EBG)
  • open stub
  • optimal design
  • stopband
  • suppression
  • vialess

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Okimoto, K., Iokibe, K., Toyota, Y., Kondo, K., Yoshida, S., & Kaneko, T. (2016). Optimal design of vialess open-stub EBG structure for power-bus noise reduction. In 2016 IEEE CPMT Symposium Japan, ICSJ 2016 (pp. 243-246). [7801273] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICSJ.2016.7801273