ETRI Journal

  • 제35권5호
  • /
  • Pages.827-837
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  • 2013
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
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Application of VSI-EBG Structure to High-Speed Differential Signals for Wideband Suppression of Common-Mode Noise

  • Kim, Myunghoi (Broadcasting & Telecommunications Media Research Laboratory, ETRI) ;
  • Kim, Sukjin (Electrical Engineering, KAIST) ;
  • Bae, Bumhee (Electrical Engineering, KAIST) ;
  • Cho, Jonghyun (Electrical Engineering, KAIST) ;
  • Kim, Joungho (Electrical Engineering, KAIST) ;
  • Kim, Jaehoon (Broadcasting & Telecommunications Media Research Laboratory, ETRI) ;
  • Ahn, Do Seob (Broadcasting & Telecommunications Media Research Laboratory, ETRI)
  • 투고 : 2012.12.24
  • 심사 : 2013.04.11
  • 발행 : 2013.10.31
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초록

In this paper, we present wideband common-mode (CM) noise suppression using a vertical stepped impedance electromagnetic bandgap (VSI-EBG) structure for high-speed differential signals in multilayer printed circuit boards. This technique is an original design that enables us to apply the VSI-EBG structure to differential signals without sacrificing the differential characteristics. In addition, the analytical dispersion equations for the bandgap prediction of the CM propagation in the VSIEBG structure are extracted, and the closed-form expressions for the bandgap cutoff frequencies are derived. Based on the dispersion equations, the effects of the impedance ratio, the EBG patch length, and via inductances on the bandgap of the VSI-EBG structure for differential signals are thoroughly examined. The proposed dispersion equations are verified through agreement with the full-wave simulation results. It is experimentally demonstrated that the proposed VSI-EBG structure for differential signaling suppresses the CM noise in the wideband frequency range without degrading the differential characteristics.

키워드

참고문헌

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피인용 문헌

  1. Wideband common noise suppression filter based on coupled microstrip lines and edge-coupled coplanar waveguides vol.51, pp.25, 2013, https://doi.org/10.1049/el.2015.3186
  2. Multi-stack Technique for a Compact and Wideband EBG Structure in High-Speed Multilayer Printed Circuit Boards vol.38, pp.5, 2013, https://doi.org/10.4218/etrij.16.0115.0997
  3. Analytical Modeling of Metamaterial Differential Transmission Line Using Corrugated Ground Planes in High-Speed Printed Circuit Boards vol.8, pp.3, 2013, https://doi.org/10.3390/electronics8030299