Partial EBG structure with DeCap for ultra-wideband suppression of simultaneous switching noise in a high-speed system

Jong Hwa Kwon, Sang II Kwak, Dong Uk Sim, Jong Gwan Yook

Research output: Contribution to journalArticle

19 Citations (Scopus)


To supply a power distribution network with stable power in a high-speed mixed mode system, simultaneous switching noise caused at the multilayer PCB and package structures needs to be sufficiently suppressed. The uniplanar compact electromagnetic bandgap (UC-EBG) structure is well known as a promising solution to suppress the power noise and isolate noise-sensitive analog/RF circuits from a noisy digital circuit. However, a typical UCEBG structure has several severe problems, such as a limitation in the stop band's lower cutoff frequency and signal quality degradation. To make up for the defects of a conventional EBG structure, a partially located EBG structure with decoupling capacitors is proposed in this paper as a means of both suppressing the power noise propagation and minimizing the effects of the perforated reference plane on the signal quality. The proposed structure is validated and investigated through simulation and measurement in both frequency and time domains.

Original languageEnglish
Pages (from-to)265-272
Number of pages8
JournalETRI Journal
Issue number2
Publication statusPublished - 2010 Apr 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Electrical and Electronic Engineering

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