Stopband analysis using dispersion diagram for two-dimensional electromagnetic bandgap structures in printed circuit boards

Yoshitaka Toyota, Arif Ege Engin, Tae Hong Kim, Madhavan Swaminathan

Research output: Contribution to journalArticle

26 Citations (Scopus)


Electromagnetic bandgap (EBG) structures that provide an excellent isolation within the stopband are extremely effective in suppressing propagation of simultaneous switching noise on parallel power planes. However, a scattering parameter measurement and full-wave electromagnetic simulation for their entire structure are costly and time consuming. This letter presents a two-dimensional dispersion-diagram analysis based on a unit-cell network of EBG structures by extending a well-known dispersion-diagram analysis of one-dimensional infinite periodic structures. The approach is extremely effective in computing stopband frequencies and provides the stopbands with good agreement to the measured results.

Original languageEnglish
Pages (from-to)645-647
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number12
Publication statusPublished - Dec 2006



  • Electromagnetic bandgap (EBG) structures
  • Four-port network
  • Parallel power planes
  • Periodic structures
  • Printed circuit boards (PCBs)
  • Simultaneous switching noise (SSN)
  • Two-dimensional (2-D) dispersion-diagram analysis

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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