Title

A Wideband and Compact Partial Electromagnetic Bandgap Structure with a Narrow Via Pitch for a Signal Via Shield

Abstract

A wideband and compact partial electromagnetic bandgap (PEBG) structure and a corresponding stopband-estimation model are proposed for the suppression of simultaneous switching noise (SSN) coupling in a multilayer printed circuit board. The proposed PEBG structure achieves a wide stopband with a compact size by adopting a geometric arrangement of patches that allows for a periodic narrow via pitch (NVP). In addition, the lumped capacitance model of the previously reported effective phase constant equation is replaced with the resonant cavity model to obtain the precise impedance of the patch in high frequency. Finally, it was successfully verified that, by applying the NVP-PEBG structure, wideband suppression of SSN coupling to the signal via is achieved with a bandwidth of 11.2 GHz below -40 dB. The proposed estimation model was validated through experimental measurements.

Department(s)

Electrical and Computer Engineering

Comments

This work was supported by the IT R&D program of MKE/KEIT. [KI002134, Wafer Level 3D IC Design and Integration]

Keywords and Phrases

Electromagnetic Bandgap (EBG); Partial EBG (PEBG); Simultaneous Switching Noise (SSN); Via Shield

International Standard Serial Number (ISSN)

189375

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2011 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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