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Appl. Sci. 2017, 7(8), 804; doi:10.3390/app7080804

A Compact and Multi-Stack Electromagnetic Bandgap Structure for Gigahertz Noise Suppression in Multilayer Printed Circuit Boards

1
Department of Electrical, Electronic, and Control Engineering, Institute for Information Technology Convergence, Hankyong National University, Anseong 17579, Korea
2
The Cho Chun Shik Graduate School for Green Transportation, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
*
Author to whom correspondence should be addressed.
Received: 28 June 2017 / Revised: 25 July 2017 / Accepted: 31 July 2017 / Published: 7 August 2017
(This article belongs to the Special Issue Printed Electronics 2017)
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Abstract

In modern printed electronics, the performances of a circuit and a device are severely deteriorated by the electromagnetic noise in the gigahertz (GHz) frequency range, such as the simultaneous switching noise and ground bounce noise. A compact and multi-stack electromagnetic bandgap (CMS-EBG) structure is proposed to suppress the electromagnetic noise over the GHz frequency range with a short distance between a noise source and a victim on multilayer printed circuit boards (MPCBs). The original configuration of the stepped impedance resonators is presented to efficiently form multiple stacks of EBG cells. The noise suppression characteristics of the CMS-EBG structure are rigorously examined using Floquet-Bloch analysis. In the analysis, dispersion diagrams are extracted from an equivalent circuit model and a full-wave simulation model. It is experimentally verified that the CMS-EBG structure suppresses the resonant modes over the wideband frequency range with a short source-to-victim distance; thus, this structure substantially mitigates GHz electromagnetic noise in compact MPCBs. View Full-Text
Keywords: electromagnetic bandgap; multi stack; noise suppression; printed circuit boards electromagnetic bandgap; multi stack; noise suppression; printed circuit boards
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kim, M.; Ahn, S. A Compact and Multi-Stack Electromagnetic Bandgap Structure for Gigahertz Noise Suppression in Multilayer Printed Circuit Boards. Appl. Sci. 2017, 7, 804.

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