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Journal Article A Compact EBG Structure With Wideband Power/Ground Noise Suppression Using Meander-Perforated Plane
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Authors
Myunghoi Kim
Issue Date
2015-06
Citation
IEEE Transactions on Electromagnetic Compatibility, v.57, no.3, pp.595-598
ISSN
0018-9375
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/TEMC.2015.2405615
Abstract
In this letter, we propose a miniaturized and wideband electromagnetic bandgap (EBG) structure with a meander-perforated plane (MPP) for power/ground noise suppression in multilayer printed circuit boards. The proposed MPP enhances the characteristic impedance of the EBG unit cell and improves the slow-wave effect, thus achieving the significant size reduction and the stopband enhancement. To explain the prominent results, a dispersion analysis for the proposed MPP-EBG structure is developed. Compared to a mushroom-type EBG structure, it is experimentally demonstrated that the MPP-EBG structure presents a 57% reduction in the start frequency of the bandgap, which leads to a 74% reduction in a unit cell size. In addition, the MPP-EBG structure considerably improves the noise suppression bandwidth (-40 dB) from 0.8 to 4.9 GHz compared to the mushroom-type EBG structure.
KSP Keywords
Compact EBG structure, Dispersion analysis, Electromagnetic bandgap (EBG) structure, Size reduction, Slow-wave effect, Unit cell size, characteristic impedance, noise suppression, power/ground noise, printed circuit board(PCB)