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

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 com...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2011-02, Vol.53 (1), p.241-244
Main Authors: HWANG, Chulsoon, KIM, Jaemin, SONG, Eakhwan, SHIM, Yujeong, KIM, Joungho
Format: Article
Language:English
Subjects:
Applied sciences
Banded structure
Capacitance
Circuit boards
Circuit properties
Couplings
Electric, optical and optoelectronic circuits
Electromagnetic bandgap (EBG)
Electromagnetic compatibility
Electronic circuits
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Electronics industry
Estimation
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Impedance
Joining
Materials
Mathematical analysis
Metamaterials
Noise
Noise levels
Optical materials
Optics
Oscillators, resonators, synthetizers
partial EBG (PEBG)
Periodic structures
Phase constants
Photonic bandgap materials
Physics
Printed circuit boards
simultaneous switching noise (SSN)
via shield
Wideband
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Description
Summary: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.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2010.2065234