Dispersion analysis and design of planar electromagnetic bandgap ground plane for broadband common-mode suppression

Jun H. Choi; Philip W.C. Hon; Tatsuo Itoh

doi:10.1109/LMWC.2014.2303166

Dispersion analysis and design of planar electromagnetic bandgap ground plane for broadband common-mode suppression

Jun H. Choi, Philip W.C. Hon, Tatsuo Itoh

Department of Electrical Engineering & Computer Science

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

A planar electromagnetic bandgap (EBG) structure designed for broadband common-mode suppression is proposed. A uniplanar compact photonic-bandgap (UC-PBG) structure with periodic center slots is etched on the ground plane to obtain broadband common mode suppression while minimally disturbing the differential signal within the designed bandwidth. Dispersion analysis has been conducted for both common (even) and differential (odd) mode signals. Good signal integrity is observed in both simulated and measured results. The fractional bandwidth of the proposed EBG ground plane is around 70% with common-mode suppression below - 20 dB. The proposed EBG ground planes may be applicable for systems requiring low-cost and simple solutions in designing high-speed differential interlinks operating above 5 Gbps.

Original language	English (US)
Article number	6740093
Pages (from-to)	772-774
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	24
Issue number	11
DOIs	https://doi.org/10.1109/LMWC.2014.2303166
State	Published - Nov 1 2014

Keywords

Common-mode suppressor
differential transmission lines
dispersion engineering
electromagnetic bandgap (EBG)

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/LMWC.2014.2303166

Cite this

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title = "Dispersion analysis and design of planar electromagnetic bandgap ground plane for broadband common-mode suppression",

abstract = "A planar electromagnetic bandgap (EBG) structure designed for broadband common-mode suppression is proposed. A uniplanar compact photonic-bandgap (UC-PBG) structure with periodic center slots is etched on the ground plane to obtain broadband common mode suppression while minimally disturbing the differential signal within the designed bandwidth. Dispersion analysis has been conducted for both common (even) and differential (odd) mode signals. Good signal integrity is observed in both simulated and measured results. The fractional bandwidth of the proposed EBG ground plane is around 70% with common-mode suppression below - 20 dB. The proposed EBG ground planes may be applicable for systems requiring low-cost and simple solutions in designing high-speed differential interlinks operating above 5 Gbps.",

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Dispersion analysis and design of planar electromagnetic bandgap ground plane for broadband common-mode suppression

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Keywords

ASJC Scopus subject areas

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