[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.6109/jicce.2017.15.4.237

Electromagnetic Interference Analysis of an Inhomogeneous Electromagnetic Bandgap Power Bus for High-Speed Circuits

Cho, Jonghyun (Rambus Inc.)
Kim, Myunghoi (Department of Electrical, Electronic, and Control Engineering and Institute for Information Technology Convergence, Hankyong National University)

Publication Information

Journal of information and communication convergence engineering / v.15, no.4, 2017 , pp. 237-243 More about this Journal

Abstract

This paper presents an analysis of the electromagnetic interference of a heterogeneous power bus where electromagnetic bandgap (EBG) cells are irregularly arranged. To mitigate electrical-noise coupling between high-speed circuits, the EBG structure is placed between parallel plate waveguide (PPW)-based power buses on which the noise source and victim circuits are mounted. We examine a noise suppression characteristic of the heterogeneous power bus in terms of scattering parameters. The characteristics of the dispersion and scattering parameters are compared in the sensitivity analysis of the EBG structure. Electric field distributions at significant frequencies are thoroughly examined using electromagnetic simulation based on a finite element method (FEM). The noise suppression characteristics of the heterogeneous power bus are demonstrated experimentally. The heterogeneous power bus achieves significant reduction of electrical-noise coupling compared to the homogeneous power buses that are adopted in conventional high-speed circuit design. In addition, the measurements show good agreement with the FEM simulation results.

Keywords

Electromagnetic bandgap (EBG); Electromagnetic interference; Inhomogeneous power bus;

Citations & Related Records

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