Novel Electromagnetic Bandgap with Triangular Unit Cells for Ultra-Broadband Suppression of Simultaneous Switching Noise

Jong Hwa KWON  Dong Uk SIM  Sang Il KWAK  Jong Gwan YOOK  

IEICE TRANSACTIONS on Communications   Vol.E92-B   No.6   pp.2356-2358
Publication Date: 2009/06/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.2356
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electromagnetic Compatibility(EMC)
electromagnetic band gap,  simultaneous switching noise electromagnetic compatibility,  power integrity,  

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To build a stable power distribution network for high-speed digital systems, simultaneous switching noise (SSN) should be sufficiently suppressed in multi-layer PCBs and packages. In this paper, a novel hybrid uni-planar compact electromagnetic bandgap (UC-EBG) with two triangular-type unit cells designed on power/ground planes is proposed for the ultra-broadband suppression of SSN. The SSN suppression performance of the proposed structure is validated both numerically and experimentally. A -35 dB suppression bandwidth for SSN is achieved, starting at 800 MHz and extending to 15 GHz and beyond, thereby covering almost the entire noise band.