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Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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ANALYSIS AND SUPPRESSION ON SIMULTANEOUS SWITCHING NOISE COUPLING BETWEEN MULTI-CAVITIES FOR MULTILAYER PCBs

By C.-S. Chang, M.-P. Houng, D.-B. Lin, K.-C. Hung, and R.-F. Hong

Full Article PDF (317 KB)

Abstract:
In this letter, an easy concept to eliminate the simultaneous switching noise (SSN) in multilayer board is proposed. Use of the low impedance element provides a short path to lead noise to ground, called virtual shield. This method could effectively suppress the first mode of the parallel resonance, and the wider-band suppression could be obtained by array short via. It is also proved that the virtual shield concept has to be placed as the excited source at the same layer.

Citation:
C.-S. Chang, M.-P. Houng, D.-B. Lin, K.-C. Hung, and R.-F. Hong, "Analysis and Suppression on Simultaneous Switching Noise Coupling Between Multi-Cavities for Multilayer Pcbs," Progress In Electromagnetics Research Letters, Vol. 5, 167-174, 2008.
doi:10.2528/PIERL08112501

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