Effect of Distance between Noise Source and Decoupling Capacitor on the EMI Performance of Power and Ground-Reference Planes

Abstract

The impact of distance between noise source and decoupling capacitor on the electromagnetic interference performance of power and ground-reference planes, was studied. Different physical parameters which included the distance between the plates, the distance between the source and the shorting via, and the diameter of the shorting via, were analyzed. Finite-difference time-domain techniques were used to find the affect of different configurations on impedance. a method of moments code and a partial element equivalent circuit code were used to find the impedance at lower frequencies. Results show that the impedance was converted into an apparent inductance that is constant across the frequency range of interest.

Department(s)

Electrical and Computer Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Applied Computational Electromagnetics Society (ACES), All rights reserved.

Publication Date

01 Dec 2003

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