A closed-form expression for estimating radiated emissions from the power planes in a populated printed circuit board

被引：31
|
作者：
Shim, HW [1 ]
Hubing, TH
机构：
[1] Samsung Corp, Gumi, South Korea
[2] Univ Missouri, Dept Elect & Comp Engn, Rolla, MO 65409 USA
来源：
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2006年 / 48卷 / 01期
关键词：
cavity model; decoupling; power bus noise; propagation constant; radiated emissions;
D O I：
10.1109/TEMC.2005.861377
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An expression for the maximum intensity of radiated emissions from a rectangular power bus structure has been derived based on an analytical cavity-resonator model. The effect of components mounted on the board is modeled by modifying the propagation constant of the waves within the power bus structure. The radiated field intensity is calculated using the equivalent magnetic current around the edges of the power bus structure together with the modified propagation constant. Measurements of Z a populated test board show that the derived closed-form expression estimates the level of the maximum radiation intensity with reasonable accuracy.
引用
收藏
页码：74 / 81
页数：8
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