Characteristics of radiated emission from a printed circuit board with a slit

被引：0

作者：

Nakayama, Kenichi ^{[1
]}

Kagoshima, Kenichi ^{[1
]}

Takeda, Shigeki ^{[1
]}

机构：

[1] Graduate School of Science and Engineering, Ibaraki University, 4-12-1, Nakanarusawa, Hitachi 316-8511, Japan

来源：

IEEJ Transactions on Fundamentals and Materials | 2012年 / 132卷 / 06期

关键词：

Timing circuits - Natural frequencies - Electric fields - Resonators;

D O I：

10.1541/ieejfms.132.404

中图分类号：

学科分类号：

摘要：

This paper describes the mechanism of radiated emission from a PCB (printed circuit board) with a slit. The multilayer PCB has a power plane and a ground plane, and they make up a parallel resonator. It is reported that when there is a slit at the power plane, the resonant frequencies are varied and the strength of radiated emission is also altered. However, the radiated emission from the PCB with a slit has not been cleared, although it is generally thought that the amount of the radiated emission will be increased. In this paper, the radiated emission from a PCB with a slit is measured and numerically analyzed using FDTD. It has been shown that the amount of radiated emission decrease at 1 st mode when there is a slit. And its reason has been also cleared by investigating both amplitude and phase of the tangential electric field on the PCB with a slit. © 2012 The Institute of Electrical Engineers of Japan.

引用

页码：404 / 410

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