The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Transfer Characteristic for Various Noise Source Positions and Power Bus Noise Reduction Method using Elevated Ground Island in High Speed PCBs

고속 인쇄회로기판에서 잡음원 위치에 따른 전도 잡음 특성 분석 및 부양된 접지 아일랜드를 이용한 전원부 잡음 감소 방법

  • Published : 2003.03.01
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Abstract

In this paper, design rule of power island is studied. Power island have a defect that increase transfer noise when each power bus structure is resonant. So, in this paper, resonances are suppressed for various noise source positions and in order to improve noise characteristics, it is suggested EGI in order to improve noise characteristic. At the simulation result, the least resonance is showed for various noise source position and transfer impedance with power bus resonance is reduced about 11 $\Omega$ by EGI.

본 논문에서는 파워 아일랜드(power island)의 설계지침을 연구하였다. 일반적으로 파워 아일랜드는 각 파워버스(power bus)의 구조적 공진에 의해 잡음 전달이 증가하는 단점이 있다. 따라서 본 논문에서는 잡음원의 위치를 변화시킴으로서 공진을 억제하였으며 개선된 잡음 특성을 위해서 EGI(Elevated Ground Island)를 제안하였다. 해석결과, 잡음원의 위치에 따라 파워 버스의 공진을 최소로 감소시켰으며, EGI를 이용하여 공진에 의해 발생되는 잡음 전달을 11 $\Omega$까지 감소시켰다.

Keywords

References

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