Heatsink grounding effect on radiated emission of electronic device

机译：散热器接地对电子设备辐射的影响

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Heatsink is an indispensable component in electronic device. However, containing emissions from heatsink is rapidly becoming a necessity caused by higher power levels and faster clocking of digital circuits, it affects the sensitive circuit. Some grounding schemes of heatsink are presented and calculated applying the FDTD method. It is shown that different grounding point affect the electromagnetic characteristic of a heatsink differently,. and more grounding points do not mean the improvement of electromagnetic characteristic. Considering four grounding points, four edge centered ground points is selected for a small electromagnetic field.

机译：散热器是电子设备中必不可少的组件。但是，由于较高的功率水平和数字电路的更快时钟，抑制散热器散发出来的热量已成为必需品，它影响了敏感电路。提出了一些散热器的接地方案，并采用FDTD方法进行了计算。结果表明，不同的接地点对散热器的电磁特性有不同的影响。并且更多的接地点并不意味着电磁特性的改善。考虑到四个接地点，对于一个小的电磁场，选择四个边缘居中的接地点。

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《Electromagnetic Compatibility, 2002 3rd International Symposium on》|2002年|p.4-9|共6页
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Rong Li; Lin-Chang Zhang;
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正文语种
中图分类无线电电子学、电信技术;
关键词
earthing; electromagnetic interference; heat sinks; finite difference time-domain analysis; electromagnetic fields; heatsink grounding effect; radiated emission; electronic device; power levels; digital circuits clocking; grounding schemes; FDTD meth;

机译：接地;电磁干扰;散热片;时域有限差分分析;电磁场散热器接地效果;辐射发射;电子设备;功率水平;数字电路时钟;接地方案; FDTD方法;

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Heatsink grounding effect on radiated emission of electronic device

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