静电放电辐射场模拟及干扰预测

发布时间：2018-08-23 14:01

【摘要】：为了深入研究静电放电(ESD)过程及其辐射场情况,解决实验测量数据重复性差、近场辐射场特性难以观测等问题。通过电磁仿真与实验相结合的方法建立ESD模拟器3维电磁模型,验证分析对水平耦合板放电的辐射场特性和受试设备(EUT)的耦合电压特性。研究发现:对水平耦合板放电的辐射场在放电点有最大电场强度,且电场强度随着与放电点距离的增加而呈现先快后慢的衰减。3维电磁仿真结果表明:ESD辐射场主要通过EUT壳体表面的缝隙和接口耦合到设备内部,耦合电压与测试结果一致。因此在电子设备设计阶段可利用该3维电磁模型对其内部抗扰度进行验证,从而降低电子设备抗干扰研发成本,提高设备ESD抗扰度测试过关率。
[Abstract]:In order to study the (ESD) process and radiation field of electrostatic discharge (ESD), the problems such as poor repeatability of experimental data and difficulty in observing the characteristics of near-field radiation field are solved. The three-dimensional electromagnetic model of ESD simulator was established by combining electromagnetic simulation and experiment. The radiation field characteristics of horizontal coupled plate discharge and the coupling voltage characteristics of (EUT) were analyzed. It is found that the radiation field of the horizontal coupled plate discharge has the maximum electric field intensity at the discharge point. With the increase of the distance between the electric field and the discharge point, the electromagnetic simulation results show that the radiation field of EUT is coupled to the device mainly through the gap and interface on the surface of the EUT shell, and the coupling voltage is consistent with the measured results. Therefore, in the design phase of electronic equipment, the 3D electromagnetic model can be used to verify the internal immunity of electronic equipment, so as to reduce the cost of anti-interference research and development of electronic equipment, and improve the test clearance rate of ESD immunity of the equipment.
【作者单位】：南京信息工程大学;江苏北斗卫星导航检测中心有限公司;
【基金】：国家自然科学基金(61601233;61750110535) 国防预研项目(6140209050116ZK53001) 江苏省自然科学基金(BK20150918) 江苏省双创团队人才计划(SRCB201526) 江苏高校优势学科项目(1081080015001)~~
【分类号】：O441.1

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