Radiation Field Simulation and Interference Prediction of Electrostatic Discharge

WANG Xiangwei; WAN Fayu; FENG Chaochao; FAN Pan

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Radiation Field Simulation and Interference Prediction of Electrostatic Discharge

更新时间：2025-12-08

- Radiation Field Simulation and Interference Prediction of Electrostatic Discharge
- Vol. 43, Issue 10, Pages: 3396-3402(2017)
- 作者机构：
  
  1. 南京信息工程大学
  2. 2. 江苏北斗卫星导航检测中心有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 October 2017，
  
  Published：2017
- 稿件说明：
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WANG Xiangwei, WAN Fayu, FENG Chaochao, et al. Radiation Field Simulation and Interference Prediction of Electrostatic Discharge[J]. 2017, 43(10): 3396-3402.
DOI：

WANG Xiangwei, WAN Fayu, FENG Chaochao, et al. Radiation Field Simulation and Interference Prediction of Electrostatic Discharge[J]. 2017, 43(10): 3396-3402. DOI：

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 electrostatic discharge（ESD） process and its radiation field distribution deeply

and to solve the bad repeatability of measurement data and the difficulty of near field observation and measurement

we estalished an ESD 3 D electromagnetic model and verified the model by the combination of electromagnetic simulation and experiment.Moreover

we analyzed the characteristics of the radiation field of the horizontal coupling plate and the coupling voltage characteristics of equipment under test（EUT）.The study reveals that the radiation field of the horizontal coupling plate has the maximum electric field intensity at the discharge point

and the field strength decreases with the increase of the distance from the discharge point.Besides

the results of 3 D electromagnetic simulation show that the ESD radiation field is mainly coupled to the inside of the device through the gap and interface of the EUT shell.The coupling voltage is consistent with the test results.Therefore

in the design stage of electronic equipment

the 3-dimensional electromagnetic model can be used to verify its internal immunity

which helps to reduce research cost and improve pass rate of ESD immunity test.

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