Modeling and application of equivalent source of electromagnetic pulse coupling effects
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摘要: 结合二端口网络理论和频域电磁场混合势积分方程的矩量法，对带有电缆线屏蔽体的电磁脉冲耦合效应进行了等效源模型建模。采用全波分析提取外部电磁脉冲干扰的等效源参数，利用场路结合的方法，以调制高斯脉冲为例，实现了屏蔽体内电路板上电磁耦合效应的分析。仿真结果表明：在0.1～7.5 GHz频带范围内，构建的电磁干扰等效源模型与商业软件仿真结果吻合得很好，可以为复杂电磁脉冲耦合效应的定量分析提供了一种有效便捷的研究方法，为电路工作安全防护提供理论参考。Abstract: Combing 2-port network theory with Mixed Potentials Integral Equation and Method of Moments (MPIE-MoM), the equivalent source of electromagnetic pulse coupling effects of shielding with cables is modeled. Taking a Gaussian pulse for example, the electromagnetic sensitivity of the internal circuits is analyzed using the field-circuit method. The simulated results of the presented method tallies well with that with the commercial software in the frequency range of 0.1-7.5 GHz, which provides theory reference to the quantitative analysis of the electromagnetic pulse coupling effect and the circuit safety protection in complex electromagnetic interference irradiation environment.
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