In this article, a broadband equivalent circuit was developed to model the electromagnetic behavior of complex interconnection structures in metallic casings of arbitrary geometry. Based on the eigenfunctions of the system, this model is inherently stable in the time domain due to its passivity and allows simulation by a commercial circuit simulator with arbitrary linear or nonlinear port terminations. The typically slow convergence of the circuit model is accelerated by the extraction of quasi-static inductances and capacitances and losses are considered by additional resistive elements. The presented model is validated in the frequency domain by elaborate full-wave simulations.

中文翻译：

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任意形状的金属外壳中复杂互连网络的EMI分析的宽带电路模型

在本文中，开发了宽带等效电路以对任意几何形状的金属外壳中的复杂互连结构的电磁行为进行建模。基于系统的本征函数，该模型由于具有无源性，因此在时域内具有固有的稳定性，并可以通过带有任意线性或非线性端口终端的商用电路仿真器进行仿真。准静态电感和电容的提取会加速电路模型通常缓慢的收敛，而额外的电阻性元件会考虑损耗。通过精心设计的全波仿真，在频域中对所提出的模型进行了验证。