In this paper, transmission-line (TL) theory is applied to formulate a worst-case analysis for the assessment of wideband intentional electromagnetic interference radiated onto a cable harness (with terminal units) above ground. Given the bandwidth and the energy density of the high-power electromagnetic pulse impinging on the cable, the pulse spectrum maximizing the peak value of the common-mode voltage waveform induced at a cable end is obtained. Unlike in a full-wave solution to the problem, the proposed TL model allows for, first, deriving closed-form expressions in the special case of a cable terminated in a matched load at the opposite end; second, computationally efficient evaluation of the spectrum for any other loading conditions. The obtained results clearly unveil the impact of the system parameters (cable length, height, terminal loads, and pulse bandwidth) on the statistics of the worst-case voltage peak for the random direction of incidence and polarization.

中文翻译：

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宽带辐射 IEMI 到地面电缆的耦合

在本文中，传输线 (TL) 理论应用于制定最坏情况分析，用于评估辐射到地面电缆线束（带有终端单元）上的宽带故意电磁干扰。给定冲击电缆的大功率电磁脉冲的带宽和能量密度，可以获得使电缆末端感应的共模电压波形峰值最大化的脉冲频谱。与该问题的全波解决方案不同，所提出的 TL 模型首先允许在电缆端接在另一端的匹配负载中的特殊情况下推导出闭式表达式；其次，对任何其他加载条件的频谱进行高效的计算评估。获得的结果清楚地揭示了系统参数（电缆长度、高度、终端负载、