A new method to visualize the coupling path is proposed to help solve electromagnetic compatibility problems. By using the reciprocity theorem and the concept of reaction, the coupling density coefficient (CC) is defined. Integration of the CC on closed surfaces equals the coupled power at the receiver. By plotting the CC on a set of surfaces from the source to the receiver, the coupling path, which traces the coupled power flow, can be visualized. All visualization procedures can be performed in a full-wave simulation tool, thus making the proposed method convenient to use. To validate and demonstrate the potential benefits of the new method, visualization of the coupling path in a realistic automotive intentional electromagnetic interference problem is presented. In addition, a mitigation solution based on the visualization result was examined.

中文翻译：

---

耦合路径可视化及其在防止电磁干扰中的应用

提出了一种可视化耦合路径的新方法，以帮助解决电磁兼容性问题。通过使用互易定理和反应的概念，定义了耦合密度系数（CC）。CC 在闭合表面上的积分等于接收器处的耦合功率。通过在从源到接收器的一组表面上绘制 CC，可以可视化跟踪耦合功率流的耦合路径。所有可视化程序都可以在全波仿真工具中执行，从而使所提出的方法易于使用。为了验证和展示新方法的潜在优势，呈现了现实汽车故意电磁干扰问题中耦合路径的可视化。此外，还检查了基于可视化结果的缓解解决方案。