Darwin’s model is a reduced form of Maxwell’s equations, where radiations are neglected, while inductive, resistive, and capacitive effects are still taken into account. In this article, we propose a method for the efficient modeling of electrically long, thin wires using a Darwin-based integral equation approach, thus keeping the number of DoFs and runtime low. This model provides further numerical techniques to efficiently take into account special inhomogeneities via the modification of the Green’s functions unlike in full-wave models. The benefits are discussed through the example of the automotive CISPR 25 measurement setup.

中文翻译：

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采用准静态达尔文近似的细线积分方程公式


达尔文模型是麦克斯韦方程组的简化形式，其中忽略了辐射，而仍然考虑了电感、电阻和电容效应。在本文中，我们提出了一种使用基于达尔文的积分方程方法对电长细线进行有效建模的方法，从而保持较低的自由度数量和运行时间。该模型提供了进一步的数值技术，可以通过修改格林函数来有效地考虑特殊的不均匀性，这与全波模型不同。我们通过汽车 CISPR 25 测量设置示例讨论了这些好处。