This article presents an equivalent circuit modeling method for the impedance calculation of the loaded power distribution network (PDN). The topology of the proposed equivalent circuit is based on the modal field analysis of the PDN, so that the elements in the circuit possess certain physical meaning. The element values in the equivalent circuit are extracted from a circuit perspective. Using the proposed equivalent circuit and the interpolation method, the calculation efficiency of the proposed method is greatly improved. Compared with the traditional mode method which is limited for the modeling of the regular-shaped PDN, the proposed equivalent circuit method can be used for the modeling of both grid-type and plane PDNs with nonuniform, irregular-shaped, and shorting via-loaded structures. To verify the accuracy of the proposed equivalent circuit, two different samples are simulated and fabricated, and the impedance obtained from the measurement shows good agreements with that obtained from the proposed method.

中文翻译：

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任意形状的有负载非均匀网格配电网建模

本文提出了一种等效的电路建模方法，用于计算负载配电网（PDN）的阻抗。提出的等效电路的拓扑结构基于PDN的模态场分析，因此电路中的元素具有一定的物理意义。从电路角度提取等效电路中的元素值。使用所提出的等效电路和内插方法，大大提高了所提出方法的计算效率。与传统的受限于常规形状的PDN建模的模式方法相比，该等效电路方法可用于具有不均匀，不规则形状和短路过孔加载的网格型和平面型PDN的建模。结构。