带阻性负载细导线对电磁脉冲响应的有限差分算法
FDTD algorithm for EMP response calculation on thin wire with resistance load
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摘要: 在原始的FDTD细线算法基础上,把带负载细导线模型分成导线、电阻和吸收三个部分,分别用不同的偏微分方程描述,使其可以处理两端带有纯电阻性负载细线电磁脉冲散射问题,进而得到电阻负载上消耗的总能量及对应的功率消耗。用该方法计算得到的结果与文献结果进行了比较,证明了该方法的有效性。最后用此方法对一种典型情况进行了计算,并对结果进行了分析。该方法是对FDTD方法中细线算法的补充和提高,经过修改也可以用于非阻性负载的情况。Abstract: In this paper, a novel way that can be combined with FDTD methods to deal with the EMP response on thin wire with resistance load is developed, in which the thin wire is divided into three parts and described by different partial differential equations,respectively. This method can be used to calculate some coupling problems involving thin wires, which usually connected with circuit input or output ports. The dissipated energy and power on the equivalent resistance can be obtained. The results gotten from this new method are compared with the results from references,some typical results are given and analyzed as an example. Modified partly this algorithm can also be used to solve the nonresistance load cases.
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Key words:
- emp /
- fdtd /
- thin wire /
- resistance load
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