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本文采用时域有限差分法 ,分析电磁脉冲作用下 ,地面附近同轴电缆所感应的外皮电流。在计算外皮感应电流时 ,既考虑了传输线模式电流 ,也考虑了天线电流。该方法适合分析各种电缆的外皮感应电流。所得结果与有关资料作了对比 ,说明本文的计算结果是合理的。
In this paper, the finite difference time domain method is used to analyze the skin current induced by the coaxial cable near the ground under the action of electromagnetic pulse. In the calculation of the skin induction current, both the transmission line mode current, also considered the antenna current. The method is suitable for analyzing the sheath induced current of various cables. The results obtained are compared with the relevant data, which shows that the calculation results in this paper are reasonable.