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首页> 外文期刊>Mathematical Problems in Engineering >Time Domain Electromagnetic Transient Analysis of Aerial Nonuniform Transmission Lines Excited by an Incident Electromagnetic Field
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Time Domain Electromagnetic Transient Analysis of Aerial Nonuniform Transmission Lines Excited by an Incident Electromagnetic Field

机译：事件电磁场激发的空中非均匀传输线时域电磁瞬态分析

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摘要

In this paper a model for Nonuniform Transmission Lines for electromagnetic transient analysis that incorporates frequency dependency of electrical parameters, variation of line electrical parameters with respect to distance, and distributed excitations due to incident electromagnetic fields is presented. The model is developed using the Method of Characteristics in the actual physical domain instead of the Modal Domain; this simplifies the mathematical development and the final equations. Moreover, the equations of the resultant model are valid either for two-conductor lines or for multiconductor lines without any change; this can be an advantage when the computer programming language considers a scalar as a 1x1 matrix. The proposed numerical model is developed under the hypothesis that the dielectric surrounding the conductors is homogenous. It is shown that in this case the characteristic curves of a Nonuniform Transmission Line become straight lines. Finally, the model is validated by comparison with results obtained using the Numerical Laplace Transform method.
机译：在本文中，介绍了一种用于电磁瞬态分析的非均匀传输线的模型，其包括电参数的频率依赖性，呈现了线电参数相对于入射电磁场引起的分布式激励的函数。该模型是使用实际物理域中的特征方法而不是模态域开发的模型;这简化了数学开发和最终方程。此外，所得模型的等式对于两导体线或用于多导体线而无需任何变化;当计算机编程语言认为标量为1x1矩阵时，这可以是一个优势。所提出的数值模型是在假设下开发的，即导体周围的电介质是均匀的。结果表明，在这种情况下，非均匀传输线的特性曲线成为直线。最后，通过使用数值拉普拉斯变换方法获得的结果进行验证，验证模型。

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