任意形状导体瞬态分析的TD-EFIE方法

Jiang Guang-xing, C. Wei, Zhu Hong-bo
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引用次数: 0

摘要

本文提出了时域电场积分方程(TD-EFIE)方法分析各种天线和散射体的瞬变电磁响应。由于采用了EFIE,该方法既适用于封闭体,也适用于开放体。在分析中,外加电源和导体的形状是任意给定的。为了便于数值计算,采用平面三角形块对导电表面进行建模。首先研究了时间基函数对结果的影响,表明时间基函数的选择至关重要。为了克服后期振荡并保证解的精度,提出了一种平均方案。给出了若干数值算例,并与离散傅里叶反变换(IDFT)的结果进行了比较。两者之间的良好一致性表明了所提方法的正确性和有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
TD-EFIE approach to transient analysis of arbitrarily-shaped conductors
The time domain electric field integral equation (TD-EFIE) approach to analysis of transient electromagnetic response of various kinds of antennas and scatterers is presented in this paper. The method is applicable to both closed and open bodies because of the usage of EFIE. In the analysis, impressed sources and the shape of the conductors are arbitrarily given. The conducting surface is modeled by planar triangular patches for numerical purposes. The effects of temporal basis function on the results are studies firstly, which shows that the choice of temporal functions is vital importance. To overcome the late-time oscillation and keep the accuracy of the solution, an averaging scheme has been proposed. A number of numerical examples are given and the results are compared with ones obtained from inverse discrete Fourier transform (IDFT). The good agreement between them shows the correctness and effectiveness of the method proposed.
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