用半空间时域有限差分法分析机载天线阵照射下建筑物的电磁分布

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2018-12-01 DOI:10.1109/ISAPE.2018.8634116

Min Zhang, Lianyan Zhu

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引用次数: 0

摘要

在建筑物周围的电磁特性分析中，地面的影响是不可忽视的。为了解决这一问题，本文提出了一种非均匀网格的半空间FDTD方法。利用两个一维修正时域有限差分方程，建立了无限半空间电磁问题的TF/SF边界，从而在有限空间中求解半空间问题。采用非均匀网格法，减少了电大结构建筑物的计算时间和网格。最后，对机载天线阵照射下的建筑物电磁场进行了分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of Electromagnetic Distribution in Building Illuminated with Airborne Antenna Array by Using a Half-space FDTD

In the analysis of electromagnetic characters around the buildings, the effects of ground are non-ignorable. To solve the problem, a half-space FDTD method with nonuniform meshes is proposed in this paper. Two 1-D modified FDTD equations have been employed to set TF/SF boundary of the infinite half-space electromagnetic problems, then the half space problem can be solved in finite space. A method with non-uniform meshes is applied to reduce the calculation time and meshes of the building with an electrically large structure. Finally, the electromagnetic fields in Building which illuminated by the airborne antenna array is analysed.

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2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

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