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The Characteristic Research of Electromagnetic Wave Propagation in the Building

In this paper, a large-scale parallel FDTD method is presented to study the characteristics of electromagnetic wave propagating in the building. The structure of the building is complex, which contains multiple fine structures and a variety of materials, such as ground, concrete wall, window, door and so on. The large-scale parallel FDTD method combined with an auto mesh generation technique and non-uniform mesh technique is used to model the building rapidly, and then the electric fields in the building are obtained via this method. The results computed by the parallel FDTD method are compared with that obtained by commercial electromagnetic software to verify the correctness of the parallel FDTD method. Meanwhile, the maximum electric field distributions and the signal blind zones in this building are given.