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Scattering Characteristic Analysis for Absorbers Used in a Large Full Chamber with FDTD and UTD Methods

机译:用FDTD和UTD方法对大型全室中使用的吸收器的散射特性分析

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In this paper, the finite difference time domain (FDTD) method is used in the scattering characteristic analysis of absorbers. The absorbers are lined on the six walls of a full anechoic chamber. The relative permittivities of the absorber materials vary in the range. The large absorber-lined chamber has 36mx26mxl7m dimensions. Using different types of antenna sources, the scattering field results have been researched for the different lengths of absorbers. The frequency range evaluated is from 50MHz up to l0GHz. Same formulas of the Uniform Geometrical Theory of Diffraction(UTD) are used for the scattering analysis of absorbers. The results of the analysis should be of advantage to the design of the large chamber.
机译:本文中,有限差分时域(FDTD)方法用于吸收器的散射特性分析。吸收剂衬有六壁的完整化学腔室。吸收体材料的相对介质在该范围内变化。大吸收室具有36Mx26mx17m尺寸。使用不同类型的天线源,已经研究了不同长度的吸收器的散射场效果。评估的频率范围为50MHz至L0GHz。相同的衍射(UTD)的均匀几何理论公式用于吸收器的散射分析。分析结果应该有利于大室的设计。

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