基于矩量法的二维导体粗糙面HPM传输特性分析

Scattering Property Analysis of High Power Microwave at PEC Rough Surface Based on the Method of Moment

采用矩量法(MOM)对高功率微波(HPM)近地面传输进行了仿真,近地面采用理想导体(PEC)的高斯随机粗糙面进行模拟。通过数值计算结果分析了入射角和均方根高度对HPM近地面传输特性的影响,得出以下主要结论:HPM在近地面传输,受到粗糙面均方根高度的影响较大,当均方根高度较小时,镜面反射方向的衰减越小,其它方向的衰减越大;当均方根高度较大时,各个方向的能量分布较为均匀,衰减都较大。同时各个方向的衰减也受到入射角度的影响,入射角越大衰减越小。

High power microwave （HPM） subaerial propagation is simulated with the method of moment. The rough surface is a perfect conductor and satisfies Gaussian Distribution. The effect of the incident angle and root-mean-square height on scattering properties is analyzed by numerical scattering model on the rough surface. Then some useful conclusions are made. Transmission is impacted on root-mean-square height of the rough surface. The greater the root-mean-square height, the greater the attenuation. Affected areas of HPM get less with greater incident angle, so the greater the incident the angle, the less the attenuation.