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一些大损耗介质填充圆柱双站RCS的矩量法分析

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一些大损耗介质填充圆柱双站RCS的矩量法分析

内容简介:用矩量法对一些用于雷达隐身技术和微波暗室设计的大损耗介电材料填充的无限长介质圆柱在TM波照射下的双站RCS进行了数值计算.仿真结果表明,大介电常数低损耗材料散射较弱.当ka0较小时,填充介质的电参数对散射的影响较明显,且随双站角增大缓慢减少;当ka0较大时,填充介质的电参数对散射的影响不明显,且散射能量集中于反射方向.

Abstract:Numerical computation of bistatic RCS is carried out by moment method for some infinite long cylinders filled with large loss dielectric (LLD) used in radar anti - stealthy technology and design of microwave dark rooms, in case of TM incident of wave. The simulation shows that the scattering is weak for materials with large permittivity and low loss. The electromagnetic parameters of filled dielectric have obvious effect on the scattering of the cylinders when ka0 is small, however, the effect becomes weaker with the increase of the angle between the cylinder to the two stations.When ka0 is large, the influence of electromagnetic parameters of the filled dielectric to RCS is weak, while the scattering energy gradually concentrates to the backward direction.

作者:董文峰, 傅文斌, 刘剑豪, 周健,

关键词:雷达散射截面, RCS, 大损耗介电材料, 雷达散射截面(RCS), 矩量法(MOM)

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