平面波垂直入射浸渍吸收剂蜂窝的反射特性

摘要

提出一个数值方法,计算当平面波垂直于蜂窝板入射时浸渍吸收剂的蜂窝的反射系数.在引入蜂窝壁表面阻抗后,借助于周期格林函数对无限大蜂窝表面建立了电场积分方程,用矩量法求解未知的表面电流.在8～12GHz频段内,得到的不同蜂窝高度、不同吸收剂和不同浸渍厚度的数值结果表明,所提出的方法是高效的,可用于蜂窝制备和吸波结构的工作中.%A numerical method for calculating the reflection coefficient of the impregnatedabsorbent honeycomb with plane wave normal incident to its broad face is presented. By introducing aconcept of impedance for the honeycomb wall and by the assistance of the periodic Green's function, theElectric Field Integral Equation for the infinite honeycomb surface is established and the unknownsurface current is solved by the method of moment. Numerical results are obtained for various heights,different absorbent parameters and various impregnated thickness within the frequency band 8 ～12 GHz.It shows the proposed method is of high efficiency and can be used in the honeycomb fabrication andapplication of structural absorbers.