摘要
叙述了有限尺寸平板频率选择表面(FSS)的散射机理,利用FEM-IE混合算法对有限尺寸(L<10λ)未加载介质的圆环形和Y形孔径及贴片单元平面FSS的单站雷达散射截面积(RCS)进行了仿真计算,并与同尺寸金属板对比,仿真结果得出:FSS的RCS与反射系数、透射系数是有关系的,其RCS主要由表面电场分布决定,对于有限尺寸的平板FSS,边缘截断效应是影响其RCS的主要因素,同时,FSS确实能够达到缩减RCS的目的。
A brief introduction of the scattering characteristics of finite plane frequency selective surface（FSS） is given. With re- gard to the free-standing Y-shape and annular FSS that are both in aperture and patched pattern, the simulation and computation of the monostatic RCS of the models above are finished. Compared with the same-sized metallic plate respectively, conclusions can be drawn as follows ： the RCS of plane FSS has something with the reflection and transmission properties, and its RCS is mainly deter- mined by its E-field distribution. As to the finite plane FSS, edge effect makes a great contribution to its RCS, and at the same time, FSS does do well in RCS reduction.
出处
《现代雷达》
CSCD
北大核心
2014年第12期62-65,共4页
Modern Radar
关键词
频率选择表面
散射截面积
边缘效应
frequency selective surface
radar cross section
edge effect
