空间回路网法在隐身结构电磁散射计算中的应用  

Application of Spatial Network Method in the Analysis of EM Scattering of Stealth Structures

作　　者：彭兴林[1] 徐元铭[1] 梁东平[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083

出　　处：《飞机设计》2008年第4期48-52,共5页Aircraft Design

摘　　要：随着计算机技术的发展,计算电磁学得到了极大地发展和运用。它可以通过数值计算得到描述宏观电磁场的M axwell方程组的解,从而分析介质的电磁性能。本文介绍了空间回路网法(SNM)的基本原理和使用方法。并计算了8 GHz平面波条件下的正方形格栅结构的反射率,通过比较发现单元尺寸为半波长时,电磁波吸收性能强于1倍波长情况。Along with the development of computer technology, Computational Electromagneties have got a great progress and use, The results of Maxwell＇s equation described the macroseopical EM are arrived with the numerical calculation and the study analyzes the EM field of a medium. This paper addresses the basic contents and use of the spatial network method （SNM） , calculates the RCS of a square grid, and then finds that the absorbing ability of a grid structure with a half wavelength long of the cell is better than one wavelength.

关 键 词：计算电磁学 空间回路网法 格栅结构 

分 类 号：TB33[一般工业技术—材料科学与工程] O316[理学—一般力学与力学基础]