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.
出处
《飞机设计》
2008年第4期48-52,共5页
Aircraft Design
关键词
计算电磁学
空间回路网法
格栅结构
computational electromagnetics
spatial network method （SNM）
grid structure
