摘要
本文对一种新型的频率选择反射表面进行了理论研究。这种新型的反射表面是由一无限大理想导体平板后加载二维周期性腔体阵列所组成,它比导体平板上开有二维周期性孔阵有更好的反射选择特性。文中对平面波入射到二维周期性矩形腔阵列加载导电屏的反射特性进行了计算,给出了主模反射系数随频率腔长等参量变化的关系曲线。
In this paper, a new type of frequency selective reflecting surface is investigated theoretically. This new reflecting surface is comprised of an infinite perfectly conducting screen backed with a two-dimensional periodic array of cavities and exhibits reflection performance superior to a metallic screen perforated periodically with apertures. The reflection coefficients of a plane wave incident upon a conducting screen loaded periodically with rectangular cavities are calculated. Numerical results are presented for the variation of reflection coefficients with the frequency and the length of cavity.
出处
《系统工程与电子技术》
EI
CSCD
1992年第2期56-60,69,共6页
Systems Engineering and Electronics
关键词
电磁波
散射
频率选择
反射面
天线
Electromagnetic waves, Scattering, Cavity, Method of moments.
