In this paper, the effects of critical electron density of plasma and the plasma frequency of electron on the refraction, absorption and reflection of the electromagnetic wave are studied.
着重研究了等离子体临界电子密度、电子等离子体频率等参数对电磁波的折射、吸收、反射的影响。
Atmosphere absorbs the electromagnetic wave so that the radar detection distance be reduced, and the atmospheric unusual refraction changes the radar detection distance too.
大气环境对电磁波的吸收衰减作用使雷达的作用距离减小，大气异常折射现象使雷达的作用距离增大或减小。
Based on the finite element method (FEM), the negative-refraction (NR) property is demonstrated when the electromagnetic wave penetrates through free space into such SNG lamellar structure.
基于有限元方法，验证了当电磁波穿过此结构时的负折射性质。
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