电磁波在等离子体层中衰减的数值分析  

Numerical Analysis of Attenuation of Electromagnetic Wave in Non-Uniform Magnetized Plasma Slab

作　　者：王华东[1] 鄢扬[1] 郭军[1] 

机构地区：[1]电子科技大学物理电子学院,成都610054

出　　处：《电子科技大学学报》2004年第4期357-360,共4页Journal of University of Electronic Science and Technology of China

基　　金：国防科技重点实验基金资助项目

摘　　要：采用分层介质方法处理非均匀等离子体层,研究了电磁波射向覆盖磁化等离子体层的金属平板时电磁波的衰减特性。着重讨论Epstein密度分布的等离子体层,分析了等离子体电子密度、电子碰撞频率、外加磁场和入射角度等因素对电磁波衰减的影响,得出在一定等离子体密度和电子碰撞频率下,等离子体对电磁波的吸收特性。The attenuation of the electromagnetic wave in the non-uniform plasma slab cling to a metal plane is studying in this paper. The plasma slab is divided into a number of sub-slabs each of which is dealt with as a uniform slab. Detailed numerical calculations are conducted on Epstein-distributions. The effects of electron number density, momentum transfer collision rate, magnetic field and angle of incidence on the attenuation are taken into account, and get the character of plasmas absorbing electromagnetic wave.

关 键 词：电磁波 磁化等离子体 反射 衰减 

分 类 号：TN011[电子电信—物理电子学] O539[理学—等离子体物理]