A comparative study on the propagation characteristics of electromagnetic waves in inhomogeneous plasma sheath

被引:6
|
作者
Chen Cong [1 ,3 ]
Chen Yun-yun [1 ,2 ,3 ]
Cui Fen-ping [1 ,3 ]
机构
[1] Nanjing Univ Informat Sci & Technol, Jiangsu Key Lab Optoelect Detect Atmosphere & Oce, Nanjing 210044, Jiangsu, Peoples R China
[2] Nanjing Univ Informat Sci & Technol, Jiangsu Collaborat Innovat Ctr Atmospher Environm, Nanjing 210044, Jiangsu, Peoples R China
[3] Nanjing Univ Informat Sci & Technol, Sch Phys & Optoelect Engn, Nanjing 210044, Jiangsu, Peoples R China
来源
OPTIK | 2018年 / 155卷
关键词
Inhomogeneous plasma sheath; Hyperbolic model; Analytic method; WKB method; Power transmission coefficient; TRANSMISSION; REFLECTION; MICROWAVES; ABSORPTION;
D O I
10.1016/j.ijleo.2017.09.117
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A plasma sheath is formed on the surface of high speed spacecrafts when they return to atmosphere, which leads to electromagnetic waves be reflected, absorbed, and finally the intensity decreases. In this paper, the hyperbolic electron number density distribution model is established firstly. Then, the power reflection coefficient, power absorption coefficient and the power transmission coefficient of this model is derived by the analytic method. Finally, this study mainly focuses on the comparison of the analytic method and Wentzel-Kramer-Brillouin (WKB) method about their applicability and limitations, by discussing the electromagnetic wave power transmission coefficient of one-dimensional case. In short, the related research can provide a theoretical reference forthe spacecraft to overcome the "blackout" effect of communication. (C) 2017 Elsevier GmbH. All rights reserved.
引用
收藏
页码:390 / 398
页数:9
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