THz波在有界等离子体中的特性分析  

Characteristics Analysis of Thz Wave in Bounded Plasma

作　　者：陈春梅 闫晓兵 刘运杰 牟云飞 李敬 CHEN Chunmei;YAN Xiaobing;LIU Yunjie;MU Yunfei;LI Jing(Taishan College of Science and Technology,Taian 271000,China)

机构地区：[1]泰山科技学院,山东泰安271000

出　　处：《现代信息科技》2021年第24期65-68,共4页Modern Information Technology

摘　　要：为解决飞行器在等离子体层中的通信中断问题,借助有界等离子体的传输模型,研究了THz波在等离子体中的传播特性。文章主要分析在非磁化、均匀等离子体中THz波的传输特性。随着等离子的碰撞频率(f_(en))、厚度(d)、电子密度(n_(e))的变化规律,从三个方面分析了太赫兹波在非磁化等离子体中传播的反射值(R)、透射值(T)以及衰减值(Att)。提高入射波频率至太赫兹波频段,可以有效地解决“黑障”问题。In order to solve the problem of the communication interruption of the aircraft in the plasma layer,with the help of the transmission model of the bounded plasma,the propagation characteristics of the THz wave in the plasma are studied.This paper mainly analyzes the transmission characteristics of THz wave in non-magnetized and uniform plasma,and analyzes the reflection value(R),transmission value(T)and attenuation value(Att)of terahertz wave propagating in non-magnetized plasma with the change regulation of plasma collision frequency(f_(en)),thickness(d)and electron density(n_(e)),from three aspects.Increasing the incident wave frequency to terahertz wave band can ef fectively solve the problem of“blackout”.

关 键 词：太赫兹波 等离子体 黑障 衰减特性 

分 类 号：TN011[电子电信—物理电子学] V271[航空宇航科学与技术—飞行器设计]