均匀磁化等离子体与雷达波相互作用的数值分析  

Numerical analysis on the absorption,reflection and transmission of radar waves by a uniform magnetized plasma slab

作　　者：唐德礼[1] 孙爱萍[1] 邱孝明[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《物理学报》2002年第8期1724-1729,共6页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :10 0 0 5 0 0 1)资助的课题~~

摘　　要：采用平板几何对不同磁场强度下等离子体对电磁波的吸收、反射和透射特性进行了数值分析 .结果表明 ,不同磁场可以显著改变等离子体对不同频率的雷达波的吸收和反射特性 .当雷达波频率接近等离子体高混杂频率时 ,磁化等离子体将对该波产生强的共振吸收 ,带宽在 2GHz左右 ,吸收比可达 90 %以上 .因此 ,通过适当调整磁场强度、等离子体密度和碰撞频率 。The absorption, reflection, and transmission of radar waves by a uniform and magnetized plasma slab are studied in this paper. The effect of various plasma parameters and different values of magnetic field intensity on the absorbed, reflected and transmitted power are discussed. The calculated results show that the effects of magnetic field on the absorbed power as well as the frequency band of resonant absorption are very significant. More than 90% of radar wave power can be absorbed and the resonant absorption band is about 2GHz.

关 键 词：均匀磁化等离子体 雷达波 相互作用 数值分析 电磁波 共振吸收 等离子体隐身 反射特性 透射特性 

分 类 号：O539[理学—等离子体物理]