有限磁场中激光等离子体通道天线的电磁散射分析  

EM scattering analysis of laser plasma channel antenna in a finite magnetic field

作　　者：夏新仁[1] 尹成友[1] 

机构地区：[1]合肥电子工程学院脉冲功率激光技术国家重点实验室,合肥230037

出　　处：《核聚变与等离子体物理》2009年第2期97-103,共7页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金资助项目(60671057)

摘　　要：分析了电磁波以任意角度入射到有限磁场中的激光等离子体通道天线(LPCA)时的电磁散射特性。根据LPCA的工作原理建立了其电磁分析模型,推导出广义柱坐标系下各向异性磁化等离子体中纵向分量所满足的波动方程和纵向场与横向场的关系,得到LPCA和周围媒质中的电磁场,利用边界切向电磁场连续,得出了散射系数方程。通过计算实例,将结果与文献结果比较,吻合较好。该研究结果预期可应用于高功率微波武器系统的研究。The scattering characteristic of an obliquely incident plane electromagnetic wave by laser plasma channel antenna （LPCA） in a finite magnetic field is discussed and the electromagnetic model of LPCA in a finite magnetic field is created. Using the cylindrical coordinate and anisotropic magnetized plasma model, the wave equations of the longitudinal components and the relationships between transverse and longitudinal component are derived, the electromagnetic fields in LPCA and in the medium are given, and the equations of scattering coefficient are deduced. The calculation shows a good agreement with the result given in the reference and a possible application in the study of high power microwave weapon.

关 键 词：有限磁场 激光等离子体通道天线 电磁散射 

分 类 号：TN011[电子电信—物理电子学]