摘要
文中提出了一种用于高功率微波武器系统的激光等离子体通道天线,简单阐述了该天线的具体实现方法,根据天线的工作原理,建立了等离子体通道天线的近似电磁模型。从柱坐标系下纵向分量所满足的波动方程出发,在柱坐标系中给出了纵向场与横向场的关系,利用边界条件分别导出了非磁化和磁化等离子体通道天线最严格的特征方程,并通过在极限条件下将本文结果与文献已有结果的对比,验证了文中所导结果的正确性和有效性。最后,分别数值计算了非磁化和磁化等离子体通道天线的色散曲线,为该天线的实际应用打下坚实的理论基础。
In this paper, a laser plasma channel antenna for high power microwave weapon is presented. The concrete realization method of this antenna is simply described. The approximation electromagnetic model of PCA is created based on the operating principle of this antenna. The wave equations are started with the longitudinal components in cylindrical coordinate system. The relations between the transverse components and longitudinal ones of electromagnetic fields in cylindrical coordinate are given. The strictest characteristic equations of nonmagnetic and magnetic PCA are deduced separately by applying the boundary conditions of electromagnetic fields. In the limit cases, the results of this paper are consistent with those given in the literature＇ s, which shows that the results of this paper are correct and effective. Finally, the dispersive curves of nonmagnetic and magnetic PCA are calculated, it has set up a solid foundation for practical application of the antenna.
出处
《微波学报》
CSCD
北大核心
2009年第2期19-24,共6页
Journal of Microwaves
基金
国家自然科学基金资助项目(60671057)
关键词
等离子体通道天线
非磁化等离子体
磁化等离子体
特征方程
传播特性
Plasma channel antenna（PCA） , Nonmagnetic plasma, Magnetic plasma, Characteristic equation, Propagation properties
