提出了一种用于辐射高功率微波的各向异性磁化等离子体通道天线(AMPCA),阐述了该天线的具体实现方法,给出了其工作原理,建立了AMPCA的电磁模型。推导了广义柱坐标系下各向异性磁化等离子体中纵向场满足的波动方程,并给出了纵向场与横向场的关系,利用边界条件导出了AMPCA传播模式的特征方程,并在极限条件下,将结果与已有文献进行对比,验证了所推导结果的正确性和有效性。数值计算了AMPCA传播模式的色散曲线。

An anisotropic magnetized plasma channel antenna(AMPCA) for radiating high power microwave is presented. The concrete realization method of AMPCA is simply described. The operating principle of AMPCA is given,and the electromagnetic model of AMPCA is created. The wave equations for the longitudinal electromagnetic fields are deduced,and the relations between the transverse electromagnetic fields and the longitudinal ones of anisotropic magnetic plasma in generalized cylindrical coordinate are given. The characteristic equation of modes for AMPCA is deduced by applying the boundary conditions of electromagnetic fields. In the limit cases,the results of this paper are consistent with that given in literature’s. The dispersive curves of modes for AMPCA are calculated.