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针对现有高功率微波武器辐射天线的不足,提出了将磁化等离子体通道用作电磁脉冲辐射天线的思想———磁化等离子体通道天线(MPCA),分析了MPCA周围为有耗气体媒质时MPCA所传播的一般模式.简单阐述了MPCA的具体实现方法,根据MPCA的工作原理,建立了MPCA的几何模型,利用边界条件导出了MPCA最严格的色散方程.重点讨论了传播常数随等离子体参数、周围介质参数和外加磁场的变化.结果表明,有限磁场中的MPCA与无穷大磁场时具有一些不同的传播特性,这些结果对于该天线的实现很有参考价值.
In order to overcome the shortcomings of existing high-power microwave radiation antenna, a magnetized plasma channel antenna (MPCA) is proposed, which uses magnetized plasma channel as the electromagnetic pulse radiating antenna. MPCA The general mode of propagation is described briefly.The concrete implementation of MPCA is described.According to the working principle of MPCA, a geometric model of MPCA is established and the most stringent dispersion equation of MPCA is derived by using boundary conditions.The propagation constants are discussed with the plasma parameters, The surrounding medium parameters and the change of applied magnetic field.The results show that MPCA and infinite magnetic field have some different propagation characteristics in the finite magnetic field.These results are very useful for the realization of the antenna.