中文摘要：

电磁波与等离子体之间的相互作用是等离子体物理学和高功率微波器件研究的重点，加载等离子体可以大幅度提高微波器件的输出功率和效率．文章提出了一种加载周期磁化变化等离子体圆波导的周期慢波结构，即加载轴向周期磁化正弦变化等离子体圆波导的介质周期结构，并研究了电磁波在该介质结构中的传播特性，根据严格的理论推导得出电磁波在其中传播的色散方程，并进行了数值计算和分析．

英文摘要：

The interaction between the plasma and electromagnetic wave is a focus of the study of high-power microwave devices. By way of loading plasma, the output power and efficiency of a microwave device can be immensely enhanced. Through the loading of the periodic slow-wave structure in a cylindrical circular waveguide that is filled with a periodically magnetized plasma, the propagation properties of the electromagnetic wave along such a media was subjected to examination. Based on strict theoretical deduction, the dispersion equations were derived, and the numerical calculation, and analysis were done as well.