等离子体加载耦合腔慢波结构色散分析  

Dispersion analysis of a coupled-cavity slow wave structure filled with plasma

作　　者：王彬[1] 谢文楷[1] 

机构地区：[1]电子科技大学物理电子学院,成都610054

出　　处：《物理学报》2007年第12期7138-7146,共9页Acta Physica Sinica

基　　金：国家自然科学基金批准号:60401006);国防科技重点实验室基金批准号:NKLC001-053);武器装备预研基金批准号:PJ06DJ0219)资助的课题.~~

摘　　要：利用磁化等离子体介电张量和纵向场分量法对任意大小轴向磁场中等离子体填充耦合腔慢波结构进行场分析,得到磁化等离子体填充电子注通道电磁波场分量的轴对称精确解.在此基础上,建立耦合腔分区模型、采用场匹配方法建立色散方程,并数值计算得出不同等离子体密度及磁场下的耦合腔色散曲线.对不同密度等离子体填充情况下的耦合腔色散特性、混合模式的形成机理以及等离子体空间电荷波进行了分析讨论.Utilizing the method of longitudinal field and the dielectric tensor of the magnetized plasma, the accurate expressions for the field in the plasma drifting channel were derived. Under given boundary conditions and using the moments method, the dispersion relations were obtained： The dispersion characteristics in low-density and high-density loaded plasmas were studied. The plasma space-charge wave and the formation of the hybrid modes were discussed.

关 键 词：耦合腔慢波结构 等离子体 混合模式 色散特性 

分 类 号：O53[理学—等离子体物理]