【摘要】 利用TWTCAD软件和美国一维螺旋线行波管大信号计算程序对金刚石夹持高频结构和氧化铍高频结构进行了模拟计算,模拟结果表明采用金刚石作为夹持材料可以大大提高高频结构的耦合阻抗和电子效率,同时在采用非均匀输出线路设计时,金刚石结构对电子效率的提高更为明显。更多还原

【Abstract】 Simulations of slow-wave circuits of millimeter helix TWTs with diamond-rodsupporter and BeO-rod-supporter are completed by TWTCAD software and the onedimensional large signal computing code of America.Results show that Electronic efficiency and interaction impedance with the diamond-rod-structure are improved greatly as compared to these with the BeO-rod-structure.Whereas the electronic efficiency of the former can be improved further when the phase velocity taper is adopted.更多还原