94 GHz径向螺旋波导行波管研究  

Simulation of 94 GHz radial helix waveguide travelling wave tube

作　　者：王少萌[1] 段兆云[1] 魏彦玉[1] 宫玉彬[1] 

机构地区：[1]电子科技大学微波电真空器件国家级重点实验室,成都610054

出　　处：《北京航空航天大学学报》2012年第9期1227-1229,共3页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家杰出青年基金资助项目(61125103);国家自然科学基金资助项目(60971038;60971031);微波电真空器件国家级重点实验室重点基金资助项目(9140C050102100C05)

摘　　要：提出了一种具有工作电压小、结构紧凑、散热性好等特点的新型慢波结构——径向螺旋波导结构,利用电磁仿真软件分析了其色散及传输特性,结果表明该种结构行波管工作电压可低至数百伏.由于圆柱电子枪发射面远大于常规行波管,因而在小电流密度下仍可保证大电流:电流密度为100 mA/cm2时电流可达30 A.该结构在W波段具有较大的尺寸,易于加工,并且在更高波段同样具有很好的传输特性,具有较大的研究价值.A novel slow wave structure with low work voltage,high work current,compact structure was proposed by using radial helix waveguide.The dispersion and transmission character was analyzed,and its work voltage was obtained,which could be as low as several hundred Volts.As the emitter face of cylinder gun larger than ordinary TWT’s,it is possible to produce a high current with low current density.The current can reach 30A while the current density is 100 mA/cm2.The fabrication is easy as the large size in W-band and above.The good transmission character indicates that the study is valuable.

关 键 词：径向电子束 螺旋波导 行波管 传输特性 

分 类 号：TN124[电子电信—物理电子学]