强耦合式带状注速调管多间隙输出腔的设计  

Design of multi-gap output cavity of strong coupling sheet-beam klystron

作　　者：梁源[1,2] 赵鼎[1] 王勇[1] 阮存军[1] 丁耀根[1] 阮望[1] 

机构地区：[1]中国科学院电子学研究所中国科学院高功率微波源与技术重点实验室,北京100190 [2]中国科学院研究生院,北京100039

出　　处：《红外与毫米波学报》2013年第5期419-424,共6页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金(61222110;60971073;61172015)~~

摘　　要：提出了一种强耦合式带状注速调管多间隙输出腔,并将之应用于Ka波段带状注速调管输出腔的设计.此设计可以获得更好的输出耦合特性和理想的场形.更重要的是,这种结构的漂移管允许被设计为对工作频率的截止状态,从而可以获得更理想的电场场形以利于注波互作用.从表面电流的角度分析了这种设计的理论依据.通过使用粒子模拟软件进行仿真,在中心频率获得了稳定的功率输出,互作用效率达到50%以上,3dB带宽约75MHz.A new strong coupling multi-gap output structure has been developed as the output cavity of Ka band sheet beam klystrons. This structure has a better output coupling characteristics and better shape of electric field. Moreover, when the drift tube of the output cavity is cut-off in the operating frequency, an ideal field shape can be obtained as to support more efficient beam-wave interaction. An analysis of the distribution of the surface current supports the design theoretically. A stable output power curve can be observed at the center frequency by using particle-in-cell simulations, where the interaction efficiency is more than 50% and the 3dB bandwidth is about 75MHz.

关 键 词：带状注 强耦合 多间隙输出腔 

分 类 号：TN122[电子电信—物理电子学]