速调管双间隙双耦合口输出结构  

Klystron double-gap output structure with double coupling apertures

作　　者：葛萌[1,2] 王勇[1] 

机构地区：[1]中国科学院电子学研究所,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,北京100049

出　　处：《强激光与粒子束》2013年第2期407-410,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(10905032)

摘　　要：基于等效电路理论,提出了一种双间隙双耦合口输出结构的设计方法及计算双耦合口输出腔外观品质因数的方法。利用三维电磁场软件,设计了满足阻抗频率特性要求的双间隙单耦合口输出结构及前置腔和输出腔分别具有相同参数的双间隙双耦合口结构。然后,将两者的阻抗频率特性进行比较,通过微调整该输出腔与耦合槽的尺寸,可以得到与单耦合口输出结构一致的阻抗频率特性曲线。A scheme for designing the double-gap output cavity with two coupling apertures, as well as a method for calcu lating the external quality factor of the output cavity were proposed in this paper based on the equivalent-circuit theory. A double- gap output structure with single coupling aperture that satisfied the needs of the impedance-frequency characteristics was designed by using the CST-MWS code, and then a double gap output structure with double coupling apertures was obtained, with the same geometrical size of the front-cavity and output-cavity. The impedance frequency characteristic curve of the output cavity with double coupling apertures can be consistent with that of the cavity with single coupling aperture, by properly adjusting the geo- metrical size of the cavity and the coupling slot. The novel method used in this paper can provide a simple and effective way of de- signing the double-gap output cavity with two coupling apertures.

关 键 词：速调管 双耦合口 双间隙输出腔 间隙阻抗频率特性 

分 类 号：TN122[电子电信—物理电子学]