摘要
为实现周期结构电磁特性在真空器件中的全维度开发,提出一种交错子周期折叠波导慢波结构。通过软件仿真的方法研究了该结构的色散、耦合阻抗等冷特性。与一般折叠波导的冷特性进行对比,发现其较于一般折叠波导,在3π模处可产生明显止带和高耦合阻抗。通过模拟结构尺寸变化对冷特性的影响,掌握设置相应尺寸控制止带参数的规律和方法,基于这一特性和方法可以开展新器件的研发。
To achieve the application of electromagnetism characteristics of period structure in vacuum devices,a new slow wave structure called stagger half-period folded waveguide is put forward.By using the software,the dispersion and coupling impedance of this structure are studied.Compared with the cold characteristics of normal folded waveguide,it can produce obvious stop-band at the 3πphase shift and high coupling impedance.Then the effect of structure dimension on cold characteristics is simulated by changing the dimensions.The rule and method of controlling the stop-band parameters are studied by setting relative dimensions.This work can provide reference for the research of new devices.
作者
王东宇
蔡军
WANG Dongyu;CAI Jun(National Key Laboratory of Science and Technology on Vacuum Electronics,Beijing Vacuum Electronics Research Institute,Beijing 100015,China)
出处
《太赫兹科学与电子信息学报》
北大核心
2018年第1期126-130,共5页
Journal of Terahertz Science and Electronic Information Technology
关键词
交错子周期折叠波导
止带
冷特性
尺寸影响
stagger half-period folded waveguide
stop-band
cold characteristics
dimension effect
