摘要
螺距是慢波系统的一个重要参数,直接影响螺旋慢波系统的色散特性和耦合阻抗。严格求解螺距对慢波系统色散和耦合阻抗的影响是不方便的,而通过计算机模拟可以方便快速地研究螺距对慢波系统色散和耦合阻抗的影响。模拟结果表明,对于工程项目当螺距变化小于4%时,螺距对色散和耦合阻抗的影响是很小的。
As an important parameter of slow wave structure,the pitch has a great effect on the dispersion and coupling impedance in TWTs.It is not convenience to approach a precision result with pure mathematical analysis method,but the effects can be easily analyzed by a popular electromagnetic filed simulation software.The simulation results show that the effect is quite small for the project if the variety of the pitch of helix is less than 4%.
出处
《真空电子技术》
2007年第2期1-4,共4页
Vacuum Electronics
关键词
慢波系统
螺旋线
螺距
色散
耦合阻抗
Slow wave structure
Helix
Pitch
Dispersion
Coupling impedance
