摘要
从双间隙分离腔的色散关系式出发 ,通过数值计算求出了分离腔中 TM0 1 0 模对应的谐振频率 ,并给出了腔内轴向电场的分布图 ,证实了分离腔中存在着电场反相的π模场。因此 ,可以将其用作电场反相的双间隙输出腔 ,来实现双间隙提取。并用 2 .5维粒子模拟程序卡拉特 ( KARAT)程序对这种分离腔输出回路进行了粒子模拟和优化设计。通过详细的冷测和调试实验 ,研制出了中心频率为3.74 GHz,QL 值为 7.8的低 QL
Starting from the cold dispersion relation, which is employed to numerically calculate eigenfrequencies for the double gap split cavity, thereby the resonant frequency for the split cavity TM 010 mode are obtained and the distributing character of π mode are discussed. Accordingly, the split cavity can be used as double gap output cavity. And then the double gap output cavity is designed by using the 2.5D, relativistic, fully electromagnetic, PIC code KARAT, and more optimizing the construct of output cavity. At last by modulating the different construct parameters, the cold tests are carried on, and by which the low Q L output cavity of center frequency 3.74GHz and 7.8 of load Q L is developed.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2001年第2期204-208,共5页
High Power Laser and Particle Beams
基金
国家 8 6 3高功率微波技术领域资助课题! (86 3-4 10 -7)
关键词
双间隙输出腔
分离腔
高频特性
阻抗匹配
double gap output cavity
the split cavity
high frequency character
impedance matching
