强激光与粒子束2012，Vol.24Issue(3)：727-731,5.DOI:10.3788/HPLPB20122403.0727
大间隙速调管输出腔支撑杆的3维设计
3-D design of output cavity post for wide-gap klystron
白现臣 1张建德 1杨建华 1靳振兴1
作者信息
- 1. 国防科学技术大学光电科学与工程学院,长沙410073
- 折叠
摘要
Abstract
An output cavity with double-rows of metal posts for a wide-gap klystron amplifier (WKA) is built and simulated using the three-dimension fully electromagnetic particle-inrcell (PIC) code and high frequency analysis software. The results show that both the first row and the second row of posts affect the high frequency characteristics of the output cavity, thus the double-rows of posts must be designed together with the output cavity, and the design purpose is to obtain proper external quality factor and gap electric field through controlling the posts' scattering characteristic. Under the electric power of 2. 9 GW and the electron beam modulation depth of 90%, a microwave power of 1. 06 GW with an average power efficiency of about 36. 5% is obtained at 3. 6 GHz from an output cavity with double rows of posts designed according to the rules mentioned above.关键词
大间隙速调管放大器/输出腔/金属支撑杆/3维粒子模拟Key words
wide-gap klystron amplifier/output cavity/metal post/3-D PIC simulation分类
信息技术与安全科学引用本文复制引用
白现臣,张建德,杨建华,靳振兴..大间隙速调管输出腔支撑杆的3维设计[J].强激光与粒子束,2012,24(3):727-731,5.
