强激光与粒子束2013，Vol.25Issue(2)：394-398,5.DOI:10.3788/HPLPB20132502.0394
9.4GHz过模光滑壁TE11-HE11模式变换器设计
Design of a 9.4 GHz over-moded smooth-wall TE11-HE11 converter
摘要
Abstract
High power microwave(HPM) sources usually employ overmoded output waveguide to obtain higher power capacity. In designing feeder of beam waveguide and reflect antenna, THE mode needs to be convert to HEH mode to radiate a qua-si-Gaussian beam with quite low side lobe. RF breakdown will occur in corrugate gap when traditional corrugated THE-Hen mode converter is used in HPM field. In order to solve this problem, a method to design over-moded smooth-wall THE-HEH converter was investigated. Using an iterative synthesis method based on coupled-mode theory, a 9. 4 GHz, Φ70 mm over-moded smooth-wall Ten-Hen converter was designed, and contrast to electro-magnetic simulation result, the scalar Gauss ratio of the output beam is higher than 99. 5% from 9. 1 GHz to 9. 7 GHz, the power capacity is as high as 4. 9 GW.关键词
高功率微波/准高斯模式/模式耦合理论/迭代综合/模式变换器Key words
high power microwave/ quasi-Gauss mode/ coupled mode theory/ iterative synthesis/ mode converter分类
信息技术与安全科学引用本文复制引用
徐刚,余川,李正红,廖勇,谢平..9.4GHz过模光滑壁TE11-HE11模式变换器设计[J].强激光与粒子束,2013,25(2):394-398,5.基金项目
国家高技术发展计划项目 （）
