广西科学2019，Vol.26Issue(4)：362-369,8.DOI:10.13656/j.cnki.gxkx.20190808.001
一种大功率连续波磁控管的高频电磁场与热应力场耦合分析
The Coupling Analysis of High Frequency Electromagnetic Field and Thermal Stress Field of a High-power Continuous Wave Magnetron
摘要
Abstract
In this paper，an analysis method coupled high frequency electromagnetic filed with thermal stress field for a high-power continuous wave magnetron resonant cavity is developed. First of all，the internal relationship of working mode，resonant frequency and quality factor of a high-power continuous microwave magnetron resonant system is studied under no-strapped，single-strapped and double-strapped conditions with the equivalent circuit theory and numerical simulation method. Secondly，the temperature distribution of fan and fan-slot shaped anode is theoretically derived. It is found that the strap can improve the mode separation ability of the resonant system，but it also increases the loss and reduces the quality factor. Furthermore，the cooling channel with the matched cooling conditions is designed for the heat dissipation of a 30 kW continuous wave magnetron by the comparison of the thermal stress，displacement，temperature and resonant frequency under different cooling conditions. Finally，by combining the previous analysis，the corresponding relationship between the anode blade temperature and the resonant frequency underπ mode is studied，and the thermal drift curve of the magnetron is given.关键词
磁控管/谐振系统/热应力/隔模带/耦合分析Key words
Magnetron/resonant system/thermal stress/strap/coupling analysis分类
信息技术与安全科学引用本文复制引用
丁海兵1,冯彤2,李伟松1,陆登峰1,吴迪1..一种大功率连续波磁控管的高频电磁场与热应力场耦合分析[J].广西科学,2019,26(4):362-369,8.基金项目
中国科学院科技服务网络计划(KFJ-STS-QYZD-112)资助. （KFJ-STS-QYZD-112）
