高阶体模准光模式激励器的设计与实验
投稿时间:2021-02-18  修订日期:2021-03-16  点此下载全文
引用本文:
摘要点击次数: 102
全文下载次数: 0
作者单位邮编
杨晨 中国科学院空天信息创新研究院 101407
郭炜 中国科学院空天信息创新研究院 
李志贤 中国科学院空天信息创新研究院 
焦梦龙 中国科学院空天信息创新研究院 
张志强 中国科学院空天信息创新研究院 
罗积润 中国科学院空天信息创新研究院 
朱敏 中国科学院空天信息创新研究院 
基金项目:国家重点研发计划
中文摘要:基于开放式谐振腔及准光学模式变换理论,设计并实现了一种应用于回旋管振荡器冷测的高阶模式激励器。以140 GHz、TE28,8模工作为例,通过计算机编程控制三维移动测量平台和网络分析仪完成了相应的实验测量。当模拟仿真获得在谐振腔激起频率为140.179 GHz、Q值为855、输出场分布与TE28,8模的相关性为90.9 %时,对应设计构建模式激励器完成的冷测结果频率为140.155 GHz、Q值为876、横向电场明显具有TE28,8的特征,为回旋管振荡器研究和设计过程检验提供了一个有效的实验平台。
中文关键词:开放式谐振腔,高阶体模,准光学模式变换,模式激励器,冷测
 
Design and experiments of a high-order body mode generator using quasi-optical technology
Abstract:Based on the theory of open resonant cavity and quasi-optical mode conversion, a high-order quasi-optical mode generator was designed and manufactured for the cold measurement of the gyrotron oscillator. For the high-order mode generator working at 140 GHz and TE28,8 mode, the corresponding experimental measurements were completed using the three-dimensional mobile measurement platform and network analyzer which were controlled by computer programming. The results show that, when the simulation results related to the resonant frequency, Q factor, and the correlation of the electric field distribution with the TE28,8 mode in the cavity are respectively 140.179 GHz, 855, and 90.9%, the corresponding cold-tested ones for resonant frequency and Q factor are respectively 140.155 GHz and 876, and the transverse electric field distribution tested is very similar to that of the TE28,8 mode, which indicates that the quasi-optical mode generator designed in this paper can provide an effective experimental platform for the research and design process verification of the high-order body mode gyrotron oscillator.
keywords:open resonant cavity, high-order body mode, quasi-optical mode conversion, mode generation, cold test
  HTML  查看/发表评论  下载PDF阅读器

版权所有:《红外与毫米波学报》编辑部