[1]李继超,陈潇杰,刘长军,等.C波段波导同轴转换器设计及其微放电功率阈值[J].应用科技,2020,47(6):5-8,17.[doi:10.11991/yykj.202001019]
　LI Jichao,CHEN Xiaojie,LIU Changjun,et al.Design of a C-band waveguide coaxial converter and study on its multipactor power threshold[J].Applied science and technology,2020,47(6):5-8,17.[doi:10.11991/yykj.202001019]
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C波段波导同轴转换器设计及其微放电功率阈值(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第47卷
期数:
2020年6期
页码:
5-8,17
栏目:
现代电子技术
出版日期:
2021-01-31

文章信息/Info

Title:
Design of a C-band waveguide coaxial converter and study on its multipactor power threshold
作者:
李继超1;  陈潇杰1;  刘长军1;  白鹤2;  崔万照2
1. 四川大学 电子信息学院，四川 成都 610064;
2. 中国空间技术研究院西安分院 空间微波技术重点实验室，陕西 西安 710100
Author(s):
LI Jichao1;  CHEN Xiaojie1;  LIU Changjun1;  BAI He2;  CUI Wanzhao2
1. School of Electronics and Information Engineering, Sichuan University, Chengdu 61004, China;
2. National Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology (Xi’an), Xi’an 710100, China
关键词:
C波段; 波同转换器; 阻抗变换; 微放电; 敏感区域; 二次电子发射率; 阈值; 抑制
Keywords:
C-band; waveguide coaxial converter; impedance transformation; multipactor; sensitive areas; secondary electron yield; threshold; suppression method
分类号:
O441.4
DOI:
10.11991/yykj.202001019
文献标志码:
A
摘要:
针对空间应用中微放电效应对微波器件的制约，设计了一种C波段高微放电功率容量的波导同轴转换器。基于从局部到整体的微放电敏感区域分析方法，对同轴接头和馈电体进行优化，提出了改进型后馈式波导同轴转换器。频率在3.0~5.4 GHz时，回波损耗大于15 dB，插入损耗低于0.3 dB。实验测试得到微放电功率阈值突破7 kW，与理论分析结果吻合。该波导同轴转换器结构简洁，微放电功率阈值高，有望在空间得到应用。微放电分析的方法对空间微波器件抑制微放电的设计有借鉴意义。
Abstract:
Aiming at restriction of micro-discharge effect on microwave devices in the space applications, we designed a waveguide coaxial converter with high micro-discharge power capacity in C band. In this paper, based on an analysis of the sensitive area of multipactor from local area to the whole region, an improved end-launch waveguide coaxial with high multipactor power threshold is presented based on the optimized coaxial joints and feeders. Its return loss is more than 15 dB and and insertion loss less than 0.3 dB between 3.0 GHz to 5.4 GHz, respectively. The multipactor power threshold breaks through 7 kW in experiments, which agrees to theoretical analysis. The proposed waveguide coaxial converter has a concise structure with high multipactor power threshold, which is prospective in future application in space. The analysis method may aid the design of microwave components in suppression of multipactor effects.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-01-29。
基金项目:国家自然科学基金项目(62071316)
作者简介:李继超，男，硕士研究生;刘长军，男，教授，博士生导师
通讯作者:刘长军，E-mail：cjliu@scu.edu.cn
更新日期/Last Update: 2021-02-05