一体化矩形谐振腔的频率修正方法的研究

张朝玮; 刘向宏; 曹静; 高冬平

doi:10.11884/HPLPB202537.250192

一体化矩形谐振腔的频率修正方法的研究

doi: 10.11884/HPLPB202537.250192

张朝玮^{1, 2,},
刘向宏³,
曹静¹,
高冬平¹

1.
中国科学院空天信息创新研究院，北京 101407
2.
中国科学院大学电子电气与通信工程学院，北京 100049
3.
空装驻北京地区第四军事代表室，北京 100041

详细信息

作者简介:
张朝玮，zhangchaowei231@mails.ucas.ac.cn

中图分类号: TN815
计量
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- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2025-06-30
- 修回日期: 2025-09-20
- 录用日期: 2025-09-01
- 网络出版日期: 2025-09-28

A study of frequency correction methods for integrally processed rectangular resonant cavities

1.
.Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 101407, China
2.
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
3.
Air loading office of the fourth military representative in Beijing 100041, China

摘要

摘要: 谐振腔作为速调管的重要组成部分，其特性对速调管的性能具有决定性影响。在高波段速调管领域，受加工工艺和焊接技术的限制，多采用一体化加工的矩形谐振腔。传统的一体化矩形谐振腔在进行频率调节时容易产生谐振腔频率偏差，频率偏差较大时会导致谐振腔无法使用等问题。据此，提出了一种实用新型频率调节结构。将该结构应用于矩形谐振腔时，可实现大幅度的频率调节，有效补偿因零件加工公差导致的频率偏差。应用此结构后，频率调节操作变得简便、快速，可以显著提升速调管的研制效率，为高波段速调管的优化与发展提供了新的技术路径。
- 速调管 /
- 一体化矩形谐振腔 /
- 谐振频率 /
- 频率修正
Abstract: Background
As an important part of klystrons, the characteristics of the resonant cavity have a decisive influence on the performance of klystrons. In the field of high-band klystrons, due to the limitation of processing technology and welding technology, the integrally processed rectangular resonant cavity is mostly used.
Purpose
The traditional integrally processed rectangular resonant cavity is prone to problems such as frequency deviation of the resonant cavity or even inoperability of the resonant cavity when frequency adjustment is performed.
Methods
Accordingly, this paper innovatively proposes a practical new frequency-modulation structure: a coupling diaphragm with slots cut into the resonator cavity walls and openings added.
Results
Simulation calculations validate that when this structure is applied to the rectangular resonant cavity, a large-scale frequency adjustment can be achieved, effectively compensating for the frequency deviation caused by the machining tolerance of parts.
Conclusions
During frequency tuning, applying external force deforms the diaphragm to increase cavity frequency, while enlarging the coupling aperture on the diaphragm lowers it. Moreover, the frequency adjustment operation becomes simple and rapid, significantly improving the research and development efficiency of the klystron, thus providing a new technical approach for the optimization and development of high-band klystrons.
- klystron /
- integrally processed rectangular resonant cavity /
- resonant frequency /
- frequency correction

HTML全文

图 1 一体化矩形谐振腔高频群聚段结构示意图

Figure 1. Schematic structure of high-frequency cluster section of integrated rectangular resonant cavity

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图 2 谐振频率调节流程图

Figure 2. Flowchart of Resonant Frequency Adjustment

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图 3 相关尺寸标注图

Figure 3. Relevant dimension marking diagram

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图 4 调高谐振频率的矩形腔计算模型

Figure 4. Rectangular cavity calculation model for increasing the resonant frequency

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图 5 计算结果

Figure 5. Calculated results

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图 6 电场变化趋势

Figure 6. Trend of electric field variation

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图 7 调低谐振频率的矩形腔计算模型

Figure 7. Rectangular cavity calculation model for decreasing the resonant frequency

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图 8 计算结果

Figure 8. Calculated results

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图 9 电场变化趋势

Figure 9. Trend of electric field variation

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表 1 谐振腔尺寸及对应的谐振频率和R/Q

Table 1. Resonant cavity size and corresponding resonant frequency and R/Q

Parameter D/mm D/mm H/mm F/MHz R/Q

nominal value 16.5 2 6 8464 52.5

tolerance 16.5+0.05 2-0.05 6+0.05 8343 50.3

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表 2 谐振腔尺寸及对应的谐振频率和R/Q

Table 2. Resonant cavity size and corresponding resonant frequency and R/Q

Parameter D/mm D/mm H/mm F/MHz R/Q

nominal value 16.5 2 6 8464 52.5

tolerance 16.5-0.05 2+0.05 6-0.05 8630 52.3

下载: 导出CSV

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