圆波导TE<sub>01</sub>模激励器设计及实验研究

张强; 袁成卫; 陈俊; 余龙舟; 赵雪龙

doi:10.11884/HPLPB201830.170462

圆波导TE₀₁模激励器设计及实验研究

doi: 10.11884/HPLPB201830.170462

张强^1,,
袁成卫^1, ,,
陈俊²,
余龙舟¹,
赵雪龙¹

1.
国防科技大学前沿交叉学科学院, 长沙 410073
2.
中国人民解放军75836部队, 广州 510000

基金项目:

国家自然科学基金项目 61401485

详细信息

作者简介:
张强(1984—), 男, 博士, 主要从事无源高功率微波器件研究；zqiang1984@163.com

通讯作者:
袁成卫(1974—), 男, 博士, 主要从事高功率微波传输发射技术研究；119344398@qq.com

中图分类号: TN811;TN814
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出版历程
- 收稿日期: 2017-11-14
- 修回日期: 2017-12-15
- 刊出日期: 2018-06-15

Investigations on TE₀₁ circular waveguide mode transducer

1.
College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
2.
75836 Troops, PLA, Guangzhou 510000, China

摘要

摘要: 对比分析了几种可输出圆波导TE₀₁模激励器的仿真设计结果。结果表明，利用行波功分结构实现矩形波导TE₁₀模到4路矩形波导TE₁₀模的等幅同相功分，进而合成转换成圆波导TE₀₁模的转换过程，可在较宽的频带范围内，实现圆波导TE₀₁模的高效激励。以中心频率9.40 GHz仿真设计的圆波导TE₀₁模激励器，在中心频率上的传输效率超过99.9%；在9.08~9.61 GHz的频率范围内，传输效率大于99%。实验测量结果表明，所加工激励器在较宽的频带范围内，传输损耗优于-0.2 dB，与仿真结果的差异主要来自于波导壁面的欧姆损耗和波同转换结构；器件工作频带内平坦特性良好，有利于开展测量工作。
- 模式激励器 /
- 圆波导 /
- TE₀₁模
Abstract: The design methodologies, numerical results for TE₀₁ circular waveguide mode transducer were reported. It is shown that, TE₀₁ circular waveguide mode can realize high transmission efficiency in a wide band by utilizing travelling wave power divide structures, realizing TE₁₀ rectangular waveguide mode divided into four TE₁₀ rectangular waveguide modes, and then combining to a TE₀₁ circular waveguide mode. The optimized transducer has a transmission efficiency of over 99.9% at 9.40 GHz, and exceeds 99.0% in the range of 9.08-9.61 GHz. Experimental results show that the transmission loss is less than -0.2 dB, which is mainly caused by waveguide ohmic loss and waveguide-coaxial adapter. However, the results also have verified the feasibility of the manufactured transducer.
- mode transducer /
- circular waveguide /
- TE₀₁ mode

HTML全文

图 1 6臂卷绕型模式激励器结构示意图

Figure 1. Structure of wrap-around mode converter

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图 2 6臂卷绕型模式激励器内部电场分布示意图

Figure 2. Electric field distribution in wrap-around mode converter@ 9.4 GHz

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图 3 圆波导TE₀₁模传输特性随频率的变化关系

Figure 3. Transmission efficiency of TE₀₁ mode vs frequency

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图 4 方圆模式激励器结构示意图

Figure 4. Structure of circular-rectangular waveguide mode converter

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图 5 方圆模式激励器内部电场分布示意图

Figure 5. Electric field distribution in circular-rectangular waveguidemode converter @ 9.4GHz

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图 6 功分型模式激励器结构示意图

Figure 6. Structure of power divider type mode converter

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图 7 功分型模式激励器内部电场分布

Figure 7. Electric field distribution in power divider type mode converter @9.4 GHz

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图 8 功分型模式激励器实物图

Figure 8. Photo of manufactured mode transducer

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图 9 圆波导TE₀₁模传输特性实测

Figure 9. Experimental result of transmission efficiency of TE₀₁ circular waveguide mode

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参考文献(9)

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