| 圆波导TE01模激励器设计及实验研究 |
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| 引用本文： | 张强,袁成卫,陈俊,余龙舟,赵雪龙.圆波导TE01模激励器设计及实验研究[J].强激光与粒子束,2018,30(6):063003-1-063003-4. |
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| 作者姓名： | 张强 袁成卫 陈俊 余龙舟 赵雪龙 |
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| 作者单位： | 1.国防科技大学 前沿交叉学科学院, 长沙 410073 |
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| 基金项目： | 国家自然科学基金项目61401485 |
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| 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。
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| 关 键 词： | 模式激励器 圆波导 TE01模 |
| 收稿时间： | 2017-11-14 |
Investigations on TE01 circular waveguide mode transducer |
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| Institution: | 1.College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China2.75836 Troops, PLA, Guangzhou 510000, China |
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| 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. |
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