| TM01-TE11三弯曲圆波导模式转换器 |
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| 引用本文： | 张强,袁成卫,刘列.TM01-TE11三弯曲圆波导模式转换器[J].强激光与粒子束,2008,20(7). |
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| 作者姓名： | 张强 袁成卫 刘列 |
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| 作者单位： | 国防科学技术大学 光电科学与工程学院， 长沙 410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 从理论推导、理论设计和数值模拟3个方面对三弯曲圆波导模式转换器进行分析，得到了TM01-TE11模的功率转换效率解析公式和转换效率达到最高时的取值条件。以中心工作频率为4.25 GHz、波导半径分别为3.0 cm和3.5 cm的两个转换器为例进行了理论计算和数值模拟，模拟结果表明：它们的转换效率分别达到了99.64%和98.62%，高于90%的相对带宽分别达到了9.88%和12.71%。
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| 关 键 词： | 圆波导 模式转换 模式耦合 数值模拟 |
| 收稿时间： | 1900-01-01; |
TM01-TE11 mode converter of tri-bend circular waveguides |
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| ZHANG Qiang,YUAN Cheng-wei,LIU Lie.TM01-TE11 mode converter of tri-bend circular waveguides[J].High Power Laser and Particle Beams,2008,20(7). |
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| Authors: | ZHANG Qiang YUAN Cheng-wei LIU Lie |
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| Institution: | College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | The structure of tri-bend circular waveguides was studied by theoretical calculation, theoretical design and numerical simulation. The TM01-TE11 conversion efficiency formula were derived and the condition for the highest conversion efficiency was obtained. Two mode converters of this kind with an inner radius of 3.0 cm and 3.5 cm were analyzed. The conversion efficiency exceeded 99.64% and 98.62% at 4.25 GHz and its bandwidth of power conversion efficiency exceeding 90% reached 9.88% and 12.71%, respectively. The simulation verified the theoretical design. |
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| Keywords: | Mode conversion Mode coupling Numerical simulation |
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