| 毫米波折叠波导行波管输入输出过渡波导设计 |
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| 引用本文： | 唐涛,巩华荣,宫玉彬,王文祥.毫米波折叠波导行波管输入输出过渡波导设计[J].强激光与粒子束,2010,22(5). |
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| 作者姓名： | 唐涛 巩华荣 宫玉彬 王文祥 |
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| 作者单位： | 电子科技大学 物理电子学院 大功率微波电真空器件技术重点实验室， 成都 610054 |
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| 基金项目： | 大功率微波电真空器件技术重点实验室基金，教育部博士点(新教师)基金，国家自然科学基金杰出青年科学基金 |
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| 摘 要： | 折叠波导以其宽频带、加工方便而成为一类重要的毫米波与太赫兹波段行波管慢波线。针对折叠波导慢波系统与标准波导的匹配过渡连接,通过等效电路分析与电磁计算软件模拟,设计出了直渐变波导、双曲圆弧渐变波导、切比雪夫阶梯渐变波导3种输入输出过渡波导结构,分析了各种过渡波导的优缺点及结构尺寸对性能的影响。计算表明,经过合理优化的设计,3种过渡结构均可以使反射系数在28~40 GHz波段小于0.05。
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| 关 键 词： | 行波管 过渡波导 折叠波导 慢波结构 |
| 收稿时间： | 1900-01-01; |
Design of transition waveguide for millimeter wave folded waveguide traveling wave tubes |
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| Tang Tao,Gong Huarong,Gong Yubin,Wang Wenxiang.Design of transition waveguide for millimeter wave folded waveguide traveling wave tubes[J].High Power Laser and Particle Beams,2010,22(5). |
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| Authors: | Tang Tao Gong Huarong Gong Yubin Wang Wenxiang |
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| Institution: | National Key Laboratory of High Power Vacuum Electronics, School of Physical Electronics,University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | The folded waveguide is widely studied in the world due to its broad band. The transition waveguides between folded waveguide slow-wave structure and 8 mm waveguide are studied by using numerical method. Three transition waveguides, i.e. linearly tapered waveguide, dual arc waveguide and Chebyshev stepped waveguide, are designed for millimeter wave folded waveguide traveling wave tubes, and their merits and demerits are analyzed. The relationship between the dimensions and performance of the waveguides is obtained. The simulation results show that the reflectivity is below 0.05 within 28~40 GHz for the three structures with rational optimization． |
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| Keywords: | transition waveguide folded waveguide slow wave structure |
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