A novel omega-shaped microstrip slow-wave structure for 60-GHz traveling-wave tube

机译：用于60 GHz行波管的新型Ω型微带慢波结构

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摘要

In this paper, a novel microstrip meander-line slow-wave structure (SWS) is proposed for using in V-band traveling-wave tube (TWT). The new omega-shaped microstrip meander-line slow-wave structure has higher interaction impedance by contrasting analysis of the conven-tional U-shaped microstrip meander-line SWS. The transmission characteristics, dispersion characteristic, coupl-ing impedance and beam-wave interaction are simulated by utilizing the simulation software HFSS and CST. The calculation of beam-wave interaction indicated that, at a beam current of 0.1 A and a beam voltage of 7.1 kV, the new microstrip meander-line SWS is capable of delivering more than 28.5 W output power. And its interaction efficiency reaches 12.3% with a transient 3dB bandwidth of 5 GHz (ranging 57.5 GHz to 62.5 GHz).

机译：本文提出了一种新颖的微带曲折线慢波结构（SWS），用于V波段行波管（TWT）。通过对比传统的U形微带弯折线SWS，新型的Ω形微带弯折线慢波结构具有更高的相互作用阻抗。利用仿真软件HFSS和CST对传输特性，色散特性，耦合阻抗和束波相互作用进行了仿真。束波相互作用的计算表明，在束电流为0.1 A和束电压为7.1 kV的情况下，新型微带曲折线SWS能够提供超过28.5 W的输出功率。在5 GHz的瞬态3dB带宽（范围从57.5 GHz到62.5 GHz）下，其交互效率达到12.3％。

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来源
《2013 International Workshop on Microwave and Millimeter Wave Circuits and System Technology》|2013年|328-331|共4页
会议地点 Emeishan(CN)
作者
Liao Lei; Wei Yanyu; Luwei Lu; Linna Yue;
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作者单位

National Key Laboratory of science and Technology on Vacuum Electronics, University of Electronic Science and Technology of China, Chengdu, Sichuan, China, 610054c;

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原文格式 PDF
正文语种 eng
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关键词
Microstrip meander-line slow-wave structure; beam-wave interaction; coupling impedance; dispersion characteristic;

机译：微带曲折线慢波结构；束波相互作用；耦合阻抗；色散特性；;

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1. Symmetric Double V-Shaped Microstrip Meander-Line Slow-Wave Structure for W-Band Traveling-Wave Tube [J] . Fei Shen Electron Devices, IEEE Transactions on . 2012,第5期

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2. Analysis of some periodic structures of microwave tubes: part I: analysis of helical slow-wave structures of traveling-wave tubes [J] . Kesari Vishal, Basu B. N. Journal of Electromagnetic Waves and Applications . 2017,第1a3期

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3. Experimental Validation of Phase Velocity and Interaction Impedance of Meander-Line Slow-Wave Structures for Space Traveling-Wave Tubes [J] . Socuellamos Juan M., Dionisio Roberto, Letizia Rosa, IEEE Transactions on Microwave Theory and Techniques . 2021,第4期

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4. A novel omega-shaped microstrip slow-wave structure for 60-GHz traveling-wave tube [C] . Liao Lei, Wei Yanyu, Luwei Lu, International Workshop on Microwave and Millimeter Wave Circuits and System Technology . 2013

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5. Impact of Random Fabrication Errors on the Performance of a Contrawound Helix Slow-Wave Structure for a Millimeter-Wave Traveling Wave Tube [D] . Sengele, Sean 2012

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8. Evaluation of some slow-wave vane structures for aminiature traveling-wave tube at 30 GHz [R] . Kavanagh, Frank, Ebihara, Ben, Wallett, Thomas M., 1994

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A novel omega-shaped microstrip slow-wave structure for 60-GHz traveling-wave tube

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