Mingguang Huang

Chinese Academy of Sciences

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Pu‐Kun Liu

Peking University

Linlin Cao

Aerospace Information Research Institute

Baoliang Hao

Beijing Vaccum Electronic Research Institute

Jiandong Zhao

Beijing Jiaotong University

Fei Li

Aerospace Information Research Institute

Xiao Liu

National Space Science Center

Hongxia Yi

Chinese Academy of Sciences

Qinglun Liu

Chinese Academy of Sciences

Xian‐Xia Li

Chinese Academy of Sciences

Chao‐Hai Du

Peking University

Cooperative Institutions

Chinese Academy of Sciences

Aerospace Information Research Institute

Institute of Electronics

University of Chinese Academy of Sciences

University of Science and Technology of China

Beijing Vaccum Electronic Research Institute

Peking University

Electronics Research Institute

Shandong University

Huazhong University of Science and Technology

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Investigation of W-band Diverse-shaped Groove-loaded Folded Waveguide Traveling-wave Tubes

JOURNAL OF ELECTRONICS INFORMATION TECHNOLOGY (2013)

Bo Peng Jun He Mingguang Huang Baoliang Hao Pu‐Kun Liu

该文提出了3种槽加载折叠波导行波管慢波结构：三角形、梯形和燕尾形槽加载折叠波导。分析比较了不同槽形状对慢波结构的色散特性和耦合阻抗的影响。利用粒子模拟的方法对W波段4种槽加载折叠波导行波管的非线性注-波互作用进行了研究；在相同的电子注参数和输入功率的条件下，对输出功率、电子效率和增益等参量进行了比较。在多种槽加载结构中，梯形槽加载折叠波导输出功率(255 W)和增益(37.1 dB)最大，电子效率最高(10.7%)；燕尾形槽加载折叠波导达到饱和所需要的互作用电路最短(64.2 mm)；三角形槽加载折叠波导的3 dB带宽最宽。

Groove (engineering)

Traveling-wave tube

Waveguide

10.3724/sp.j.1146.2011.01219

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Citations (1)

Demonstration of W-Band 30-W Continuous-Wave Folded Waveguide Traveling Wave Tube with Lowered Operation Voltage and Improved Gain Flatness

Journal of Infrared Millimeter and Terahertz Waves (2020)

Fei Li Xiao Liu Tianjun Ma Yuhui Sun Jiandong Zhao

Traveling-wave tube

Flatness (cosmology)

Attenuator (electronics)

Electron gun

W band

10.1007/s10762-020-00732-z

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Citations (7)

Experiment for Evaluating a K-Band Space TWT Electron Beam

IEEE Transactions on Electron Devices (2021)

Yu-Xiang Wei Shuqing Liu Mingguang Huang Xian‐Xia Li Jinyue Liu

The electron beam of a K-band space traveling-wave tube (TWT) has been investigated in a beam measurement system in this article. The primary beam emitted from a Pierce-type electron gun is scanned by a Faraday cup probe, and the beam current density distribution and envelope are determined. The spent beam is also diagnosed with a novel retarding field energy analyzer (RFEA) by using the monopulse measurement method, and a comparison of velocity distribution between the experimental result and simulation is presented.

Traveling-wave tube

Faraday cup

Electron gun

Envelope (radar)

Vacuum tube

M squared

Klystron

10.1109/ted.2021.3083533

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Citations (1)

A fabrication method of high frequency structure for THz Travelling Wave Tubes

Qinglun Liu Futing Yi Mingguang Huang Gang Wang Liucong Yao

A double-grating rectangular waveguide with a round beam channel is proposed as the slow-wave interaction structure of a 310GHz travelling wave tube (TWT). We describe the fabrication of the slow wave structure and the assembly method of RF windows.

Traveling-wave tube

Waveguide

10.1109/ivec.2018.8391579

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Citations (2)

Design and analysis of retarding field energy analyzer with controllable focusing voltage

High Power Laser and Particle Beams (2015)

Hong-Li Shen Xian‐Xia Li Mingguang Huang He Jun

In order to solve the problems of poor insulation, low resolution and sparking etc., a retarding field energy analyzer is upgraded, simulated and analyzed to test and analyze the electron beam parameters accurately, which derive from the guns of traveling wave tubes and beams after beam-wave interaction, providing a reference for the design, performance improvement and development of the traveling wave tubes. The retarding energy analyzer with a controllable focusing voltage insulates high-voltage cylinder electrically from retarding mesh and applies a controllable small voltage between them. The second electrostatic lens accelerates and focuses the diverging beam near the area of the mesh, to weaken too much expansion in the region of the weak part that the first lens functions, due to space-particle effects and beam emittance, etc. and optimize the slope of the particle trajectory and resolution. Meanwhile, the whole structure tends to miniaturizition and lightweight. A computer code called CST is used to simulate the particle distribution in particle interfaces and the whole electric field distribution, and Matlab code helps data processing and exports the key parameters. Besides, the paper focuses on analyzing the optimization and improvement of the performance reflected by the resolution and Full Width at Half Maximum, etc. The result shows that this energy analyzer is competent to apply to the experiments of electron beams.

Faraday cup

Acceleration voltage

Electron gun

Traveling-wave tube

Beam emittance

10.11884/hplpb201527.053002

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Photonic crystal-structure for corrugated rectangular waveguide slow-wave structure

Junting Cui Hongxia Yi Mingguang Huang Xiang Dong

A slow-wave structure(SWS) based on corrugated rectangular waveguide(CRWG) assisted by photonic crystals(PhCs) lateral walls for traveling wave tubes(TWT) is demonstated. Compared with traditional structure, it overcomes mode-competition problems and improves the stability of TWT. In this paper, The PhC-rectangular corrugated waveguide is designed for high output power.

Waveguide

Traveling-wave tube

10.1109/ivec.2016.7561886

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13.6: Development of 40W 26.5–40GHz helix-TWT with 37% overall efficiency

Mingguang Huang Baoliang Hao Pu‐Kun Liu Wei Liu

A new 26.5-40 GHz helix-TWT with high efficiency has been developed at the Institute of Electronic, Chinese Academy of Sciences, China. The main methods include the optimization of slow wave structure and large signal simulation, and a special 5-stage multistage depressed collector to increase power recovery. The test results show that this device has an average power of 40 W, a gain of more than 38 dB, an overall efficiency of more than 37%.

Helix (gastropod)

SIGNAL (programming language)

10.1109/ivelec.2010.5503427

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Citations (2)

60W以上のTHz折り返し導波路TWTの低速波構造の設計と研究【JST・京大機械翻訳】

Journal of Physics Conference Series (2020)

Zhang Xiaohan Linlin Cao Li Fei He Jun Mingguang Huang

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Design of high electron efficiency for millimetre wave TWT

Mingguang Huang Shaolun Cai Jinjun Feng

An optimised design for high electron efficiency in the interaction in the interaction section has been put forward and simulated with TWTCAD. The experimental results for a Ka band TWT showed that the interaction efficiency reached 20% with 3 GHz bandwidth.

Millimetre wave

Extremely high frequency

10.1109/ivelec.2007.4283219

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3D simulation of electron gun and beam transport for W-band TWT

Yinfu Hu Jinjun Feng Xianping Wu Jun Cai Youhuan Liang

This paper described the 3D simulation method and results of electron gun and beam transport for a W-band TWT with MAFIA simulation code.

Electron gun

10.1109/ivelec.2007.4283233

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