Design and Analysis of a Diode Magnetron Injection Gun for a G-Band Gyro-TWT

被引：9

作者：

Jiang, Wei ^{[1
]}

Liu, Yunpeng ^{[1
]}

Lu, Chaoxuan ^{[1
]}

Dai, Boxin ^{[1
]}

Wang, Jianxun ^{[1
]}

Pu, Youlei ^{[1
]}

Liu, Guo ^{[1
]}

Wu, Zewei ^{[1
]}

Luo, Yong ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2022年 / 69卷 / 03期

关键词：

Magnetic tunneling; Cathodes; Magnetic circuits; Electron traps; Magnetic resonance imaging; Magnetic analysis; Thermal stability; G-band; gyro-traveling wave tube (Gyro-TWT); magnetron injection gun (MIG); thermal analysis; transportation stability; 1; MW; OPTIMIZATION; SIMULATION; ANODE; 2-MW; MIG;

D O I：

10.1109/TED.2022.3144649

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A diode magnetron injection gun (MIG) has been designed and analyzed for G-band gyro-traveling wave tube (Gyro-TWT). A novel curved surface emitter is proposed to enhance the beam quality. An electron beam with velocity ratio of 1.20 and transverse velocity spread of 2.11% is obtained. The beam transportation stability with geometry misalignment is also analyzed, and the assembly accuracy should be controlled under 0.1 mm. The stray electron is intercepted by the capture structure to avoid the bombardment to the interaction circuit. Then the cathode is fabricated, and the temperature distribution is measured. The experimental result matches well with the simulation. The electron beam quality considering expansion, surface roughness, and thermal emission is estimated, and the total transverse velocity spread is about 2.63%.

引用

页码：1429 / 1434

页数：6

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