A Cascaded W-Band Gyro-TWT With the Configuration of Coaxial and Circular Waveguides

被引：0

作者：

Cao, Yingjian ^{[1
]}

Liu, Guo ^{[1
]}

Wang, Yu ^{[1
]}

Jiang, Wei ^{[1
]}

Yao, Yelei ^{[1
]}

Wang, Jianxun ^{[1
]}

Luo, Yong ^{[1
,2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 610054, Peoples R China

[2] Lab Electromagnet Space Cognit & Intelligent Contr, Beijing 100089, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2023年 / 70卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Gain; Power generation; Power amplifiers; Electromagnetic waveguides; Coupling circuits; Oscillators; Electron beams; Coupling circuit; gyrotron traveling wave tube (gyro-TWT); high gain; high stability; AMPLIFIER; OPERATION; DESIGN;

D O I：

10.1109/TED.2023.3241879

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：

To realize a high-gain wideband millimeter-wave amplification, we present and simulate a W-band gyrotron traveling wave tube (gyro-TWT) with cascaded coaxial-and circular-waveguide amplifiers. The amplifiers are operated in a coaxial and circular TE01 mode, respec-tively, and driven by two 60-kV gyrating electron beams with a pitch factor of 1.2 but different beam currents of 1 and 10 A. They are designed to possess relatively low individual gains below all oscillation thresholds to maintain high stability and achieve a high total cascaded gain for the whole gyro-TWT. A coupling circuit is adopted to cascade these two sections, converting the coaxial TE01 mode to the circular one with a -3-dB bandwidth of 6.8 GHz (94.1- 100.9 GHz). particle-in-cell (PIC) simulation shows that the designed gyro-TWT can achieve a maximum saturated out-put power of 239.8 kW at 100 GHz, with a gain greater than 60 dB over a -3-dB bandwidth of 8.0 GHz (94.5-102.5 GHz).

引用

页码：1906 / 1911

页数：6

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