A Novel Low Loss Sawtooth Slow Wave Structure for 0.66-THz Traveling Wave Tubes

被引：3

作者：

Zhang, Yinyu ^{[1
]}

Zheng, Yuan ^{[1
]}

Dong, Yang ^{[1
]}

Guo, Jingyu ^{[1
]}

Duan, Jingrui ^{[1
]}

Wang, Yuxin ^{[1
]}

Lu, Zhigang ^{[1
]}

Zhang, Ping ^{[1
]}

Wang, Shaomeng ^{[1
]}

Gong, Yubin ^{[1
]}

机构：

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

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2024年 / 52卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Low loss; slow wave structure (SWS); terahertz (THz) source; traveling wave tube (TWT); VACUUM ELECTRON DEVICE; APPLIED PHYSICS; TERAHERTZ; PROGRESS;

D O I：

10.1109/TPS.2024.3370256

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A novel low loss sawtooth (ST) slow wave structure (SWS) is proposed as a solution to the challenges presented by terahertz (THz) traveling wave tubes (TWTs), known for their machining difficulty and insertion loss. Compared with folded waveguide (FWG) SWS, the ST SWS is easier to machine and takes a 44.96% lower insertion loss. Driven by a pencil beam (PB) gun of 19.0 kV, 15.0 mA, and an input power of 1 mW, the comparative output performance of the ST circuit and FWG circuit is evaluated using the particle-in-cell (PIC) method. The ST circuit shows enhancement in both the maximum output power and 3-dB bandwidth, which improved by 13.21% and 42.86%, respectively.

引用

页码：1062 / 1068

页数：7

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