Traveling-Wave Amplification in a Circuit With Nonuniform Grating

被引：3
作者：
Ponomarenko, S. S. [1 ]
Likhachev, A. A. [1 ]
Vlasenko, S. A. [1 ,2 ]
Kovshov, Yu S. [1 ]
Stoyanova, V. V. [1 ]
Kishko, S. A. [1 ]
Khutoryan, E. M. [1 ]
Kuleshov, A. N. [1 ]
Lukin, K. A. [1 ]
Tatematsu, Y. [3 ]
Tani, M. [3 ]
机构：
[1] Natl Acad Sci Ukraine IRE NASU, O Ya Usikov Inst Radio Phys & Elect, UA-61085 Kharkiv, Ukraine
[2] Kharkov Natl Univ, Sch Chem, UA-61022 Kharkiv, Ukraine
[3] Univ Fukui FIR FU, Res Ctr Dev Far Infrared Reg, Fukui 9108507, Japan
来源：
IEEE TRANSACTIONS ON ELECTRON DEVICES | 2021年 / 68卷 / 10期
关键词：
Nonuniform grating (NUG); sheet electron beam; slow wave circuit; traveling-wave tube (TWT); SUB-THZ; TUBE; POWER; PERFORMANCE; AMPLIFIER; GAIN;
D O I：
10.1109/TED.2021.3105951
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：
The results of both numerical simulations and experimental study of the traveling-wave amplification in the W-band circuit with the nonuniform grating are presented and discussed. The circuit supports a wide sheet electron beam that is promising for a signal gain increase in terahertz (THz) amplifiers. The small-signal gain up to 30 dB is predicted by the simulations of the two-section amplifier in the frequency range from 94 to 99 GHz. The experimental tests of the 14.3-mm input section, powered by a 3.8 kV, 100-mA sheet electron beam, revealed the linear gain of 12 dB and instantaneous bandwidth of 2 GHz. The full bandwidth of 5 GHz has been experimentally observed by adjusting the beam voltage from 3.6 to 4.1 kV.
引用
收藏
页码：5232 / 5237
页数：6
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