High-Efficiency W-Band Pulsed TWT With Three-Stage Depressed Collector

被引：5

作者：

Zhang, Xiaoqing ^{[1
]}

Feng, Jinjun ^{[1
]}

Cai, Jun ^{[1
]}

Du, Yinghua ^{[1
]}

Dong, Ruitong ^{[1
]}

Yang, Jinsheng ^{[1
]}

机构：

[1] Beijing Vacuum Elect Res Inst, Natl Key Lab Sci & Technol Vacuum Elect, Beijing 100015, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2022年 / 32卷 / 02期

关键词：

Power generation; Bandwidth; Prototypes; Electrodes; Microwave circuits; Wireless communication; Vacuum electronics; Folded waveguide (FWG); multistage depressed collectors (MDCs); traveling wave tubes (TWTs); W-band; DESIGN;

D O I：

10.1109/LMWC.2021.3122124

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：

This letter presents the design and experimental study of a W-band traveling wave tube (TWT) with an overall efficiency of over 40% using multistage depressed collectors (MDCs). The folded waveguide (FWG) with a high coupling impedance and phase velocity tapering (PVT) circuit has been used to achieve the electronic efficiency of over 10%. Furthermore, a three-stage depressed collector with a high recovery efficiency was designed to enhance the overall efficiency in W-band pulsed TWTs. A prototype tube was then fabricated and tested with a beam current of 193 mA and a beam voltage of 20.8 kV. The testing data shows that the overall efficiency of 40.6% was obtained at over 410 W output power within 5 GHz at 20% duty cycle, with the maximum efficiency of 47%. That is the highest efficiency test results of W-band TWTs reported so far.

引用

页码：121 / 124

页数：4

共 12 条

[1] Folded Waveguide Slow Wave Structure With Modified Circular Bends
Cai, Jun
Feng, Jinjun
Wu, Xianping
[J]. IEEE TRANSACTIONS ON ELECTRON DEVICES, 2014, 61 (10) : 3534 - 3538
[2] Chong CK, 2017, IEEE INT VAC ELECT C
[3] Demonstration of a W-Band Traveling-Wave Tube Power Amplifier With 10-GHz Bandwidth
Cook, Alan M.
Wright, Edward L.
Nguyen, Khanh T.
Joye, Colin D.
Rodgers, John C.
Jaynes, Reginald L.
Chernyavskiy, Igor A.
Wood, Frank N.
Albright, Benjamin S., Jr.
Abe, David K.
Calame, Jeffrey P.
Levush, Baruch
Pershing, Dean E.
Atkinson, John
Kimura, Takuji
[J]. IEEE TRANSACTIONS ON ELECTRON DEVICES, 2021, 68 (05) : 2492 - 2498
[4] Ding MQ, 2008, IEEE INT VAC ELECT C, P404
[5] Du Y., 2016, P IEEE INT VAC EL C, P1, DOI DOI 10.1109/IVEC.2016
[6] Development of W-band Folded Waveguide Pulsed TWTs
Feng, Jinjun
Cai, Jun
Hu, Yinfu
Wu, Xianping
Du, Yinghua
Liu, Jingkai
Pan, Pan
Li, Hanyan
[J]. IEEE TRANSACTIONS ON ELECTRON DEVICES, 2014, 61 (06) : 1721 - 1725
[7] Kowalczyk R., 2016, PROC IEEE INT VAC EL, P513, DOI DOI 10.1109/IVEC.2016.7561861
[8] Recent Developments to the Microwave Tube Simulator Suite
Li, Bin
Li, Jian-Qing
Hu, Quan
Hu, Yu-Lu
Xu, Li
Huang, Tao
Jin, Xiao-Lin
Zhu, Xiao-Fang
Yang, Zhong-Hai
[J]. IEEE TRANSACTIONS ON ELECTRON DEVICES, 2014, 61 (06) : 1735 - 1741
[9] High-Average-Power W-band TWT Development
Theiss, Alan J.
Meadows, Clark J.
Freeman, Ray
True, Richard B.
Martin, J. Michael
Montgomery, Keith L.
[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 2010, 38 (06) : 1239 - 1243
[10] Design of a Multistage Depressed Collector for W-Band Pulsed Traveling-Wave Tubes
Yang, Jinsheng
Zhang, Xiaoqing
Du, Yinghua
Cai, Jun
Feng, Jinjun
[J]. IEEE TRANSACTIONS ON ELECTRON DEVICES, 2019, 66 (09) : 4056 - 4061

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