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

被引：7

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 [J].

Cai, Jun ;

Feng, Jinjun ;

Wu, Xianping .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2014, 61 (10) :3534-3538

[2]

Chong C. K., 2017, P IEEE 18 INT VAC EL, P1, DOI [10.1109/IVEC.2017.8289730, DOI 10.1109/IVEC.2017.8289730]

[3] Demonstration of a W-Band Traveling-Wave Tube Power Amplifier With 10-GHz Bandwidth [J].

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 .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2021, 68 (05) :2492-2498

[4]

Ding MQ, 2008, IEEE INT VAC ELECT C, P404

[5] Development of W-band Folded Waveguide Pulsed TWTs [J].

Feng, Jinjun ;

Cai, Jun ;

Hu, Yinfu ;

Wu, Xianping ;

Du, Yinghua ;

Liu, Jingkai ;

Pan, Pan ;

Li, Hanyan .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2014, 61 (06) :1721-1725

[6]

Hu Y., 2016, P IEEE INT VAC EL C, P1, DOI [10.1109/IVEC.2016, DOI 10.1109/IVEC.2016]

[7]

Kowalczyk Richard, 2016, IEEE INT VACUUM ELEC

[8] Recent Developments to the Microwave Tube Simulator Suite [J].

Li, Bin ;

Li, Jian-Qing ;

Hu, Quan ;

Hu, Yu-Lu ;

Xu, Li ;

Huang, Tao ;

Jin, Xiao-Lin ;

Zhu, Xiao-Fang ;

Yang, Zhong-Hai .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2014, 61 (06) :1735-1741

[9] High-Average-Power W-band TWT Development [J].

Theiss, Alan J. ;

Meadows, Clark J. ;

Freeman, Ray ;

True, Richard B. ;

Martin, J. Michael ;

Montgomery, Keith L. .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2010, 38 (06) :1239-1243

[10] Design of a Multistage Depressed Collector for W-Band Pulsed Traveling-Wave Tubes [J].

Yang, Jinsheng ;

Zhang, Xiaoqing ;

Du, Yinghua ;

Cai, Jun ;

Feng, Jinjun .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2019, 66 (09) :4056-4061

← 1 2 →