DESIGN OF A V-BAND HIGH-POWER SHEET-BEAM COUPLED-CAVITY TRAVELING-WAVE TUBE

被引：22
作者：
Liu, Y. [1 ]
Xu, J. [1 ]
Wei, Y. [1 ]
Xu, X. [1 ]
Shen, F. [1 ]
Huang, M. [1 ]
Tang, T. [1 ]
Wang, W. [1 ]
Gong, Y. [1 ]
Feng, J. [2 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Phys Elect, Natl Key Lab Sci & Technol Vacuum Elect, Chengdu 610054, Peoples R China
[2] Beijing Vacuum Elect Res Inst, Natl Key Lab Sci & Technol Vacuum Elect, Beijing 100015, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2012年 / 123卷
关键词：
GUIDE;
D O I：
10.2528/PIER11092906
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 design and analysis of a high-power wideband sheet-beam coupled-cavity traveling-wave tube operating at V-band is presented. The interaction circuit employs three-slot doubly periodic staggered-ladder coupled-cavity slow-wave structure, and a 5 :1 aspect-ratio sheet electron beam is used to interact with the circuit. Combined with design of the well-matched input and output couplers, a 3-D particle-in-cell model of the sheet-beam coupled-cavity traveling-wave tube is constructed. The electromagnetic characteristics and the beam-wave interaction of the tube are investigated. From our calculations, this tube can produce saturated output power over 630 Watts ranging from 58 GHz to 64 GHz when the cathode voltage and beam current are set to 13.2 kV and 300 mA, respectively. The corresponding saturated gain and electron efficiency can reach over 32.5 dB and 15.9%. Compared with the circular beam devices, the designed sheet-beam TWT has absolute advantage in power capability, and also it is more competitive in bandwidth and electron efficiency.
引用
收藏
页码：31 / 45
页数：15
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