A high-efficiency overmoded klystron-like relativistic backward wave oscillator with low guiding magnetic field

被引：50

作者：

Xiao, Renzhen ^{[1
]}

Tan, Weibing ^{[1
]}

Li, Xiaoze ^{[1
]}

Song, Zhimin ^{[1
]}

Sun, Jun ^{[1
]}

Chen, Changhua ^{[1
]}

机构：

[1] NW Inst Nucl Technol, Natl Key Lab Sci & Technol High Power Microwave, Xian 710024, Peoples R China

来源：

PHYSICS OF PLASMAS | 2012年 / 19卷 / 09期

基金：

中国国家自然科学基金;

关键词：

SELF-MODULATION; GENERATION; POWER; TUBE;

D O I：

10.1063/1.4751252

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 klystron-like relativistic backward wave oscillator with a ratio of transverse dimension to free-space wavelength being about four is presented. In the beam-wave interaction region, the electron beam interacts with surface wave and volume wave simultaneously. The cathode holder plays an important role in the reflection of backward waves. A guard electrode, an electron collector ring, and a reflection ring are used to optimize the beam-wave interaction. The particle in cell simulation results reveal that microwaves with a power of 2GW and a frequency of 12.3 GHz are generated with an efficiency of 42% when the diode voltage is 400 kV, the beam current 12 kA, and the magnetic field 0.48 T. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4751252]

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页数：5

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