Efficiency enhancement of a high power microwave generator based on a relativistic backward wave oscillator with a resonant reflector

被引：83
|
作者：
Xiao, Renzhen [1 ]
Chen, Changhua [1 ]
Zhang, Xiaowei [1 ]
Sun, Jun [1 ]
机构：
[1] NW Inst Nucl Technol, Xian 710024, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 05期
关键词：
backward wave oscillators; electric generators; microwave generation; microwave oscillators; SPLIT-CAVITY OSCILLATOR; OUTPUT POWER; BEAM; BWO;
D O I：
10.1063/1.3086635
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A high power microwave generator based on a relativistic backward wave oscillator with a resonant reflector (BWO-RR) has been proposed in order to improve microwave conversion efficiency. In this device, the slow wave structure is separated by a modulation cavity, which significantly decreases the energy spread of the modulated beam electrons. At the end of the slow wave structure, an extraction cavity is employed to increase the beam-wave interaction and optimize the extraction of the output power. Particle-in-cell simulations show that a microwave efficiency of 46% has been obtained compared with that of 34% obtained with the BWO-RR.
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页数：3
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