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

被引：85

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.

引用

页数：3