Particle simulation of novel type of reflector in multi-frequency relativistic backward wave oscillator

被引：0
作者：
机构：
[1] School of Physical Electrons, University of Electronic Science and Technology of China
来源：
Zhang, F. (lala08200626@sina.cn) | 1600年 / Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China卷 / 33期
关键词：
CRBWO; High power microwave; Multi-frequency; New pattern resonant reflectors; Particle simulation;
D O I：
10.3969/j.issn.1672-7126.2013.07.11
中图分类号：
学科分类号：
摘要：
The two novel types of resonant reflector with dissymmetric structures were developed as the high power multi-frequency output, and used in the design of the multi-frequency coaxial relativistic backward wave oscillator (CRBWO), respectively. The newly-developed reflectors were calculated with 2.5-dimension particle-in-cell (PIC) simulation code CHIPIC. The simulated results show that the dual frequency CRBWO, equipped with the two types of resonant reflector, generated stable dual frequency output in the X-band, outperforming the conventional counterparts when it comes to the stability of the operating voltage and magnetic field. Moreover, with an electron beam of 480 keV, 7.5 kA, and guided by a magnetic field of 2.7 T, the CRBWO equipped with the 2nd type of the newly-developed reflector produced stable multi-frequency (three-, and four-frequency) output with the standing wave conversion efficiencies of 15.3% and 13.9%, respectively, which are much higher than those of the conventional multi-frequency, high power microwave devices.
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页码：678 / 683
页数：5
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