摘要
设计了一种能在S波段和C波段实现稳定输出的高功率相对论速调管放大器,并使用电磁粒子PIC程序进行了模拟研究。模拟结果表明:采用700kV,4kA的电子束,在注入微波功率340kW、注入微波频率分别为2.8GHz和3.2GHz的条件下,通过合理选择输入腔和中间腔的结构和工作模式、调节器件输出腔的腔长,模拟实现了S波段(3.2GHz)和C波段(5.6GHz)分别为1GW和490 MW的微波输出,束波转换效率分别约为35%和17%。
With the electromagnetic code,a frequency-tuned relativistic klystron amplifier(RKA)is designed and calculated.It is found that the operation frequency of the RKA can jump across S-band and C-band by adjusting the feeding frequency and the length of the output cavity.A 1GW averaged power over the oscillator period is generated by simulation,with 700 kV electron beam voltage,4kA current,and 340 kW feeding power.The frequency of the output microwave is 3.2GHz.The efficiency is about 35%.Meanwhile,a C-band microwave with a frequency of 5.6GHz and a power level of above 490 MW is generated when the feeding frequency is 2.8GHz and the output cavity length is 3.7cm.The efficiency is about 17%.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2016年第3期88-93,共6页
High Power Laser and Particle Beams
基金
中国工程物理研究院科学技术基金项目(2013B0402071
2015B0402096)
国家高技术发展计划项目
关键词
相对论速调管放大器
可调谐
高功率
跨波段
relativistic klystron amplifier
frequency tunability
high power
span-band
