1.3GHz 20kW固态微波功率源的测试和运行（英文）  

1.3GHz 20kW solid state amplifier for DC-SRF photoinjector at Peking University

作　　者：王芳[1] 林林[1] 冯立文[1] 高永凤[1] 庄德浩 全胜文[1] 张保澄[1] 郝建奎[1] 张建华[2] 袁震宇[2] 刘克新[1] 

机构地区：[1]北京大学核物理与核技术国家重点实验室,北京100871 [2]北京北广科技股份有限公司,北京101312

出　　处：《强激光与粒子束》2016年第12期122-127,共6页High Power Laser and Particle Beams

基　　金：supported by National Basic Research Project(2011CB808302)

摘　　要：北京大学3.5-cell直流超导(DC-SRF)光阴极注入器需要一台连续波功率20kW的1.3GHz微波功率源。为此北京大学和北京北广科技股份有限公司联合研制了一台由88个放大模块组成的固态微波功率放大器,这是国内首台L波段连续波大功率固态功率源。在简要介绍这台微波功率放大器设计的基础上,主要描述其调试过程和重要参数检测并着重讨论了全反射问题。测试结果显示这台功率源的各项参数均达到设计指标,在输出功率20kW时的效率为34%,增益大于85dB;在整个功率输出范围其增益和相移的变化分别为1.6dB和9.5°。目前这台功率源已在DC-SRF光阴极注入器调试运行中稳定工作超过2000h。The 3.5-cell direct current-superconductive （DC-SRF） photoinjector requires a 1.3 GHz 20 kW continuous wave （CW） power amplifier. The R＆D of a solid state amplifier （SSA） consisting of 88 unit modules with individual power supplies, which is the first high power C〉10 kW） CW L-band SSA in China, has been carried out under the cooperation of Peking University and Beijing BBEF Science ＆ Technology Co. Ltd. （BBEF）. The RF test results show that the main parameters of this SSA reach the designed values. The efficiency is 34% at full output power of 20 kW and the gain is higher than 85 dB. The phase shift and gain vary within 9.5° and 1.6 dB respectively when the output power changes from 1 to 20 kW. It has been put into operation for more than 2000 h. After a brief description of the design, this paper mainly introduces the commissioning process of the SSA and discusses the problem of full reflection.

关 键 词：直流超导光阴极注入器 固态放大器 高度模块化 全反射 

分 类 号：O57[理学—粒子物理与原子核物理]