基于相位再同步技术的W波段高效率分布作用振荡器的研究  

Investigation on a W-band high efficiency extended interaction oscillator based on phase re-synchronization technology

作　　者：王自成 尚新文 曹林林 唐伯俊 肖刘 WANG Zi-Cheng;SHANG Xin-Wen;CAO Lin-Lin;TANG Bo-Jun;XIAO Liu(Key Laboratory of Science and Technology on High Power Microwave Sources and Technologies,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 101400,China;School of Electric,Electrical and Communicaion Engineering,University of Chinese Academy of Sciences,Beijing 100039,China)

机构地区：[1]中国科学院空天信息创新研究院高功率微波源与技术国防重点实验室,北京101400 [2]中国科学院大学电子电气与通信工程学院,北京100039

出　　处：《红外与毫米波学报》2020年第2期211-220,共10页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金(61172016)。

摘　　要：对基于12个周期的交错双排矩形波导慢波结构(staggered double rectangular waveguide slow wave structure,简记为SDRWSWS)的单谐振腔94.5GHz分布作用振荡器(extended interaction oscillator,EIO)进行了计算机模拟,给出了通过计算机模拟确定谐振腔结构参数及电子注参数的方法和步骤。提出了"相位再同步"的高效率方法,将谐振腔中从电子注输入端数起的第5~6个周期的慢波结构的周期降低到原来的90%左右,改变了谐振腔中轴向电场强度的分布,使轴向电场强度在远离输出口一端相对降低,而在靠近输出口一端相对升高,有助于电子注的调制随着电子注的行进而加强;同时,使在靠近输出口一端的轴向电场强度的相位增大了51.6°,从而与电子注的空间电荷波的相位保持同步并从电子注提取更多能量。计算机模拟结果证实,采用该技术的分布作用振荡器的功率和电子效率都得到显著提高,改善最大的数值是原来的2倍以上。An extended interaction oscillator(EIO) based on a single cavity composed of 12 periods of staggered double rectangular waveguide slow wave structure(SDRWSWS) is modeled and calculated on computer,those methods and steps for determining the structural parameters and the beam parameters are given.A new method called "phase re-synchronization technology" is proposed to improve electron efficiency of EIO,the method is to decrease the periods of the fifth and sixth periods of SDRWSWS counted from the entrance of the beam by 10%,so that the magnitude of the z component of electric field intensity becomes weaker in the segment which is far from the output port,but becomes stronger in the segment which is near from the output port,and such an E_z distribution is in favor of good bunching in the beam as the beam is proceeding.On the other hand,the phase of the z component of electric field intensity increases about 51.60 between the 7 to 12 periods,so that the electric field maintains synchronization with the space electric charge wave in the beam and abstracts more kinetic energy from the beam.Computer simulation results show that both power and electron efficiency become higher conspicuously,the maximum improved values are over double of unimproved ones.

关 键 词：分布作用振荡器 相位再同步技术 交错双排矩形波导慢波结构 电子效率 

分 类 号：TN128[电子电信—物理电子学]