Dual-Mode Terahertz Extended Interaction Oscillator Driven by a Pseudospark-Sourced Sheet Electron Beam  

作　　者：Jie Xie Xue-Song Yuan Liang Zhang Adrian W.Cross Hua-Bi Yin Qing-Yun Chen Tong-Bin Yang Xiao-Tao Xu Yang Yan Lin Meng 

机构地区：[1]School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054 [2]Department of Physics,University of Strathclyde,Glasgow G4 0NG

出　　处：《Journal of Electronic Science and Technology》2021年第3期243-254,共12页电子科技学刊（英文版）

基　　金：the National Natural Science Foundation of China under Grant No.61771096;the Fundamental Research Funds for the Central Universities under Grant No.ZYGX2016J059;the National Basic Research Program of China under Grant No.2013CB933603;the UK Engineering and Physical Sciences Research Council(EPSRC)under Grant No.EP/S00968X/1。

摘　　要：A terahertz dual-mode extended interaction oscillator (EIO) driven by a pseudospark-sourced sheet electron beam (SEB) was presented.The major advantages of the newly developed circuit include 1) high-density SEB interacting with the TM_(11) and TM_(31) modes,respectively,and 2) high output power of over 1 kW at the subterahertz frequency range.Two different types of 2π modes and their output characteristics were studied,and the circuit was optimized to ensure efficient outputs of two standing-wave modes.The three-dimensional (3D) particle-in-cell (PIC) simulation predicts the maximum output power of 1.3 kW with the 3-dB bandwidth of ~0.5 GHz at 303 GHz when operating at the TM_(11)mode,and 3.18 kW with the 3-dB bandwidth of ~0.85 GHz at 364 GHz when operating at the TM_(31)mode.

关 键 词：Dual-mode operation extended interaction oscillator(EIO) high-power radiation pseudospark-sourced(PS)electron beam sheet electron beam(SEB) TERAHERTZ 

分 类 号：TN752[电子电信—电路与系统]