中国物理B ›› 2009, Vol. 18 ›› Issue (12): 5507-5510.doi: 10.1088/1674-1056/18/12/063
刘頔威, 袁学松, 鄢扬, 刘盛纲
Liu Di-Wei(刘頔威)†,Yuan Xue-Song(袁学松), Yan Yang(鄢扬), and Liu Sheng-Gang(刘盛纲)
摘要: This paper analyses a three-cavity frequency-quadrupling terahertz gyroklystron with successive frequency-doubling in each cavity with self-consistent nonlinear theory. The beam--wave interaction efficiency and the electron bunching process are studied. The variation of output efficiency with the length of drift tubes and output power and the variation of Ohmic loss with the length of output cavity are considered. Numerical simulations predict an optimal output efficiency of 1.8%, a power output of more than 2~kW and a gain of 33~dB after taking into account Ohmic losses when the frequency-quadrupling gyroklystron, driven by a 40-kV, 3-A electron beam and 1 Watt input power, operates at 225~GHz.
中图分类号: (Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))