A Ku-band Compact High-power Sheet Beam Extended Interaction Oscillator

A compact sheet beam extended interaction oscillator (SBEIO) with frequency of 13.986 GHz is proposed in this paper. The model adopts a ladder structure with six gaps and operates in the TM11-2π mode. By optimizing the structure through the MATLAB program of the nonlinear theoretical simulation designed in our group, the efficiency is increased from 23.6% to 32.1%. The voltage and current of the electron beam are respectively 45 kV, 14 A. The current density remains at 50 A/cm
²
, which is suitable for the application of the periodic permanent magnet and beneficial for compact overall structure. The output power reaches 157 KW.