Design of a 220 GHz gyrotron oscillator

The design of a 15 kW, 220 GHz gyrotron operating in TE03 mode is presented according to the linear theory and the nonlinear self-consistent theory of gyrotrons. The gyrotron’s electron beam current is 2 A and its electron beam voltage is 20 kV. The results of the simulation using PIC code show that the efficiency of beam-wave interaction is as high as 37%.