Gyrotrons on the cone-shaped waveguide

Abstract

The results of calculations for a nonlinear model of a tunable frequency gyrotron on a cone-shaped waveguide and the main TE 01 are presented in the article. It is shown that the adjustment range can reach 2.8%. For the waveguide that is expanding along the axis, the efficiency of the device is 21% at the operating frequency of 10 GHz. To achieve these parameters it is necessary to divide the gyrotron electromagnet into two parts - the main electromagnet and auxiliary one, which must move along the length of the waveguide. At a frequency of200 GHz, the wave efficiency is reduced to 15%, while the ohmic losses in the walls of the waveguide are 3% of the power of the electron beam. For waveguide narrowing along the length of the waveguide, the efficiency can reach 29% at a frequency of 200 GHz, and the ohmic losses in the walls of the copper waveguide amount to 4% of the power of the electron beam.