Radiation from a helically cut waveguide in TE62 mode

In modern high power gyrotrons, it´s possible for us to use high order volume modes for power output. Here we present a result of the radiation from a helically cut waveguide launcher using TE62, a so-called Vlasov launcher, working in 94GHz, which is calculated by CST studio. This is useful for the design and location of followed mirrors. This article includes the design of the Vlasov launcher of helically cut, and the far field radiation patterns.