Design and Experiment of TE62 Quasi-optical Mode Generator for a W-band Gyrotron Oscillator

In this paper, a W-band rotating TE
₆₂
mode is obtained by means of a quasi-optical mode generator in order to test quasi-optical system of the gyrotrons. The quasi-optical generator consists of two mirrors and a coaxial cavity with a perforated outer wall. The simulation results with an electromagnetic analyses software show that the mode purity is up to 96.5%. Processing technologies for components of the mode generator are finished. The assembly device is finished on the basis of the multidimensional localization, which has been tested on the multidimensional automatic test platform.