Design of the 94GHz, TE62 Mode Generator Using Quasi-Optical Techniques

This paper details the core of the high-order TE62 mode generator components - the coaxial resonant cavity. In order to obtain high purity TE62 mode and improve the isolation among the modes, we use a cavity with an improved coaxial structure. The slowly variable section open coaxial cavity structure can make the TE62 mode well separated from its nearby modes. In this paper, the influence of the inner and outer radii of the coaxial cavity on the resonant frequency is presented. The TE62 mode purity of the cavity was calculated by the MATLAB program to be 95.3% and the result of the HFSS simulation after the optimization design of the W-band high-purity TE62 mode cavity is given, which is in close agreement with the ideal field distribution.