Tuning Characteristics Analysis of a Ka-band Coaxial Magnetron

In this paper, tuning characteristics of a Ka-band coaxial magnetron has been studied. The initial parameters of the coaxial cavity have been analyzed theoretically and verified by CST MW Studio. This paper summarizes some methods to optimize the parameters of coaxial cavity. Moreover, the characteristics of asymmetrical tuning is quantified by R/Q, quality-factor, the percentage of stored energy in coaxial cavity, as well as resonant frequency. It is simulated by CST MW Studio. Cold test is ongoing to verify the simulations.