Simulation Study for the Vircator with three cathodes ring

고출력 마이크로파 발생장치인 링형태의 세 개의 캐소드를 가전 버카터의 시뮤레이션 연구

Using the "MAGIC" code, computer simulation is performed to design a cathode structure which provides a radial distribution of electron beam density matching the field distribution of the $TM_{05}$ mode. Thus, very narrow band $TM_{05}$ mode microwave radiation can be generated in an open end waveguide. The simulation results show that the vircator can indeed be operated at the selected frequency 10.2GHz with a very narrow bandwidth(${\Delta}{\omega}/{\omega}$ < 1%).