This paper introduced a simulation for the CW magnetron which worked in the frequency of the C band.At the first step,we designed the parameters of an initial resonator cavity,then according to analyze the Eigen modes applied by CST simulation software,which built a 3D module of high-frequency structure,dynamic PIC simulation also have been discussed at the same time.On the basis of comparing to the different status of pre oscillation currents,we came to a conclusion that the diversities of cathode emis-sion states would importantly affect magnetrons'working conditions.Finally,we completed the works for making and testing to sample tubes so that we designed a C band CW magnetron which's output power is 1 kW,at the operating frequency of 5.8GHz,voltage of 6.3 kV,and corresponding to the anode currents of 0.3 A and a power conversion efficiency of 52.9%.
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