PIC simulation of S-band tunable relativistic magnetron with axial diffraction output
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摘要: 研究了一种能同时实现S波段频率可调谐和微波轴向输出的相对论磁控管，该管采用10腔旭日型谐振腔结构和改进型轴向输出结构。利用高频场分析软件与粒子模拟软件，初步分析和优化了器件的工作性能。模拟结果表明：当电压为350 kV，磁场为0.3 T时，在20 %相对带宽（约700 MHz）内输出功率大于530 MW，功率转换效率大于20%，功率转换效率最高达到40.19%。Abstract: An S-band tunable relativistic magnetron with axial diffraction output, which contains the structure of 10-cavity rising-sun magnetron and the modified structure of axial diffraction output, is investigated. The softwares of high-frequency field analysis and particle simulation are used to analyze and optimize the operating performance of the device. Simulation results show that more than 530 MW output power and more than 20% power conversion efficiency can be obtained within 20% relative bandwidth (about 700 MHz). The maximum power conversion efficiency can reach 40.19%, with a operating voltage of 350 kV and a magnetic field of 0.3 T.
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