轴向分区双频磁绝缘线振荡器的数值模拟
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams(2011)
Abstract
为了便于模式变换器的设计,达到双频微波都能集中辐射的目的,提出一种轴向分区的双频磁绝缘线振荡器,该器件束波互作用区为中间隔开、两端不同周期、不同深度的慢波结构,使电子在上下游与不同频率特性的慢波结构进行束波互作用,得到稳定的双频微波输出.使用2.5维全电磁粒子模拟软件进行数值模拟,在工作电压450 kV,电流40 kA条件下输出微波功率为1.4 GW,功率效率约为7%,输出的微波频率分别为1.25 GHz和1.65 GHz,两者频谱幅度相差约为1.5 dB,模式为TEM模.
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Key words
Axial partition,Bifrequency,High power microwave,Magnetically insulated transmission line oscillator,Numerical simulation
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