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以电子回旋脉塞非线性理论为基础,结合三维电磁仿真软件,通过导入高频场数值解替代理论解析的方法,对波瓣波导谐振腔高次谐波太赫兹回旋管进行了理论和模拟研究.给出了该类回旋管的起振电流、耦合系数以及注波互作用效率等重要参数,并在此基础上设计了一只工作频率为0.4 THz,工作模式TE_(33)模三次谐波波瓣波导谐振腔回旋管,其电子注参数为1.0 A,40.5 kV,横纵速度比1.5,互作用区引导磁场为5.09 T,输出功率达到3.3 kW.
Based on the theory of electro-marshyromospheric pulse, combining with three-dimensional electromagnetic simulation software, theoretical and simulation studies of the lobe waveguide resonant-cavity high-order terahertz gyrotron are carried out by introducing the numerical solution of high-frequency field instead of theoretical analysis The important parameters of the gyro current, the coupling coefficient and the efficiency of the wave injection are given. On the basis of this, an operating frequency of 0.4 THz, TE 33 Mode Third Harmonic The wave guide resonator resonator has an electron injection parameter of 1.0 A at 40.5 kV and a lateral-to-longitudinal velocity ratio of 1.5. The guidance field in the interaction zone is 5.09 T and the output power reaches 3.3 kW.