【作者】 刘青伦； 王自成； 刘濮鲲； 赵建东；

【Author】 Liu Qinglun~(1,2) Wang Zicheng~1 Liu Pukun~1 (1 Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China; 2 Graduate University of Chinese Academy of Sciences,Beijing 100039,China)

【机构】 中国科学院电子学研究所； 中国科学院研究生院；

【摘要】 本文采用双排矩形梳状慢波系统和一个圆形电子注通道作为W波段宽频带行波管的注波互作用回路。利用三维全电磁仿真软件CST对该慢波结构的色散特性、耦合阻抗等"冷"态参量进行了模拟、仿真和分析。研究表明,通过减小两排系统间的距离或电子注通道半径,可以达到提高耦合阻抗的目的。并利用MTSS大信号互作用程序对其进行了注波互作用研究,在50mW的功率的驱动下,饱和输出功率可达60.31W,增益为30.8dB。更多还原

【Abstract】 A double comb system with a round beam channel in the middle of the vane was proposed as the slow-wave structure of a wide-band traveling-wave tube at W-band.A three dimensional electromagnetic simulation software CST was used to simulating and analyzing the dispersion and interaction impedance character.Numerical simulations show that the interaction impedance is getting strong when decreasing the distance between the arrays or reducing the radius of the beam channel.Moreover,a large signal beam-wave program MTSS is also used to verify the validity and reliability of the double-comb structure.When the driver power of 50mW was input,the saturated output power was calculated to be 60.31W with a gain of 30.8dB.更多还原