摘要
基于分布互作用速调管工作原理及注-波同步与耦合理论,结合耦合系数与电子电导计算,确定选择2π模为Ka波段分布互作用速调管的工作模式。由冷腔计算得到互作用电路的结构参数与电路参数,通过CST粒子工作室对整个互作用电路进行了PIC模拟计算。结果表明,在工作频率为35GHz,注电压为14k V,注电流为1A,输入功率为1.25W时,获得3.75k W的功率输出,增益达到34.77d B,效率为26.79%。
Based the mathematic and physical mechanisms of the beam-wave synchronization and coupling in an extended interaction klystron,the coupling coefficient and the beam conductance were calculated.Numerical simulation was done for a Ka-band extended interaction klystron operating in 2π mode by CST-PIC code.The results show the output power of 3.75 kW can be reached with the gain of 34.77 dB and the efficiency of 26.79% at the input power of 1.25 W and the frequency of 35 GHz,under the beam voltage and beam current is 14 kV and 1 A,respectively.
出处
《微波学报》
CSCD
北大核心
2015年第S2期107-110,共4页
Journal of Microwaves
基金
国家自然科学基金(11205162)
关键词
KA波段
分布作用速调管
注-波同步耦合
互作用电路
PIC模拟
Ka-band
extended interaction klystron
beam-wave synchronization and coupling
interaction circuit
PIC simulation
