X波段三重轴相对论速调管放大器的设计

摘要

In this paper,we analyze the interaction between electron beam and microwave in the coaxial cavity,and obtain the coupling coefficient of the coaxial cavity and the electronic load conductance.The X-band tri-axial relativistic klystron amplifier is designed and simulated.Simulation results show that coaxial cavity can increase the efficiency.With an input microwave power of 70 kW,electron beam voltage of 600 kV,and electron beam of 5 kA,we obtain a microwave with a power of 1.1 GW,frequency of 9.37 GHz,and an efficiency of 37%.%分析了同轴腔体间隙束流与电场的相互作用,推导了同轴腔体间隙的耦合系数和电子负载电导,并设计了104W级注入微波驱动的X波段三重轴相对论速调管放大器,产生了GW级的微波功率输出.通过三维粒子模拟,设计了工作频率为9.37GHz的三重轴相对论速调管放大器,在注入微波功率为70kW、束压为600kV、束流为5kA的条件下,获得的输出微波功率达到1.1GW,效率为37%,增益为42dB.