本文利用CST软件中的粒子工作室对采用卷绕双梳齿慢波结构的圆极化行波管中的注-波互作用情况进行了粒子模拟研究,观察了电子束的运动情况,同时得到了电压、电流、磁场和输入功率四个重要电气参数对输出功率的影响。研究结果为圆极化行波管的设计奠定了理论基础。 In this paper, particle-based simulations of the injection-wave interaction in a circularly polarized TWT with a double-comb wound slow-wave structure are performed by using a particle studio in the CST software. The movement of the electron beam is observed and the The voltage, current, magnetic field and input power of four important electrical parameters of the output power. The research results have laid a theoretical foundation for the design of circularly polarized traveling wave tube.