二次谐波回旋振荡管的互作用磁场比基波回旋振荡管的磁场降低了一半,从而降低了设计难度,具有广阔的应用前景。通过对单腔结构的W波段二次谐波回旋振荡管高频结构、起振电流、模式竞争以及注波互作用研究,确定了W波段TE02模二次谐波回旋振荡管的基本工作参数,通过粒子模拟(PIC)软件进行计算,在电子注电压为60kV,注电流为6A及速度比为1.5时,获得了67.5kW的输出功率和超过18%的效率,且工作稳定。 The harmonic field of the second harmonic gyro-oscillating tube is reduced by half compared with that of the fundamental gyro-oscillating tube, which reduces the design difficulty and has broad application prospect. Through the research on the high frequency structure, the starting current, the mode competition and the wave injection interaction of the W-band second harmonic gyro oscillating tube with single cavity structure, the basic working parameters of the W-band TE02 mode second harmonic gyrating tube are determined, Calculated with Particle Simulation (PIC) software, 67.5kW of output power and over 18% efficiency were achieved with an electron injection voltage of 60kV, a current injection of 6A, and a speed ratio of 1.5, with stable operation.