We show that during phase locking of the oscillations of a megawatt-level gyrotron by a relatively weak external monochromatic signal, the phase and frequency modulation of the gyrotron radiation due to the low-frequency fluctuations of the accelerating voltage and current decreases severalfold compared to the autonomous regime. The calculations were performed using the example of two megawatt-level gyrotrons, namely, a gyrotron developed at the Institute of Applied Physics of the Russian Academy of Sciences and operated at the TE_28,12 mode with a frequency of 170 GHz [1] and a gyrotron with twice as high frequency and operation-mode indices (345 GHz and TE_56,24), whose ability to generate a megawatt power in the case of frequency and phase locking by an external signal is shown theoretically [2].

我们表明，在兆瓦级回旋管的振荡被相对弱的外部单色信号锁相的过程中，由于加速电压和电流的低频波动，回旋管辐射的相位和频率调制比同步回旋的频率降低了几倍。自治制度。以两个兆瓦级回旋管为例进行了计算，该回旋管是在俄罗斯科学院应用物理研究所开发的回旋管，工作在TE _28,12模式下，频率为170 GHz [1]，并且高频和工作模式指数（345 GHz和TE _56,24的两倍）的回旋管），其在理论上显示了在通过外部信号进行频率和相位锁定的情况下产生兆瓦功率的能力[2]。