We analyze theoretically millimeter-wave surface-wave generators based on relativistic ribbon electron beams within the framework of the averaged quasioptical model, as well as using direct numerical modeling by the Particle-in-Cell method. The regime of excitation of π modes and the regime of the backward-wave oscillator based on a surface wave are studied. The possibility to achieve generation of pulsed radiation at a frequency of 75 GHz with a power of up to 100 MW on the basis of the SINUKI acceleration (IAP RAS) is demonstrated. Experiments have been performed to test experimentally the formation of a relativistic ribbon electron beam with a particle energy of 600 keV, a current of up to 1 kA, and a width of up to 2 cm, which will be used to feed the developed generator.

我们在平均准光学模型的框架内，基于相对论带状电子束，对理论上的毫米波表面波发生器进行了分析，并通过“单元中粒子”方法使用了直接数值建模。研究了π模式的激励机制和基于表面波的后向振荡器的机制。证明了可以基于SINUKI加速度（IAP RAS）在75 GHz频率下产生功率高达100 MW的脉冲辐射的可能性。已经进行了实验以实验性地测试相对论的带状电子束的形成，该束带状电子束的粒子能量为600keV，电流最大为1kA，宽度最大为2cm，将用于馈给已开发的发生器。