The design of a W-band gyrotron traveling wave tube amplifier is presented. The device with a lossy ceramic interaction circuit operates in the fundamental harmonic TE01 circular electric mode. The 70-kV, 6-A electron beam is produced by a double anode magnetron injection gun with an average perpendicular-to-parallel velocity ratio of 1.2 and a parallel velocity spread of less than 3%. The beam-wave interaction is investigated by using a particle-in-cell code. The simulations predict that the amplifier can produce an output peak power of over 100 kW, 28% efficiency, 42 dB gain, and a 3 GHz bandwidth, respectively under the assumption of beam velocity spread 3%.

介绍了W波段回旋管行波管放大器的设计。带有有损陶瓷相互作用电路的器件在基波 TE01 循环电模式下运行。70-kV、6-A 电子束由双阳极磁控管喷射枪产生，平均垂直与平行速度比为 1.2，平行速度扩展小于 3%。束波相互作用是通过使用粒子在单元格代码来研究的。仿真预测，在光束速度扩展为 3% 的假设下，放大器可以分别产生超过 100 kW 的输出峰值功率、28% 的效率、42 dB 增益和 3 GHz 带宽。