Using a new kind of folded waveguide (FWG) with modified circular bends and two-stage depressed collector, we have designed a W-band-pulsed traveling wave tube (TWT) operating at substantially lowered-voltage with high power and efficiency. A prototype tube has been tested at voltage of 15.66 kV and 30% duty cycle, showing output power over 180 W and gain over 36 dB in 91-97-GHz frequency range. The electronic and overall efficiency are above 7.8% and 29%, respectively, within the bandwidth of 6 GHz. The packaged TWT has outer dimensions of 270×49×46 mm3 and weighs less than 1.5 kg.

中文翻译：

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大幅降低电压的大功率W波段脉冲行波管


使用具有改进的圆形弯曲和两级凹陷集电极的新型折叠波导（FWG），我们设计了一种在大幅降低的电压下工作的W波段脉冲行波管（TWT），具有高功率和高效率。原型管已在 15.66 kV 电压和 30% 占空比下进行测试，显示输出功率超过 180 W，在 91-97 GHz 频率范围内增益超过 36 dB。在 6 GHz 带宽内，电子效率和整体效率分别高于 7.8% 和 29%。封装后的TWT外形尺寸为270×49×46 mm3，重量不到1.5 kg。