Ⅰ.引言大功率脉冲微波管,使用大电流密度的收敛流电子枪。所要求的脉冲能量,是和脉冲电压的平方成正比变化,和脉冲重复率、并联输入电容成线性变化。因为大部分微波管利用阴极工作于脉冲状态作为电子注截止或通过的一种手段,能量转换使得脉冲调制器上承受大的负载。其重量和尺寸使其在某些应用方面受到 I. INTRODUCTION High power pulsed microwave tubes use convergent flow electron guns with high current density. The required pulse energy, which is proportional to the square of the pulse voltage, varies linearly with the pulse repetition rate and parallel input capacitance. Because most of the microwave tubes use the cathode to operate in a pulsed state as a means of stopping or passing the electrons, energy conversion places a large load on the pulse modulator. Its weight and size make it suitable for some applications