论文部分内容阅读
本文叙述一个特殊形式的三腔速调管放大器的原理和实验研究情况。该管以两端短路的慢波系统作为谐振腔。尽管其性能基本上与窄隙缝速调管的相似,但由于采用了分布作用的谐振腔且空腔的特性阻抗较高,因此其性能得到了一些改进。正如理论所预言的,用一个脉冲调制的S波段分布作用速调管进行实验,观察到了较高的效率和较大的增益频宽乘积。该管工作在最大注电压为22千伏及最大注电流为3.5安培的情况下。测量得到:在增益为18分贝时,半功率点之频宽为2%,饱和效率接近50%,而在0.5%的频宽时,小信号增益达40分贝。小信号特性完全符合空间电荷波理论。在大信号电平时,实验结果与简化的运动学理论定性一致。
This article describes a special form of three-cavity klystron amplifier principle and experimental research. The tube to the short-wave system at both ends as a resonant cavity. Although its performance is basically similar to that of narrow slot klystrons, its performance has been somewhat improved due to the distributed resonant cavity and the higher characteristic impedance of the cavity. As the theory predicts, experimenting with a pulsatile S-band distribution-acting klystron has been observed with higher efficiency and larger gain-bandwidth product. The tube works at a maximum injection voltage of 22 kV and a maximum injection current of 3.5 amps. The measurement results show that the half-power point has a bandwidth of 2% and a saturation efficiency of nearly 50% at a gain of 18 dB, while a small signal gain of 40 dB at a bandwidth of 0.5%. Small signal characteristics in full compliance with space charge wave theory. At large signal levels, the experimental results are qualitatively consistent with simplified kinematic theory.