Improvement of a high-power microwave detector system is described. With new design of the DC voltage source, the problem that waveform will be distorted under long-width pulse over 200ns has been solved. The experiment results in which the detector is calibrated under different pulse widths are also given, and it is found that the detector sensitivity is stable when the pulse width varies from 20ns to 1μs. Finally, the application of the detector under repetitive pulses is given.%首先介绍了目前高功率微波探测器在测量宽脉冲情况下(400ns及以上)存在的问题,其次介绍了改进后的电源电路,解决了实验中出现的探测器在测量宽脉冲情况时脉冲顶部倾斜的问题,使得采集出的脉宽从20ns～1μs的信号波形不失真,并且介绍了对探测器在不同脉宽下分别进行标定的实验结果.实验结果表明,微波脉宽变化对探测器的灵敏度影响不大.同时进行了探测器的重复频率考核,实验结果表明探测器能够在100Hz、1s重频下稳定工作.最后介绍了探测器的应用情况.
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