高功率可变脉宽辐射系统北大核心CSCD

介绍了一种应用在高功率VHF频段可变脉冲产生及辐射系统的组成。在实验室条件下,通过优化设计、调节实现了数ns至数十ns脉冲宽度辐射输出。利用开路容性天线加载可调电感原理,达到辐射脉冲宽度可变的目的,同时通过并联引入耗能大电感,实现减少辐射脉冲拖尾,增加系统效率的功能;并利用高能量、快脉冲电源为种子电源,为放电回路进行储能放电,利用这一体制减小了系统辐射脉冲间的同步抖动。

High-power variable electromagnet impulse radiation system

A variable pulse generation and radiation system working at high-power very high frequency(VHF) band was investigated. Based on optimization, radiation output with pulse width between several nanoseconds and tens of nanoseconds was obtained under laboratory conditions. To realize the adjustability of the pulse width, the open-circuit capacitive antenna was loaded with a variable inductor. By introducing the large inductor in parallel, little pulse tail and high efficiency are also achieved. Besides, high-power and short-pulsed source was applied in discharge circuit for energy storage and discharge, which reduced the synchronization jitter between the radiation pulses.