摘要:
全固态快沿脉冲源具有小型化、高稳定性、高重复频率、输出功率低等特点,为了克服单个脉冲源输出功率低的问题,利用ADS仿真软件建立了多节蛇形微带线结构的功率合成器,并用实验验证了功率合成的效果。利用两路高稳定度的脉冲子源作为功率合成的两路输入,通过该功率合成器使两路快沿双指数信号合成为一路快沿双指数信号,实现了功率的提高。实验中脉冲子源的幅度为1.1 kV, 前沿约为2 ns,脉冲宽度为10 ns；两路信号合成后,输出电压为1.6 kV, 前沿约为2 ns,脉冲宽度为18 ns。实验验证了该功率合成模块的可行性,该合成模块还可推广至多路的脉冲子源的功率合成,实现提高快沿双指数脉冲功率的目的。
Abstract:
All-solid-state pulse source with fast-edge requires the feature of miniature, high stability, high repeatability and low power. In order to overcome low power of each pulser, the power synthesis with multi-pitch serpentine microstrip structure is established using ADS simulation software, the effect of power synthesis is confirmed. Using two high stability pulsers as the input of power synthesis module, the module can combine the two low power fast edge dual-exponential signals into one higher power signal. The test results show that the pulser can produce electromagnetic pulse with less than 2 ns falling time of negative pulse, about 10 ns pulse width and 1.1 kV peak voltage; after the two-signal synthesis, the module can produce pulse with 1.6 kV peak voltage, 2 ns falling time and 18 ns pulse width. The method can be extended to multi-pulser synthesis to obtain higher power.
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