高速高压超短脉冲在多个领域具有广泛的应用。利用传输线终端反射的原理和高速开关产生高速高压的超短脉冲信号是一种通用办法。然而,当脉冲信号加载到一个容性负载时,终端负载的不匹配会导致信号的反射。反射信号可能再次回到负载器件上,形成二次导通,并带来应用上缺陷。本文通过理论分析和仿真实验,提出了一些改进措施,可以有效抑制反射信号。
High speed high voltage ultrashort pulse has been widely used in many fields. Generating a high speed high voltage ultrashort pulse by making use of the theory of terminal reflection of transmission line and a high speed switch is a general method. However, when a pulse signal is applied to a capacitive load, the mismatching of terminal load leads to signal's reflection. The reflecting signal may come back to the load again and make it secondary conducted. It will bring some troubles in application.' Through theoretical analysis and simulation, we propose some improvement which can suppress the reflecting signal effectively.