利用集中参数的电容和电感,设计了阻抗为20 Ω的Blumlein型脉冲形成网络。采用有限积分法,对两种不同连接结构的脉冲形成网络进行三维建模和仿真,模拟结果表明,设计的直线型连接结构的脉冲形成网络电压传递效率为98%,折叠型脉冲形成网络电压传递效率为90%。对两种不同连接结构的脉冲形成网络进行了高压实验,实验结果与理论模拟结果基本吻合。通过对两种不同连接结构脉冲形成网络耦合参数的计算,初步分析了导致能量传递效率不同的原因。

A Blumlein pulse forming network (PFN) with 20 Ω impedance was designed by using lumped parameter capacitance and inductance. The three-dimensional models of the pulse forming network in two different connecting configurations were established and simulated via finite integration software. The results show that, 98% voltage transfer efficiency of the PFN in linear connecting configuration can be achieved, and the voltage transfer efficiency of the PFN in folded connecting configuration is close to 90%. The high voltage experiments of the PFN in two different connecting configurations were done, and the experiment results were generally consistent with the theoretical simulation results. In the end, the reason for the difference of the voltage and power transfer efficiency was preliminarily analyzed by calculating the coupling parameter of the PFN in two different connecting configurations.