研究了L型连接结构对脉冲形成网络输出波形的影响。采用有限积分法，对L型连接结构的脉冲形成网络进行三维建模和仿真，并将其与直线型连接结构的脉冲形成网络仿真结果进行比较。结果表明：L型结构的脉冲形成网络前沿与直线型结构基本一致，约为40 ns，半高宽为168 ns，比直线型小7 ns，平顶处较直线型结构有所波动，表现为平顶后段幅度升高。通过对两种连接结构的脉冲形成网络进行高压实验，验证了仿真结果。在脉冲功率驱动源结构紧凑化的工程应用中，L型连接结构的输出波形能基本满足要求。

The influence of the pulse forming network (PFN) with Lstructure on the output waveform has been studied. The threedimensional model of the pulsed forming network with Lstructure has been established and simulated via finite integration software. The simulation results of the PFNs with two different structures have been compared. The pulse rise time of the PFN with Lstructure is about 40 ns, basically consistent with linear structure; the pulse halfhigh width is 168 ns, which is 7 ns smaller than that of the PFN with linear structure; the flattop of the output waveform fluctuates in comparison with linear structure, which features the flattop rise at the back part of the waveform. The simulation results have been verified by the high voltage experiment of the PFNs with two different structures. For the compact engineering applications of the pulse driver source system, the output waveform of the PFN with L structure could meet the requirements substantially.