两节反谐振式网络输出方波脉冲的参数计算

摘要

研究了反谐振式脉冲形成网络的紧凑化、小型化问题.介绍了两节反谐振式网络的组成和特点,并建立了相应的电路模型,运用电路的拉普拉斯变换和方波的傅里叶级数展开,通过波形拟合和参数对比的方法,找到了一种解决此类型电路输出方波脉冲的参数计算方法.模拟仿真结果显示:此网络输出的方波脉冲平顶约占整个脉冲时间的 1/4 且基本无抖动,前沿约占整个脉冲时间的 1/7,半高宽约占整个脉冲时间的 5/7.利用此方法设计了一套实验装置,并进行了初步的实验探究,实验结果表明:利用两节反谐振式网络可获得输出波形质量较好的百 ns级方波脉冲输出,与理论分析结果基本一致.%The compact and miniaturization properties are playing a considerably important role in the high power ns pulse forming network.The components and characteristics of a two-node anti-resonance pulse forming network which generates square pulses is introduced and the equivalent circuit of this network is obtained.A method for designing parameters of this type of cir-cuit is put forward by using the Laplace transform and the Fourier series expansion,and the corresponding simulation is carried out.The simulation results show that the flattop of the output pulse is about 1/4 of the whole pulse duration,while the rise time is about 1/7 and the pulse width is 5/7.Preliminary experimental investigation is studied and the results indicate that the two-node anti-resonance pulse forming network can generate ns square pulses which is in accord with the simulation results.