高效层叠平行板Blumlein脉冲产生器性能分析

采用时空图和矩量法对单和多平行板Blumlein脉冲产生器的输出特性作了详细分析.数值计算表明, 为了获得良好的系统输出,开关的导通电阻必须尽可能小；为了获得最大的能量输出或最大的电压输出,所需采用的匹配负载电阻不同；多Blumlein层叠结构的电压匹配负载电阻可以通过单Blumlein的电压匹配负载来估计,而能量匹配负载电阻不能直接根据单Blumlein的能量匹配负载电阻来估算；Blumlein传输线的板间距与板宽之比决定了系统的电压匹配负载和能量匹配负载的大小,并显著影响匹配条件下的电压倍增因子和能量输出效率.

An Analysis of the Performance of Stacked Parallel-Plate Blumlein Pulse Generators

The performance of single and stacked parallel-plate Blumlein pulse generators have been analyzed by combining the space-time diagram and the moments method.The numerical results show that the on-state resistance of the switch should be as small as possible in order to get a good performance of the system. The matched loads of a Blumlein pulse generator for maximum energy output or for the maximum voltage output are different.The voltage matched load of stacked Blumleins can be well estimated from the one of a single Blumlein, but the energy matched load extrapolated from the single Blumlein is overestimated.It is also shown that the ratio of the spacing of the three conductor plates to the width of the plates determines the voltage matched load and the energy matched load, and influences the voltage multiplication factor and the efficiency of energy output.