高压纳秒电磁脉冲衰减器的研制

随着电磁脉冲技术的发展,电磁脉冲前沿越来越快,峰值越来越高。针对这些特点,为了减小高压纳秒电磁脉冲传输、衰减过程中电磁波的反射,在输出端得到理想的电磁脉冲波形,设计了一种高压纳秒电磁脉冲衰减器,采用高频电磁场仿真软件HFSS建模仿真,分析驻波比,优化结构尺寸。根据仿真及优化结果,制作了衰减量为30%和40%的衰减器样机。实验表明样机衰减量误差小,传输性能好,可对上升时间2ns左右,峰值小于40kV的电磁脉冲实现有效衰减。

Research of manufacturing high voltage nanosecond electromagnetic pulse attenuator

With the development of technology of electromagnetic pulse, the rising of electromagnetic pulse is more and more quickly,the peak is higher and higher, According to these characteristics, in order to reduce the reflex of high voltage nanosecond electromagnetic pulse in transmission and attenuation which can output the ideal electromagnetic pulse waveform, design of a high voltage nanosecond electromagnetic pulse attenuator, using high-frequency electromagnetic simulation software HFSS modeling, the size of the structure was optimized base on simulation, and got the simulation of VSWR （voltage standing wave ratio）. According to the simulation and structural optimization of results,making attenuation for 30% and 40% of the attenuator prototype. Experimental validation of a prototype performance good. ,deviation small,the attenuator had effective attenuation on the electromagnetic pulse which riseing time is about 2 ns, peak of pulse is less than 40 kV.