Numerical Analysis on Design of a New Type Power Time-domain Pulse Compression Circuit Topology

Ultra-wideband (UWB) high power microwave (HPM) causes irreversible damage to the industrial and civil equipments. Therefore, it is necessary to establish an UWB high power electromagnetic pulse radiation source for studying radiation damage mechanism. Note that time-domain pulse compression is an important technological approach to generate the UWB high power electromagnetic pulse, therefore which has received extensive attention at home and abroad. In this paper, firstly, the basic working principle of time-domain pulse compression is introduced briefly, the voltage waveform parameters of compressed pulse, the power gain and the energy conversion efficiency are deduced. Then, a novel time-domain impedance transformation and pulse compression circuit topology is proposed, and the power transmission efficiency of variable-impedance transmission line (VITL), the pulse compression efficiency and the total power gain of this circuit topology are numerical analyzed. Finally, the key design parameters of time-domain pulse compression circuit are given. The research work provides the theory support for the design of the UWB high power electromagnetic pulse radiation system.