一种超宽带、单周期窄脉冲产生技术

An ultra-wideband,monocycle ultra-short-pulse transmitter technique

对SRD(阶跃恢复二极管)的电特性进行了分析,提出了一种基于SRD、肖特基二极管和微带短路线产生超宽带、单周期脉冲的方法,分析了影响单周期脉冲的关键元件,并进行了软件仿真,针对此电路得到了这样的结论:应选择尽可能大的激励电流和适中的激励电感,经测试单周期窄脉冲的脉宽为400 ps,峰峰值为900 mV,该单周期脉冲适用于超宽带通信和超宽带雷达系统中.

A novel ultra-wideband, monocycle ultra-short-pulse transmitter was developed based on closed microstrip line, step-recovery and Schottky diode. The key elements in the circuit were discussed and the circuit was simulated with EDA software. The result shows that the strongest stimulating current and the appropriate inductance should be chosen. The transmitter generating monocycle pulses have the width of 400 ps and the peak-to-peak amplitude of 900 mV. The monocycle pulse can be widely used in UWB communication and UWB radar systems.