Model and Simulation of a New Ultra-Narrow Trigger Frequency Alterable Pulse Generator  

作　　者：杨运峰 曹振新 叶展 窦文斌 苏宏艳 

机构地区：[1]State Key Laboratory of Millimeter Waves,Southeast University [2]National Key Laboratory of Millimeter Wave System

出　　处：《Journal of Shanghai Jiaotong university(Science)》2011年第6期687-690,共4页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China (No.60970058);the Natural Science Foundation of Jiangsu Province (No.SBK200930425);the fund of the State Key Laboratory of Millimetre Waves of Southeast University;the Student Research Training Program (SRTP) of Southeast University

摘　　要：Two new kinds of ultra-narrow trigger frequency alterable picosecond pulse generator are presented.One can produce positive pulses and the other can produce negative pulses.The two pulse generators are subdivided into three parts:signal driving circuit,differentiator network and pulse shaping circuit.The pulse shaping circuit is made of step recovery diode(SRD) and short-circuit microstrip line.A positive pulse with width of 54 ps(50%-50%),rising time of 30 ps(10%-90%) and falling time of 32 ps(90%-10%),and a negative pulse with width of 54 ps(50%-50%),rising time of 30 ps(90%-10%) and falling time of 30 ps(10%-90%) are achieved in simulation.All of the components are ready-made and inexpensive.They can be applied in ultra-wideband(UWB) communication system,such as transmitters and receivers.Two new kinds of ultra-narrow trigger frequency alterable picosecond pulse generator are presented. One can produce positive pulses and the other can produce negative pulses. The two pulse generators are subdivided into three parts： signal driving circuit, differentiator network and pulse shaping circuit. The pulse shaping circuit is made of step recovery diode （SRD） and short-circuit microstrip line. A positive pulse with width of 54 ps （50%--50%）, rising time of 30ps （10%--90%） and falling time of 32ps （90%--10%）, and a negative pulse with width of 54 ps （50%--50%）, rising time of 30 ps （90%--10%） and falling time of 30 ps （10%--90%） are achieved in simulation. All of the components are ready-made and inexpensive. They can be applied in ultra-wideband （UWB） communication system, such as transmitters and receivers.

关 键 词：pulse generator ultra-narrow step recovery diode(SRD) pulse shaping circuit 

分 类 号：TN92[电子电信—通信与信息系统]