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超宽带皮秒级脉冲发生器
引用本文:纪建华,费元春,周建明,郭德淳,赵琦. 超宽带皮秒级脉冲发生器[J]. 兵工学报, 2007, 28(10): 1243-1245
作者姓名:纪建华  费元春  周建明  郭德淳  赵琦
作者单位:北京理工大学,信息科学技术学院,北京,100081;北京理工大学,信息科学技术学院,北京,100081;北京理工大学,信息科学技术学院,北京,100081;北京理工大学,信息科学技术学院,北京,100081;北京理工大学,信息科学技术学院,北京,100081
摘    要:设计了一种超宽带高斯脉冲的脉冲发生器,此脉冲发生器主要由阶跃恢复二极管,FET管和肖特基二极管组成。其中阶跃恢复二极管和短路线用来产生脉冲,FET管用来进行脉冲的放大和脉冲产生、脉冲整形两部分电路间的隔离,肖特基二极管用来减小脉冲的振铃。利用ADS软件对阶跃恢复二极管进行建模,并用其进行脉冲发生器的设计仿真。测试结果表明,皮秒脉冲发生器的脉冲宽度为307 ps,幅度为1.88 V.该窄脉冲的波形对称,而且振铃小,实验结果与仿真结果吻合得很好。

关 键 词:电子技术  超宽带  皮秒级  高斯脉冲发生器  阶跃恢复二极管  spice模型
文章编号:1000-1093(2007)10-1243-03
修稿时间:2006-10-24

Ultra-wideband Subnanosecond Pulse Generator
JI Jian-hua,FEI Yuan-chun,ZHOU Jian-ming,GUO De-chun,ZHAO Qi. Ultra-wideband Subnanosecond Pulse Generator[J]. Acta Armamentarii, 2007, 28(10): 1243-1245
Authors:JI Jian-hua  FEI Yuan-chun  ZHOU Jian-ming  GUO De-chun  ZHAO Qi
Affiliation:School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Abstract:A new ultra-wideband( UWB) Gaussian pulse generator composed of a step recovery diode (SRD),a field-effect transistor (FET) and a Schottky diode was developed. A SRD and a short-cir?cuited transmission line are used to generate Gaussian pulse directly, a FE! is employed to amplify the pulse and isolate pulse generation and shaping network, a Schottky diode is used to suppress the pulse ringing. A SRD model, which is used to simulate the pulse generator, was established by an existing radiofrequency software ADS, and the pulse generator was designed and simulated by the model. The testing result shows that the generator can produce a 307 ps Gaussian pulse with 1.88 V peak-to-peak; the pulse has good symmetry and low ringing level. Good agreement between measured and simulated results was achieved.
Keywords:electron technology   ultra-wideband   subnanosecond   Gaussian pulse generator   step re-covery diode   spice model
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