| 一种新型三极管取样门电路设计 |
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| 引用本文： | 石国伟,肖 建,夏 天,郭宇锋,王 吉,程景清.一种新型三极管取样门电路设计[J].太赫兹科学与电子信息学报,2019,17(5):924-927. |
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| 作者姓名： | 石国伟 肖 建 夏 天 郭宇锋 王 吉 程景清 |
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| 作者单位： | a.College of Electronics Science and Engineering；b.National Local Joint Engineering Laboratory of Radio Frequency Integration and Micro Assembly Technology，Nanjing University of Posts and Telecommunications，Nanjing Jiangsu 210023，China,a.College of Electronics Science and Engineering；b.National Local Joint Engineering Laboratory of Radio Frequency Integration and Micro Assembly Technology，Nanjing University of Posts and Telecommunications，Nanjing Jiangsu 210023，China,a.College of Electronics Science and Engineering；b.National Local Joint Engineering Laboratory of Radio Frequency Integration and Micro Assembly Technology，Nanjing University of Posts and Telecommunications，Nanjing Jiangsu 210023，China,a.College of Electronics Science and Engineering；b.National Local Joint Engineering Laboratory of Radio Frequency Integration and Micro Assembly Technology，Nanjing University of Posts and Telecommunications，Nanjing Jiangsu 210023，China,a.College of Electronics Science and Engineering；b.National Local Joint Engineering Laboratory of Radio Frequency Integration and Micro Assembly Technology，Nanjing University of Posts and Telecommunications，Nanjing Jiangsu 210023，China and a.College of Electronics Science and Engineering；b.National Local Joint Engineering Laboratory of Radio Frequency Integration and Micro Assembly Technology，Nanjing University of Posts and Telecommunications，Nanjing Jiangsu 210023，China |
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| 基金项目： | 国家自然科学基金资助项目(61874059) |
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| 摘 要： | 超宽探地雷达在无损检测系统中应用越来越广泛，采样电路是整个无损系统设计的关键。基于等效采样原理设计出一款新的三极管取样门电路。该电路克服了现有二极管取样门电路的缺点，很好地实现采样保持。利用先进设计系统(ADS)软件对该取样门电路进行仿真，输入脉冲重复频率为10 MHz的2 ns三角波信号，采样时钟重复频率为10 MHz且与被采样信号有100 ps延时差。对其进行采样，经过该取样门电路后，输出信号为2 μs。在聚四氟乙烯板上实现该电路，利用信号发生器输入一个90 ns的正弦波作为被采样信号，采样时钟为100 ns，经过该取样门电路后，输出信号周期为1 μs。实测与理论结果都表明该电路可以降低输入信号的频率，实现利用低速A/D对高速信号的数据采集，大大降低了整个系统的成本。
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| 关 键 词： | 超宽带 探地雷达 等效采样 |
| 收稿时间： | 2018/2/1 0:00:00 |
| 修稿时间： | 2018/3/30 0:00:00 |
A novel design of triode sampling gate circuit |
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| SHI Guowei,XIAO Jian,XIA Tian,GUO Yufeng,WANG Ji and CHENG Jingqin.A novel design of triode sampling gate circuit[J].Journal of Terahertz Science and Electronic Information Technology,2019,17(5):924-927. |
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| Authors: | SHI Guowei XIAO Jian XIA Tian GUO Yufeng WANG Ji and CHENG Jingqin |
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