电子器件2013，Vol.36Issue(4)：572-575,4.DOI:10.3969/j.issn.1005-9490.2013.04.032
微弱信号检测电路PCB的电磁抗干扰仿真分析
Analysis of Electromagnetic Anti-Interference Simulation of the Weak Signal Detection Circuit's PCB
黄年龙 1吴明赞 1李竹1
作者信息
- 1. 南京理工大学自动化学院,南京210094
- 折叠
摘要
Abstract
Because of weak signal detection equipments' own characteristics,they are very sensitive to EMI (ElectroMagnetic Interference).The EMI sources of PCB and its anti-interference design method are analyzed.Then,the electromagnetic field of the PCB is analysed using Ansoft Designer and its near field plots at 50 MHz and 100 MHzobtained.Finally,layout and routes of PCB are adjusted according to the simulation results.After adjustment,the maximum value of electric field radiation and magnetic field radiation have been decreased by 55％ and 54％ respectively at 50 MHz,and electric field radiation and magnetic field radiation have been decreased by 55％ and 54％ respectively at 100 MHz.Thus the simulation is helpful for reducing the electromagnetic radiation and improving the anti-EMI ability of weak signal detection equipments.关键词
微弱信号检测/Ansoft Designer/电磁干扰/近场Key words
weak signal detection/Ansoft Designer/ electromagnetic interference/near field分类
数理科学引用本文复制引用
黄年龙,吴明赞,李竹..微弱信号检测电路PCB的电磁抗干扰仿真分析[J].电子器件,2013,36(4):572-575,4.
