华南理工大学学报(自然科学版) ›› 2021, Vol. 49 ›› Issue (6): 131-140.doi: 10.12141/j.issn.1000-565X.200312

所属专题: 2021年电子、通信与自动控制

• 电子、通信与自动控制 • 上一篇    下一篇

应用于近场测量的超宽带有源磁场探头设计

陈志坚王雨晨黄鹏程邵伟恒2† 叶长青方文啸黄云2   

  1. 1.华南理工大学 电子与信息学院,广东 广州 510640;2.工业和信息化部电子第五研究所电子元器件可靠性物理及其应用技术重点实验室,广东 广州 510610
  • 收稿日期:2020-06-11 修回日期:2020-12-07 出版日期:2021-06-25 发布日期:2021-06-01
  • 通信作者: 邵伟恒(1989-),男,工程师,主要从事集成电路的电磁兼容性研究。 E-mail:shaoweiheng@126.com
  • 作者简介:陈志坚(1979-),男,高级工程师,主要从事模拟射频集成电路前端研究。E-mail:chenzhijian@scut.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(62001123);广东省重点领域研发计划项目(2020B010179002,2018B010142001);广东省自然科学基金资助项目(2018A030310360);华南理工大学中央高校基本科研业务费专项资金资助项目(2019XX16)

Design of Ultra-Wideband Active Magnetic Field Probe for Near-Field Measurement

CHEN ZhijianWANG YuchenHUANG PengchengSHAO Weiheng2 YE Changqing1 FANG Wenxiao2 HUANG Yun2#br#   

  1. 1. School of Electronic and Information Engineering, South China University of Technology,Guangzhou 510640,Guangdong,
    China; 2. Electronic Produce Reliability and Environmental Testing Research Institute, The Fifth Institute of Ministry of Industry and Information Technology, Guangzhou 510610, Guangdong, China
  • Received:2020-06-11 Revised:2020-12-07 Online:2021-06-25 Published:2021-06-01
  • Contact: 邵伟恒(1989-),男,工程师,主要从事集成电路的电磁兼容性研究。 E-mail:shaoweiheng@126.com
  • About author:陈志坚(1979-),男,高级工程师,主要从事模拟射频集成电路前端研究。E-mail:chenzhijian@scut.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(62001123),the Key Realm Research & Development Program of Guangdong Province(2020B010179002,2018B010142001)and the Natural Science Foundation of Guangdong Province(2018A030310360)

摘要: 针对目前有源探头的探测频率主要集中在低频段,难以满足高频段探测需求的问题,提出了一种小型、高带宽、非接触式的有源磁场探头。该有源磁场探头采用多层印刷电路版(PCB)制作,于无源探头的基础上,加入了有源放大器模块及其配套的电源管理芯片,对超宽带类型探头的传输增益进行提升;并从频率响应、空间分辨率、校准因子、差分电场抑制能力4个方面对探头进行了测试分析。结果表明:文中设计的探头的传输增益达到-20dB,空间分辨率达到900μm,有良好的差分电场抑制能力,该探头可用于超宽带下的PCB板与较复杂集成电路等场景的测量工作。

关键词: 有源磁场探头, 超宽带, 传输增益, 频率响应, 空间分辨率, 校准系数, 差分电场抑制能力

Abstract: The current active probe, whose detection frequency is mainly concentrated in the low frequency band, cant meet the detection requirements of the high frequency band. Therefore, a small, high-bandwidth, non-contact active magnetic field probe was proposed. The active magnetic field probe is made of a multilayer printed circuit board (PCB). An active amplifier module and its supporting power management chip were added to the passive probe to improve the transmission gain of the ultra-wideband type probe. The probe was tested and analyzed from four aspects: frequency response, spatial resolution, calibration factor, and differential electric field suppression capability. The results show that the designed probe has a transmission gain of -20dB, a spatial resolution of 900μm, and is of good differential electric field suppression. The probe can be used for ultra-wideband PCB board and more complex integrated circuit measurements.

Key words: active magnetic field probe, ultra-wideband, transmission gain, frequency response, spatial resolution, calibration factor, differential electric field suppression capability

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