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

被引：0
|
作者：
Chen Z. [1 ]
Wang Y. [1 ]
Huang P. [1 ]
Shao W. [2 ]
Ye C. [1 ]
Fang W. [2 ]
Huang Y. [2 ]
机构：
[1] School of Electronic and Information Engineering, South China University of Technology, Guangzhou
[2] Electronic Produce Reliability and Environmental Testing Research Institute, The Fifth Institute of Ministry of Industry and Information Technology, Guangzhou
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2021年 / 49卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Active magnetic field probe; Calibration factor; Differential electric field suppression capability; Frequency response; Spatial resolution; Transmission gain; Ultra-wideband;
D O I：
10.12141/j.issn.1000-565X.200312
中图分类号：
学科分类号：
摘要：
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. © 2021, Editorial Department, Journal of South China University of Technology. All right reserved.
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页码：131 / 140
页数：9
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