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Academic Journal of Computing & Information Science, 2024, 7(1); doi: 10.25236/AJCIS.2024.070104.

Comparison of Two Differential Magnetic-field Probes in Sensitivity


Duan Nie1, Wenyuan Liu1, Ruiqi Wang1, Lei Wang2

Corresponding Author:
Lei Wang

1School of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an, China

2Science and Technology on Reliability Physics and Application of Electronic Component Laboratory, CEPREI, Guangzhou, China


As the key element in near-field scanning, electromagnetic probes can locate and diagnose radiation from devices efficiently. To further improve measurement accuracy, different types of probes have been designed to improve performance in terms of bandwidth, spatial resolution, and sensitivity. In this paper, two differential magnetic field probes are designed to enhance sensitivity for near-field scanning. The first probe has a simple U-shaped loop in the detection part. Based on the U-shaped loop as a driven element, the second probe incorporates two identical U-shaped loops as parasitic elements in the detection part to enhance the sensitivity, and the driven loop and two parasitic loops are connected by connected vias separately. The simulated results show that the second differential probe has a higher sensitivity in contrast to the first one.


Differential probe, Magnetic field, Performance comparison

Cite This Paper

Duan Nie, Wenyuan Liu, Ruiqi Wang, Lei Wang. Comparison of Two Differential Magnetic-field Probes in Sensitivity. Academic Journal of Computing & Information Science (2024), Vol. 7, Issue 1: 24-27. https://doi.org/10.25236/AJCIS.2024.070104.


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