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  4. A Compressive Sensing Framework for EMI Source Localization Using a Metalens Structure: Localization Beyond the Diffraction Limit
 
research article

A Compressive Sensing Framework for EMI Source Localization Using a Metalens Structure: Localization Beyond the Diffraction Limit

Azadifar, Mohammad  
•
Karami, Hamidreza  
•
Rachidi, Farhad  
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2022
IEEE Transactions on Electromagnetic Compatibility

In this article, we propose a novel approach for the localization of electromagnetic interference (EMI) sources based on the concept of compressive sensing and metalenses. We show that using the spatial and frequency dispersion offered by the metalens, we can create a scanning beam to provide an image of the current distribution in a printed circuit board. We deployed a computational imaging framework to extract the information in the observation plane of the imaging system and thus obtain the location of the EMI source. To use mode diversity offered by the metalens, we suggest using the compressive sensing platform. To the authors’ best knowledge, this is the first utilization of metalenses, computational imaging, and compressive sensing to locate EMI sources. Numerical simulation is used to implement and investigate the ability of the proposed approach to localized EMI sources. The obtained results show a very accurate localization skill. The proposed approach overcomes the diffraction limit and provides λ /17 superresolution. Moreover, the proposed approach uses a single stationary antenna to collect data and does not need either mechanical scanning, which is time consuming, or a beamforming array, which is expensive.

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Type
research article
DOI
10.1109/TEMC.2020.3041803
Author(s)
Azadifar, Mohammad  
Karami, Hamidreza  
Rachidi, Farhad  
Rubinstein, Marcos
Date Issued

2022

Published in
IEEE Transactions on Electromagnetic Compatibility
Volume

64

Issue

1

Start page

58

End page

65

Subjects

Electromagnetic interference

•

Imaging

•

Compressed sensing

•

Dipole antennas

•

Wires

•

Resonant frequency

•

Receiving antennas

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SCI-STI-FR  
Available on Infoscience
February 19, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/185586
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