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IR and Metasurface based mm-Wave Camera

Lundgren, Johan LU ; Gustafsson, Mats LU orcid ; Sjöberg, Daniel LU orcid and Nilsson, Martin LU (2021) In Applied Physics Letters 118.
Abstract
We have developed a technique to measure low-power electromagnetic fields from mm-wave devices non-intrusively by combining a metasurface, designed to absorb power and focus the radiated power in a thermally isolated region, with an infrared camera. The metasurface consists of thermally isolated elements of low mass and highly emissive material for maximal IR conversion of the incident wave. The IR camera captures the converted energy and indirectly images the incident electromagnetic field on the metasurface. The setup combines multi-scale, multi-physical processes to conduct measurements of the incident electromagnetic fields in real time. In this work, the technique is presented and discussed. Measurements are carried out to demonstrate... (More)
We have developed a technique to measure low-power electromagnetic fields from mm-wave devices non-intrusively by combining a metasurface, designed to absorb power and focus the radiated power in a thermally isolated region, with an infrared camera. The metasurface consists of thermally isolated elements of low mass and highly emissive material for maximal IR conversion of the incident wave. The IR camera captures the converted energy and indirectly images the incident electromagnetic field on the metasurface. The setup combines multi-scale, multi-physical processes to conduct measurements of the incident electromagnetic fields in real time. In this work, the technique is presented and discussed. Measurements are carried out to demonstrate the technique and image the electromagnetic field of a radiating device. The results compare well with simulations and the technique can measure the low power density levels of consumer devices, as well as provide a general visualization of electromagnetic fields in a live setting. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
118
article number
184104
pages
6 pages
publisher
American Institute of Physics (AIP)
external identifiers
  • scopus:85105597498
ISSN
0003-6951
DOI
10.1063/5.0047315
project
Optimal antenna synthesis
language
English
LU publication?
yes
id
2b09da75-2bad-4426-b7b5-77e55f9f1f40
date added to LUP
2021-04-14 10:56:59
date last changed
2022-04-27 01:30:49
@article{2b09da75-2bad-4426-b7b5-77e55f9f1f40,
  abstract     = {{We have developed a technique to measure low-power electromagnetic fields from mm-wave devices non-intrusively by combining a metasurface, designed to absorb power and focus the radiated power in a thermally isolated region, with an infrared camera. The metasurface consists of thermally isolated elements of low mass and highly emissive material for maximal IR conversion of the incident wave. The IR camera captures the converted energy and indirectly images the incident electromagnetic field on the metasurface. The setup combines multi-scale, multi-physical processes to conduct measurements of the incident electromagnetic fields in real time. In this work, the technique is presented and discussed. Measurements are carried out to demonstrate the technique and image the electromagnetic field of a radiating device. The results compare well with simulations and the technique can measure the low power density levels of consumer devices, as well as provide a general visualization of electromagnetic fields in a live setting.}},
  author       = {{Lundgren, Johan and Gustafsson, Mats and Sjöberg, Daniel and Nilsson, Martin}},
  issn         = {{0003-6951}},
  language     = {{eng}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Applied Physics Letters}},
  title        = {{IR and Metasurface based mm-Wave Camera}},
  url          = {{https://lup.lub.lu.se/search/files/96673406/TEAT_7271.pdf}},
  doi          = {{10.1063/5.0047315}},
  volume       = {{118}},
  year         = {{2021}},
}