Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage
Wireless power transfer is a breakthrough technology which can be used in all aspects of humans daily life. Here, a bi-layer metasurface as a transmitter for near-field wireless power transfer is proposed and studied. The novelty and advantage of the proposed metasurface is the spatial separation of...
| Main Authors: | , , , , , |
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| Format: | Article |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9016032/ |
| _version_ | 1818579610230587392 |
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| author | Aleksandr Markvart Mingzhao Song Stanislav Glybovski Pavel Belov Constantin Simovski Polina Kapitanova |
| author_facet | Aleksandr Markvart Mingzhao Song Stanislav Glybovski Pavel Belov Constantin Simovski Polina Kapitanova |
| author_sort | Aleksandr Markvart |
| collection | DOAJ |
| description | Wireless power transfer is a breakthrough technology which can be used in all aspects of humans daily life. Here, a bi-layer metasurface as a transmitter for near-field wireless power transfer is proposed and studied. The novelty and advantage of the proposed metasurface is the spatial separation of the electric and magnetic near fields. Magnetic fields responsible for power transfer are sufficiently high on top of the metasurface whereas the electric fields are almost completely confined between two layers of the metasurface. These unique properties have been obtained due to the special metasurface design based on two orthogonal layers of resonant wires immersed in high-permittivity background. The theoretical and experimental study reveal the quasi-uniform magnetic field distribution over the metasurface dimensions of 40×40 cm<sup>2</sup> that makes it suitable for wireless power transfer via resonant magnetic coupling to one or several receivers placed above it. Compared with a conventional planar spiral coil solution, the specific absorption rate of the proposed metasurface is reduced by 47 times, which enables to greatly increase the allowable transferred power without violating the safety regulation and reducing the efficiency. |
| first_indexed | 2024-12-16T07:04:26Z |
| format | Article |
| id | doaj.art-be962876dfaa4e788aa3cd3961b888cb |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T07:04:26Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-be962876dfaa4e788aa3cd3961b888cb2022-12-21T22:40:05ZengIEEEIEEE Access2169-35362020-01-018402244023110.1109/ACCESS.2020.29767559016032Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field LeakageAleksandr Markvart0Mingzhao Song1https://orcid.org/0000-0002-1264-4335Stanislav Glybovski2Pavel Belov3Constantin Simovski4https://orcid.org/0000-0003-4338-4713Polina Kapitanova5Faculty of Physics and Engineering, ITMO University, St. Petersburg, RussiaFaculty of Physics and Engineering, ITMO University, St. Petersburg, RussiaFaculty of Physics and Engineering, ITMO University, St. Petersburg, RussiaFaculty of Physics and Engineering, ITMO University, St. Petersburg, RussiaFaculty of Physics and Engineering, ITMO University, St. Petersburg, RussiaFaculty of Physics and Engineering, ITMO University, St. Petersburg, RussiaWireless power transfer is a breakthrough technology which can be used in all aspects of humans daily life. Here, a bi-layer metasurface as a transmitter for near-field wireless power transfer is proposed and studied. The novelty and advantage of the proposed metasurface is the spatial separation of the electric and magnetic near fields. Magnetic fields responsible for power transfer are sufficiently high on top of the metasurface whereas the electric fields are almost completely confined between two layers of the metasurface. These unique properties have been obtained due to the special metasurface design based on two orthogonal layers of resonant wires immersed in high-permittivity background. The theoretical and experimental study reveal the quasi-uniform magnetic field distribution over the metasurface dimensions of 40×40 cm<sup>2</sup> that makes it suitable for wireless power transfer via resonant magnetic coupling to one or several receivers placed above it. Compared with a conventional planar spiral coil solution, the specific absorption rate of the proposed metasurface is reduced by 47 times, which enables to greatly increase the allowable transferred power without violating the safety regulation and reducing the efficiency.https://ieeexplore.ieee.org/document/9016032/Metasurfaceelectromagnetic safetywireless power transfer |
| spellingShingle | Aleksandr Markvart Mingzhao Song Stanislav Glybovski Pavel Belov Constantin Simovski Polina Kapitanova Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage IEEE Access Metasurface electromagnetic safety wireless power transfer |
| title | Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage |
| title_full | Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage |
| title_fullStr | Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage |
| title_full_unstemmed | Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage |
| title_short | Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage |
| title_sort | metasurface for near field wireless power transfer with reduced electric field leakage |
| topic | Metasurface electromagnetic safety wireless power transfer |
| url | https://ieeexplore.ieee.org/document/9016032/ |
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