Electrically‐Shielded Coil‐Enabled Battery‐Free Wireless Sensing for Underwater Environmental Monitoring
Abstract Battery‐free wireless sensing in extreme environments, such as conductive solutions, is crucial for long‐term, maintenance‐free monitoring, eliminating the limitations of battery power and enhancing durability in hard‐to‐reach areas. However, in such environments, the efficiency of wireless...
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| Format: | Article |
| Language: | English |
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Wiley
2025-04-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202414299 |
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| author | Ke Wu Xia Zhu Stephan W. Anderson Xin Zhang |
| author_facet | Ke Wu Xia Zhu Stephan W. Anderson Xin Zhang |
| author_sort | Ke Wu |
| collection | DOAJ |
| description | Abstract Battery‐free wireless sensing in extreme environments, such as conductive solutions, is crucial for long‐term, maintenance‐free monitoring, eliminating the limitations of battery power and enhancing durability in hard‐to‐reach areas. However, in such environments, the efficiency of wireless power transfer via radio frequecny (RF) energy harvesting is heavily compromised by signal attenuation and environmental interference, which degrade antenna quality factors and detune resonance frequencies. These limitations create substantial challenges in wirelessly powering miniaturized sensor nodes for underwater environmental monitoring. To overcome these challenges, electrically‐shielded coils with coaxially aligned dual‐layer conductors are introduced that confine the electric field within the coil's inner capacitance. This configuration mitigates electric field interaction with the surrounding medium, making the coils ideal for use as near‐field antennas in aquatic applications. Leveraging these electrically‐shielded coils, a metamaterial‐enhanced reader antenna was developed and a 3‐axis sensor antenna for an near‐field communication (NFC)‐based system. The system demonstrated improved spectral stability, preserving resonance frequency and maintaining a high‐quality factor. This advancement enabled the creation of a battery‐free wireless sensing platform for real‐time environmental monitoring in underwater environments, even in highly conductive saltwater with salinity levels of up to 3.5%. |
| format | Article |
| id | doaj-art-39b80b878f874a24bdcb73f44e49bf41 |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-39b80b878f874a24bdcb73f44e49bf412025-08-20T03:09:08ZengWileyAdvanced Science2198-38442025-04-011214n/an/a10.1002/advs.202414299Electrically‐Shielded Coil‐Enabled Battery‐Free Wireless Sensing for Underwater Environmental MonitoringKe Wu0Xia Zhu1Stephan W. Anderson2Xin Zhang3Department of Mechanical Engineering Boston University Boston MA 02215 USADepartment of Mechanical Engineering Boston University Boston MA 02215 USAPhotonics Center Boston University Boston MA 02215 USADepartment of Mechanical Engineering Boston University Boston MA 02215 USAAbstract Battery‐free wireless sensing in extreme environments, such as conductive solutions, is crucial for long‐term, maintenance‐free monitoring, eliminating the limitations of battery power and enhancing durability in hard‐to‐reach areas. However, in such environments, the efficiency of wireless power transfer via radio frequecny (RF) energy harvesting is heavily compromised by signal attenuation and environmental interference, which degrade antenna quality factors and detune resonance frequencies. These limitations create substantial challenges in wirelessly powering miniaturized sensor nodes for underwater environmental monitoring. To overcome these challenges, electrically‐shielded coils with coaxially aligned dual‐layer conductors are introduced that confine the electric field within the coil's inner capacitance. This configuration mitigates electric field interaction with the surrounding medium, making the coils ideal for use as near‐field antennas in aquatic applications. Leveraging these electrically‐shielded coils, a metamaterial‐enhanced reader antenna was developed and a 3‐axis sensor antenna for an near‐field communication (NFC)‐based system. The system demonstrated improved spectral stability, preserving resonance frequency and maintaining a high‐quality factor. This advancement enabled the creation of a battery‐free wireless sensing platform for real‐time environmental monitoring in underwater environments, even in highly conductive saltwater with salinity levels of up to 3.5%.https://doi.org/10.1002/advs.202414299battery‐freeelectrically‐shielded coilnear‐field antennaunderwater environmental monitoringwireless sensing |
| spellingShingle | Ke Wu Xia Zhu Stephan W. Anderson Xin Zhang Electrically‐Shielded Coil‐Enabled Battery‐Free Wireless Sensing for Underwater Environmental Monitoring Advanced Science battery‐free electrically‐shielded coil near‐field antenna underwater environmental monitoring wireless sensing |
| title | Electrically‐Shielded Coil‐Enabled Battery‐Free Wireless Sensing for Underwater Environmental Monitoring |
| title_full | Electrically‐Shielded Coil‐Enabled Battery‐Free Wireless Sensing for Underwater Environmental Monitoring |
| title_fullStr | Electrically‐Shielded Coil‐Enabled Battery‐Free Wireless Sensing for Underwater Environmental Monitoring |
| title_full_unstemmed | Electrically‐Shielded Coil‐Enabled Battery‐Free Wireless Sensing for Underwater Environmental Monitoring |
| title_short | Electrically‐Shielded Coil‐Enabled Battery‐Free Wireless Sensing for Underwater Environmental Monitoring |
| title_sort | electrically shielded coil enabled battery free wireless sensing for underwater environmental monitoring |
| topic | battery‐free electrically‐shielded coil near‐field antenna underwater environmental monitoring wireless sensing |
| url | https://doi.org/10.1002/advs.202414299 |
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