Optimized Planar Spiral Coil Design for Efficient Wireless Power Transfer in Implantable Medical Devices †.
Saved in:
| Title: | Optimized Planar Spiral Coil Design for Efficient Wireless Power Transfer in Implantable Medical Devices †. |
|---|---|
| Authors: | Zhao, Weicheng1 (AUTHOR), Xie, Yufeng1 (AUTHOR), Chen, Zhiyuan1 (AUTHOR) chen_zy@fudan.edu.cn |
| Source: | Energies (19961073). Jul2026, Vol. 19 Issue 13, p3082. 17p. |
| Subjects: | Wireless power transmission, Artificial implants, Electromagnets, Magnetic flux density, Applied sciences, Radio frequency |
| Abstract: | This paper presents a five-coil array integrated wireless power transfer (WPT) system designed for implantable medical devices. The proposed structure features a collaborative design of driving and radiating coils, where each driving coil excites its corresponding radiating coil to emit power. All coil units are precisely tuned to operate at the 13.56 MHz ISM band. The unique array configuration generates a highly uniform magnetic field distribution within the target area, enabling excellent tolerance to lateral misalignment. System analysis based on scattering parameters (S-parameters) confirms the design's outstanding power transfer efficiency at the operating frequency. By integrating the five-coil array onto a double-layer printed circuit board, the system achieves the miniaturization and high integration level required for implantable applications. The experimental results demonstrate that the system reaches a maximum transfer efficiency of 55% under ideal alignment conditions (with a transfer distance of 10–20 mm). Notably, even with a lateral displacement of 5–10 mm at a 10 mm transfer distance, the system maintains stable performance, with efficiency consistently exceeding 50%. These results validate the system's capability for reliable and efficient wireless power delivery in clinical settings. [ABSTRACT FROM AUTHOR] |
| Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 195441208 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Optimized Planar Spiral Coil Design for Efficient Wireless Power Transfer in Implantable Medical Devices †. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhao%2C+Weicheng%22">Zhao, Weicheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Yufeng%22">Xie, Yufeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Zhiyuan%22">Chen, Zhiyuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chen_zy@fudan.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jul2026, Vol. 19 Issue 13, p3082. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Wireless+power+transmission%22">Wireless power transmission</searchLink><br /><searchLink fieldCode="DE" term="%22Artificial+implants%22">Artificial implants</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnets%22">Electromagnets</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+flux+density%22">Magnetic flux density</searchLink><br /><searchLink fieldCode="DE" term="%22Applied+sciences%22">Applied sciences</searchLink><br /><searchLink fieldCode="DE" term="%22Radio+frequency%22">Radio frequency</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper presents a five-coil array integrated wireless power transfer (WPT) system designed for implantable medical devices. The proposed structure features a collaborative design of driving and radiating coils, where each driving coil excites its corresponding radiating coil to emit power. All coil units are precisely tuned to operate at the 13.56 MHz ISM band. The unique array configuration generates a highly uniform magnetic field distribution within the target area, enabling excellent tolerance to lateral misalignment. System analysis based on scattering parameters (S-parameters) confirms the design's outstanding power transfer efficiency at the operating frequency. By integrating the five-coil array onto a double-layer printed circuit board, the system achieves the miniaturization and high integration level required for implantable applications. The experimental results demonstrate that the system reaches a maximum transfer efficiency of 55% under ideal alignment conditions (with a transfer distance of 10–20 mm). Notably, even with a lateral displacement of 5–10 mm at a 10 mm transfer distance, the system maintains stable performance, with efficiency consistently exceeding 50%. These results validate the system's capability for reliable and efficient wireless power delivery in clinical settings. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=195441208 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/en19133082 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 3082 Subjects: – SubjectFull: Wireless power transmission Type: general – SubjectFull: Artificial implants Type: general – SubjectFull: Electromagnets Type: general – SubjectFull: Magnetic flux density Type: general – SubjectFull: Applied sciences Type: general – SubjectFull: Radio frequency Type: general Titles: – TitleFull: Optimized Planar Spiral Coil Design for Efficient Wireless Power Transfer in Implantable Medical Devices †. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhao, Weicheng – PersonEntity: Name: NameFull: Xie, Yufeng – PersonEntity: Name: NameFull: Chen, Zhiyuan IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 19 – Type: issue Value: 13 Titles: – TitleFull: Energies (19961073) Type: main |
| ResultId | 1 |
