Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants
This paper presents an anti-symmetric wing transmitter (ASW-Tx) for angular misalignment insensitive WPT to biomedical implants. Symmetrical field distribution on two orthogonal planes of <inline-formula> <tex-math notation="LaTeX">$Oxz$ </tex-math></inline-formula>...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10070772/ |
| _version_ | 1797856465091821568 |
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| author | Hoang Le-Huu Chulhun Seo |
| author_facet | Hoang Le-Huu Chulhun Seo |
| author_sort | Hoang Le-Huu |
| collection | DOAJ |
| description | This paper presents an anti-symmetric wing transmitter (ASW-Tx) for angular misalignment insensitive WPT to biomedical implants. Symmetrical field distribution on two orthogonal planes of <inline-formula> <tex-math notation="LaTeX">$Oxz$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$Oyz$ </tex-math></inline-formula> are analyzed theoretically to obtain stable power transfer efficiency (PTE) by rotating Rx around the <inline-formula> <tex-math notation="LaTeX">$Oz$ </tex-math></inline-formula> axis. Moreover, toroidal magnetic fluxes are generated by ASW to adapt with different Rx’s tilted angles on <inline-formula> <tex-math notation="LaTeX">$Ox$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$Oy$ </tex-math></inline-formula> axes. An impedance matching network (IMN) is proposed and implemented to match ASW-Tx’s impedance to source impedance. An implantable Rx is employed to verify the ASW-Tx’s performance. Experimental measurements are carried out with selected Rx’s tilted angles (vary from <inline-formula> <tex-math notation="LaTeX">$0^{o}$ </tex-math></inline-formula> to <inline-formula> <tex-math notation="LaTeX">$90^{o}$ </tex-math></inline-formula> around <inline-formula> <tex-math notation="LaTeX">$Ox$ </tex-math></inline-formula>, <inline-formula> <tex-math notation="LaTeX">$Oy$ </tex-math></inline-formula>, and <inline-formula> <tex-math notation="LaTeX">$Oz$ </tex-math></inline-formula> axis) to validate the effectiveness of proposed ASW-Tx’s. Verification results show that a stable efficiency variation was achieved with a maximum fluctuation of 4 dB by rotating Rx tilted angles. Moreover, the ASW-Tx can supply power effectively with a transmission efficiency of up to -18.4 dB to an implantation depth of 15 mm. |
| first_indexed | 2024-04-09T20:40:53Z |
| format | Article |
| id | doaj.art-1ce4ca5be4ae48099ab6ecaaaf5f45a4 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-09T20:40:53Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-1ce4ca5be4ae48099ab6ecaaaf5f45a42023-03-29T23:00:12ZengIEEEIEEE Access2169-35362023-01-0111263752638210.1109/ACCESS.2023.325734310070772Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical ImplantsHoang Le-Huu0https://orcid.org/0000-0002-2460-6491Chulhun Seo1https://orcid.org/0000-0002-6765-8734Department of Information and Communication Convergence, Soongsil University, Seoul, Dongjak-gu, South KoreaDepartment of Information and Communication Convergence, Soongsil University, Seoul, Dongjak-gu, South KoreaThis paper presents an anti-symmetric wing transmitter (ASW-Tx) for angular misalignment insensitive WPT to biomedical implants. Symmetrical field distribution on two orthogonal planes of <inline-formula> <tex-math notation="LaTeX">$Oxz$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$Oyz$ </tex-math></inline-formula> are analyzed theoretically to obtain stable power transfer efficiency (PTE) by rotating Rx around the <inline-formula> <tex-math notation="LaTeX">$Oz$ </tex-math></inline-formula> axis. Moreover, toroidal magnetic fluxes are generated by ASW to adapt with different Rx’s tilted angles on <inline-formula> <tex-math notation="LaTeX">$Ox$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$Oy$ </tex-math></inline-formula> axes. An impedance matching network (IMN) is proposed and implemented to match ASW-Tx’s impedance to source impedance. An implantable Rx is employed to verify the ASW-Tx’s performance. Experimental measurements are carried out with selected Rx’s tilted angles (vary from <inline-formula> <tex-math notation="LaTeX">$0^{o}$ </tex-math></inline-formula> to <inline-formula> <tex-math notation="LaTeX">$90^{o}$ </tex-math></inline-formula> around <inline-formula> <tex-math notation="LaTeX">$Ox$ </tex-math></inline-formula>, <inline-formula> <tex-math notation="LaTeX">$Oy$ </tex-math></inline-formula>, and <inline-formula> <tex-math notation="LaTeX">$Oz$ </tex-math></inline-formula> axis) to validate the effectiveness of proposed ASW-Tx’s. Verification results show that a stable efficiency variation was achieved with a maximum fluctuation of 4 dB by rotating Rx tilted angles. Moreover, the ASW-Tx can supply power effectively with a transmission efficiency of up to -18.4 dB to an implantation depth of 15 mm.https://ieeexplore.ieee.org/document/10070772/Anti-symmetric wing transmitter (ASW-Tx)biomedical implantsimpedance matching network (IMN)misalignment tolerancewireless power transfer (WPT) |
| spellingShingle | Hoang Le-Huu Chulhun Seo Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants IEEE Access Anti-symmetric wing transmitter (ASW-Tx) biomedical implants impedance matching network (IMN) misalignment tolerance wireless power transfer (WPT) |
| title | Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants |
| title_full | Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants |
| title_fullStr | Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants |
| title_full_unstemmed | Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants |
| title_short | Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants |
| title_sort | anti symmetric wing transmitter for angular misalignment insensitive wireless power transfer to biomedical implants |
| topic | Anti-symmetric wing transmitter (ASW-Tx) biomedical implants impedance matching network (IMN) misalignment tolerance wireless power transfer (WPT) |
| url | https://ieeexplore.ieee.org/document/10070772/ |
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