| 研究課題/領域番号 |
22KF0292
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| 補助金の研究課題番号 |
21F51046 (2021-2022)
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| 研究種目 |
特別研究員奨励費
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| 配分区分 | 基金 (2023)
補助金 (2021-2022) |
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| 応募区分 | 外国 |
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| 審査区分 |
小区分21060:電子デバイスおよび電子機器関連
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| 研究機関 | 九州大学 |
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研究代表者 |
Pokharel R.K. 九州大学, システム情報科学研究院, 教授 (60398568)
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| 研究分担者 |
ALI MOHAMED 九州大学, システム情報科学研究院, 外国人特別研究員
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| 研究期間 (年度) |
2023-03-08 – 2024-03-31
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| 研究課題ステータス |
完了 (2023年度)
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| 配分額 *注記 |
2,200千円 (直接経費: 2,200千円)
2023年度: 400千円 (直接経費: 400千円)
2022年度: 600千円 (直接経費: 600千円)
2021年度: 1,200千円 (直接経費: 1,200千円)
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| キーワード | WPT system / hexagonal resonators / metamaterial / human phantom / Metamaterial / WPT / High Impedance Substrate |
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| 研究開始時の研究の概要 |
Wireless charging of biomedical implants will make the life of patients with implants much easier. However, it is associated with significant design challenges - efficiency degradation and the need to meet standards for exposure to electromagnetic fields. In this proposal, we will introduce a novel metamaterial and HIS to improve the performance of the WPT system.
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| 研究実績の概要 |
In FY 2023, a novel WPT system for biomedical implants was developed. The proposed system consists of symmetric Tx and Rx. Each is composed a square ring resonator and a hexagonal resonator. This approach enhances the coupled magnetic field, as well as isolates the driver/load resistances. The proposed structure employs stacked metamaterials (MTM) between the Tx and Rx, with a near-zero permeability property acting as a lens to focus the magnetic coupled field at the Rx. This results in a significant improvement in system efficiency and an increase in transmission distance. A human phantom model is then used to test the design characteristics inside the tissue. The proposed WPT system provides a PTE of 49% at a transfer distance of 20mm with an embedded depth of 10mm inside the human tissue.
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