| 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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