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| Content Provider | IET Digital Library |
|---|---|
| Author | Shaw, Tarakeswar Mitra, Debasis |
| Abstract | This article presents a novel approach to improve the efficiency of a radiative near-field wireless power transfer (WPT) system by using metasurface. The WPT system is designed particularly for implantable applications, which operate at the industrial, scientific, and medical (ISM) 2.40–2.48 GHz band. To construct the WPT link, a patch antenna is used as the transmitting element whereas a small planar loop antenna is considered as the receiving element. The receiving antenna is implanted under the skin tissue model operating at 2.45 GHz. The metasurface with a high refractive index is placed above the surface of the skin layer to improve the power transfer efficiency. Regarding the motion of the human body, different misalignment tolerances between the transmitter and the implant receiver are discussed. Also, the effect in the change of the skin property and placement depth of the Rx antenna inside the skin tissue model is studied. Furthermore, the study of specific absorption rate for the proposed configuration is performed. Finally, the proposed WPT system is designed and experimentally verified with and without metasurface. The experimental result confirms a significant amount of improvement in power transfer efficiency due to the integration of metasurface. |
| Starting Page | 1974 |
| Ending Page | 1982 |
| Page Count | 9 |
| ISSN | 17518725 |
| Volume Number | 13 |
| e-ISSN | 17518733 |
| Issue Number | Issue 12, Oct (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/13/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2019.0141 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2019-05-28 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Frequency 2.4 GHz to 2.48 GHz Frequency 2.45 GHz High Refractive Index Implant Receiver Implantable Application Implantable Medical Device Inductive Power Transmission Loop Antenna Metasurface-based Radiative Near-field Microstrip Antenna Misalignment Tolerances Orthotics Patch Antenna Patient Diagnostic Method And Instrumentation Placement Depth Planar Loop Antenna Power Transfer Efficiency Prosthetics Prosthetics And Other Practical Application Radio Frequency Power Transmission Radio Link And Equipment Receiving Antenna Receiving Element Refractive Index Rx Antenna Single Antenna Skin Skin Layer Skin Property Skin Tissue Model Transmitting Element UHF Antenna Wireless Power Transfer System WPT Link WPT System |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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