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Efficient and Low Leakage WPT System With Integrated Uncomplicated Matching Circuit Rectifier Using Metamaterial Director and Isolator for Biomedical Application | IEEE Journals & Magazine | IEEE Xplore

Efficient and Low Leakage WPT System With Integrated Uncomplicated Matching Circuit Rectifier Using Metamaterial Director and Isolator for Biomedical Application


Efficient and Compact WPT System for Biomedical Application.
Impact Statement:Take-Home Messages •Uncomplicated matching circuit rectifier integration and a low magnetic loss isolator layer that enables reduced magnetic field leakage and maintains ...Show More

Abstract:

Supplying wireless power to biomedical implants presents numerous challenges, including the compactness, efficiency, and biomedical safety of the receiver (RX). In this w...Show More
Impact Statement:
Take-Home Messages •Uncomplicated matching circuit rectifier integration and a low magnetic loss isolator layer that enables reduced magnetic field leakage and maintains a high-performance wireless power transfer (WPT) system. •A compact Wireless Power Transfer (WPT) system featuring a low magnetic loss stacked MRR metamaterial, an uncomplicated matching circuit rectifier, and a 3-layer zero characteristics metamaterial isolator, ensuring high efficiency, misalignment resilience, safety compliance, and reduced magnetic field leakage and power losses at 50 MHz. •The targeted biological and/or medical applications of this research include non-invasive imaging, targeted drug delivery, and enhanced diagnostics for improved disease detection and treatment. •This advancement enables efficient wireless power transfer, improved system performance during misalignment, compliance with safety standards, and reduced magnetic field leakage and power losses, thereby enhancing the feasibility and app...

Abstract:

Supplying wireless power to biomedical implants presents numerous challenges, including the compactness, efficiency, and biomedical safety of the receiver (RX). In this work, we propose several solutions to overcome these challenges. Firstly, we designed a metamaterial-inspired transmitter (TX) based on a multi-ring resonator (MRR). This transmitter achieves low magnetic loss and is used as a director to supply power to the RX, featuring an integrated uncomplicated matching circuit rectifier. Secondly, to realize the rectifier, we leverage the high coupling achieved through the proposed MRR metamaterial. The rectifier is integrated on the backside of the RX substrate without requiring additional area for further compactness. Additionally, we introduce a metamaterial-based isolator designed to reduce magnetic field leakage on the back side of the system. Importantly, this isolator has been proven to have no adverse effects on the original wireless power transfer (WPT) system's performan...
Efficient and Compact WPT System for Biomedical Application.
Page(s): 144 - 154
Date of Publication: 06 May 2024

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