Development of Highly-Efficient Near-Field WPT and RCN-Based Rectifier for IoT Sensors

Adil Karimov, Kassen Dautov, Mohammad Hashmi

2023

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DOI 10.1109/usnc-ursi52151.2023.10237728
Data confidence 85 high
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Abstract

This paper presents a highly-efficient wireless power transfer (WPT) system intended to charge various Internet of things devices. The developed system consists of a compact WPT and resistance compression network (RCN)-based rectifier. Furthermore, both circuits operate at the practical frequency of 433 MHz. It is imperative to mention that realized near-field WPT showed 74% power transfer efficiency for the working distance of 20 mm. In addition, the RCN-based rectifier demonstrated a power conversion efficiency of around 60%.