An Enhanced-Frequency-Splitting-Based Wireless Power and Data Transfer System Achieving 60.2% End-to-End Efficiency and 1Mb/s Data Rate with a Sub-cm RX Coil for Miniaturized Implants

📋 论文概要

该论文提出了一种基于增强频率分裂的无线功率和数据传输系统，旨在解决传统OOK调制在提高数据速率时限制功率传输的权衡问题。实验实现了60.2%的端到端效率，适用于微型植入式和可穿戴生物医学设备。

💡 主要创新点

• 采用增强频率分裂技术，在单电感链路中同时实现高效功率传输和高数据速率，克服了功率与数据速率之间的固有矛盾。
• 通过创新的频率键控方案，在不显著降低功率传输效率的前提下提升了数据传输性能。

🏷 关键词

📄 原文摘要

invasiveness and complexity of the device-deployment process. In such miniaturization, the main bottleneck is wireless power and data transfer (WPDT), particularly the volume of the receiver (RX) coil. Conventionally, on-off keying (OOK) has been widely used for WPDT over a single inductive link due to its simplicity. However, the OOK scheme restricts the power delivered to the load (PDL) as the data rate (DR) increases. To address the trade-off between PDL and DR, frequency-shift keying (FSK) and phase-shift keying (PSK) have been utilized. In these WPDT systems, there is an inherent trade-off between the power transfer efficiency (PTE) and DR, driven by the quality factors (Qs) of coils. Recently, to alleviate these trade-offs, a frequency-splitting-based WPDT (FS-WPDT) system that employs a flat-region

👥 作者与机构

Yechan Park1, Phan Dang Hung2, Donghyun Youn1, Daehyeon Kwon1, Chul Kim1, Minkyu Je1

KAIST, Daejeon, Korea Samsung Electronics, Hwaseong, Korea 1 2 Implantable medical devices have been scaled down to minimize the