An Ultrasound-Powering TX with a Global Charge-Redistribution Adiabatic Drive Achieving 69% Power Reduction and 53° Maximum Beam Steering Angle for Implantable Applications

📋 论文概要

本文提出了一种用于植入式设备的超声供电发射器，采用全局电荷再分配绝热驱动技术，实现了69%的功耗降低和最大53°的波束转向角，解决了传统系绳植入物带来的组织损伤问题。

💡 主要创新点

• 提出全局电荷再分配绝热驱动技术，显著降低发射器功耗。
• 实现大角度波束转向（最大53°），提升超声能量传输的灵活性。
• 针对植入式设备设计，避免系绳连接，减少组织损伤风险。

🏷 关键词

📄 原文摘要

Robert Ukropec3, Pieter Gijsenbergh3, Veronique Rochus3, Nick Van Helleputte3, Wouter Serdijn2, Yao-Hong Liu1,2 imec, Eindhoven, The Netherlands Delft University of Technology, Delft, The Netherlands 3 imec, Leuven, Belgium 1 2 State-of-the-art intracortical neural recording and stimulation systems rely on subdural implants tethered to a cranial implant which itself has a wireless power and data link to the outside world [1] (Fig. 6.2.1). However, this tethered configuration poses challenges such as scarring and potential damage to the surrounding tissue due to strain and micromotions, making this approach unsuitable for chronical implants [2]. Consequently, there is growing interest in wireless connections between cranial and subdural implants. This paper focuses on wireless powering between implants, traversing the dura and cerebrospinal fluid (CSF) tissue layers over distances of 0.5 to 1cm (transdural

👥 作者与机构

Marios Gourdouparis1,2, Chengyao Shi1, Yuming He1, Stefano Stanzione1,