Frequency-selective and high-performance wireless power transmission system for a multifunctional capsule endoscope: A feasibility study

IF 3.1 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Microelectronic Engineering Pub Date : 2025-07-22 DOI:10.1016/j.mee.2025.112387

Phi Cuong Ly , Ngoc Thuy Thi Nguyen , Tongil Park , Hana Choi , Doyeon Bang , Jong-Oh Park , Byungjeon Kang , Kim Tien Nguyen , Jayoung Kim

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Abstract

Due to limitations in receiving power and controllability, wireless power transmission remains an open challenge for implantable devices and the active multifunctional capsule endoscope. This work introduces a novel high-performance resonant wireless power transmission system featuring selective operating frequency control. The system is comprised of a controllable transmitting unit and multiple receiving units. The transmitting unit is capable of generating powerful alternative magnetic field at multiple desired frequencies, while each of the receiving units is designed to resonate with the transmission signal at a desired frequency. This enabled selective wireless power delivery in our region of interest across a frequency range from 70 to 100 kHz, with maximum power transfer efficiency of 35 % measured at frequency of 100 kHz and distance 9 cm from transmission coil. Furthermore, this system demonstrated successful independent control of the temperature by heating coils for the morphology changes of each soft actuator, enabling the locomotion of the soft capsule endoscope.

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用于多功能胶囊内窥镜的频率选择和高性能无线电力传输系统的可行性研究

由于接收功率和可控性的限制，无线电力传输对于植入式设备和主动式多功能胶囊内窥镜来说仍然是一个开放的挑战。本文介绍了一种具有选择性工作频率控制的新型高性能谐振无线电力传输系统。该系统由一个可控发射单元和多个接收单元组成。发射单元能够在多个期望的频率上产生强大的替代磁场，而每个接收单元被设计成在期望的频率上与发射信号共振。这使我们感兴趣的区域在70至100 kHz的频率范围内实现了选择性无线电力传输，在100 kHz频率和距离传输线圈9厘米的距离下，最大电力传输效率为35%。此外，该系统成功地通过加热线圈对每个软执行器的形态变化进行独立的温度控制，使软胶囊内窥镜能够运动。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Microelectronic Engineering 工程技术-工程：电子与电气

CiteScore

5.30

自引率

4.30%

发文量

131

审稿时长

29 days

期刊介绍： Microelectronic Engineering is the premier nanoprocessing, and nanotechnology journal focusing on fabrication of electronic, photonic, bioelectronic, electromechanic and fluidic devices and systems, and their applications in the broad areas of electronics, photonics, energy, life sciences, and environment. It covers also the expanding interdisciplinary field of "more than Moore" and "beyond Moore" integrated nanoelectronics / photonics and micro-/nano-/bio-systems. Through its unique mixture of peer-reviewed articles, reviews, accelerated publications, short and Technical notes, and the latest research news on key developments, Microelectronic Engineering provides comprehensive coverage of this exciting, interdisciplinary and dynamic new field for researchers in academia and professionals in industry.