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Electronics
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Wireless Power Transfer Systems for Biomedical Devices: Modeling, Simulation, Application
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Wireless Power Transfer Systems for Biomedical Devices: Modeling, Simulation, Application

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Bioelectronics".

Deadline for manuscript submissions: 20 May 2024 | Viewed by 1849

Special Issue Editors

Dr. Tommaso Campi

E-Mail Website
Guest Editor
Department of Industrial and Information Engineering and Economics, University of L’Aquila, L’Aquila, Italy
Interests: wireless power transfer; bioelectromagnetics; electromagnetic compatibility
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Mauro Feliziani

E-Mail Website
Guest Editor
Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, Italy
Interests: wireless power transfer (WPT); electromagnetic compatibility (EMC); electromagnetic field (EMF) safety; computational electromagnetics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The application of wireless power transfer (WPT) technology in biomedical devices is not a new challenge. Since the early developments of WPT technology, implanted biomedical devices have been carefully considered. One of the biggest problems with active implantable medical devices (AIMDs) is the power supply to the device itself. A WPT system can transfer electrical energy via inductive, capacitive, or electromagnetic coupling from an external source to a biomedical device without using wires. For AIMDs, applying WPT technology is very beneficial as the device battery can be recharged remotely without having to surgically replace the device itself when the battery is low. WPT technology can be applied to low and very low power devices, such as pacemakers, neurostimulators, endoscopic capsules, etc., but also to high-power devices, such as artificial organs or heart pumps. The application of the WPT system on biomedical devices requires great attention because there are many electrical and clinical requirements such as system size, power level, electric and electromagnetic safety, temperature rise limits, etc. The Special Issue focuses on the modelling, simulation, and optimization of wireless power and/or charging systems for biomedical devices that can be implantable but also wearable. Potential topics also include, but are not limited to, system design and optimization, advanced compensation, electromagnetic field safety, and dosimetric analysis.

Dr. Tommaso Campi
Prof. Dr. Mauro Feliziani
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • active implanted medical devices
  • antennas
  • biomedical devices
  • dosimetry
  • electromagnetic field safety
  • heart pump
  • implantable systems
  • inductive power transfer
  • rectenna
  • midfield wireless powering
  • wireless charging
  • wireless power transfer
  • wearable systems

Published Papers (2 papers)

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Research

22 pages, 9476 KiB  
Article
Reactive Shield for Reducing the Magnetic Field of a Wireless Power Transfer System with Dipole Coil Structure
by Yujun Shin and Seongho Woo
Electronics 2024, 13(9), 1712; https://doi.org/10.3390/electronics13091712 - 29 Apr 2024
Viewed by 196
Abstract
This paper proposes a reactive shield structure to reduce the leakage magnetic field of a wireless power transfer (WPT) system with a dipole coil structure. The reactive shield resonates at a frequency lower than that of the WPT system and operates in an [...] Read more.
This paper proposes a reactive shield structure to reduce the leakage magnetic field of a wireless power transfer (WPT) system with a dipole coil structure. The reactive shield resonates at a frequency lower than that of the WPT system and operates in an inductive region where the reactance is positive. Therefore, the magnetic field generated by the shield coil is 180° different in phase from that generated by the transmitting coil, resulting in an effective reduction in the leakage magnetic field. The methodology for designing the reactive shield for the dipole coil structure is mathematically analyzed, and the current and magnetic field phases are compared. Its effectiveness has been validated through simulations and experiments. Specifically, the proposed method is validated through a 50 W class WPT experiment, which showed that the proposed shielding structure achieves efficiency reductions ranging from 0.3% to 1.5% and has a leakage magnetic field reduction effect of up to 67% compared to the comparison groups. Full article
(This article belongs to the Special Issue Wireless Power Transfer Systems for Biomedical Devices: Modeling, Simulation, Application)
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16 pages, 5834 KiB  
Article
A New Transmitting Coil for Powering Endoscopic Capsules Using Wireless Power Transfer
by Tommaso Campi, Silvano Cruciani, Francesca Maradei and Mauro Feliziani
Electronics 2023, 12(8), 1942; https://doi.org/10.3390/electronics12081942 - 20 Apr 2023
Cited by 1 | Viewed by 1251
Abstract
This study focuses on using wireless power transfer (WPT) technology based on magnetic resonant coupling (MRC) to supply electric power to an endoscopic capsule to be used for the direct feeding of specific functions or for battery charging. One of the main limitations [...] Read more.
This study focuses on using wireless power transfer (WPT) technology based on magnetic resonant coupling (MRC) to supply electric power to an endoscopic capsule to be used for the direct feeding of specific functions or for battery charging. One of the main limitations of the diffusion of endoscopic capsules is the limited autonomy of the internal battery. The aim of the paper is to present an innovative system to wirelessly power capsules using inductive coupling. Here, a new transmitting coil architecture is proposed to allow the wireless charging of the capsule equipped with a monoaxial receiving coil for any possible geometric position and orientation. The new wearable transmitting coil consists of four rectangular coils with independent excitations, and it is capable of producing a magnetic field in any direction. The obtained results in terms of electrical performance of the proposed WPT system and in terms of in situ electromagnetic physical quantities are compared with the basic restrictions of electromagnetic field (EMF) safety guidelines. The results obtained are very promising, as the proposed WPT configuration can transfer at least 250 mW in a capsule that travels along the entire gastrointestinal tract. Full article
(This article belongs to the Special Issue Wireless Power Transfer Systems for Biomedical Devices: Modeling, Simulation, Application)
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