Results 51 to 60 of about 1,934 (167)

Circuit Model and Analysis of Multi-Load Wireless Power Transfer System Based on Parity-Time Symmetry

Energies, 2020
In the multi-load wireless power transfer (WPT) system, the output power and transfer efficiency will drop significantly with the change of distance between transmitter and receiver. Power distribution among multiple loads is also a major challenge.
Chengxin Luo, Dongyuan Qiu, Manhao Lin, Bo Zhang   +3 more
doaj   +1 more source

Toroidal-Shaped Coils for a Wireless Power Transfer System for an Unmanned Aerial Vehicle [PDF]

Journal of the Korean Institute of Electromagnetic Engineering and Science, 2019
Unmanned aerial vehicles (UAVs) using communications, sensors, and navigation equipment will play a key role in future warfare. Currently, UAVs are monitored to prevent misfire and accidents, and the conventional method adopted uses wires for data ...
Jaehyoung Park, Jonghoon Kim, Yujun Shin, Bumjin Park, Won-Seok Kim, Seok-Jong Cheong, Seungyoung Ahn   +6 more
doaj   +1 more source

Metal Surface Guided-Wireless Power Transfer System for Portable Applications With Multiple Receivers

IEEE Access, 2021
Recently, research has been actively conducted to overcome various challenges observed in wireless power transfer (WPT) technology. However, as additional techniques are implemented, the complexity and cost of WPT systems increased. Therefore, there is a
Franklin Bien, Woojin Park, Bonyoung Lee, Gangil Byun   +3 more
doaj   +1 more source

Tunable Magnetoelectric Fluxguide Cancels Power Nulls in WPT Systems With Highly Misaligned Coils

Energy Technology, Volume 14, Issue 4, April 2026.
This article presents a tunable smart fluxguide made from a magnetoelectric composite to enhance positioning freedom and maintain coupling in wireless power transfer (WPT) systems. It actively distributes the magnetic field and enables to overcome unavoidable zero‐charge areas, known as “powernulls.” However, redistributing the magnetic field can ...
Hidelberto Macedo‐Zamudio, Ulrike Wallrabe   +1 more
wiley   +1 more source

High Gain Array Antenna for Radio Frequency Energy Harvesting in Internet‐of‐Things Applications

Radio Science, Volume 61, Issue 4, April 2026.
Abstract Wireless sensor networks are increasingly deployed in Internet of Things (IoT) applications, demanding self‐powered solutions to overcome the limitations of conventional batteries. Radio frequency energy harvesting (RFEH) offers a practical means to scavenge ambient RF power from ubiquitous sources such as mobile base stations, enabling ...
Muhammad Saleem, William O. F. Carvalho, Muhammad Irfan   +2 more
wiley   +1 more source

Wireless Power Transfer Modalities for Implantable Bioelectronics: Electromagnetic, Acoustic, and Magneto‐Dynamic Perspectives

Advanced Materials Technologies, Volume 11, Issue 5, 6 March 2026.
This review traces the evolution of wireless power transfer (WPT) for implantable medical devices, spanning electromagnetic, magnetoelectric, acoustic, and magneto‐dynamic systems. Quantitative comparisons of power, distance, and device scale highlight trade‐offs across modalities, while emerging hybrid mechanisms reveal strategies to overcome ...
Junyeop Kim, Yoonseok Park
wiley   +1 more source

Rethinking Power Solutions for Healthcare Wearables: From Point‐of‐Care and Episodic use to Continuous Monitoring and Therapeutic Platforms

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
This Perspective examines practical power solutions for wearable healthcare systems, highlighting the limits of standard batteries. It categorizes wearables into four domains—point‐of‐care diagnostics, episodic monitoring, continuous long‐term monitoring, and therapeutic platforms—and analyzes their power needs.
Seokheun Choi
wiley   +1 more source

A Novel Active Rectifier With Embedded Current Monitoring Capabilities for Wireless Power Transfer Systems

International Journal of Circuit Theory and Applications, Volume 54, Issue 3, Page 1257-1267, March 2026.
Proposed active rectifier solution, detailing the high‐side and low‐side power switch control circuit for implementing the active diodes. ABSTRACT This paper proposes a novel active rectifier architecture for wireless power transfer (WPT) systems. In addition to performing rectification, the proposed structure features embedded current monitoring ...
Elisabetta Moisello, Alessandro Gasparini, Piero Malcovati, Edoardo Bonizzoni   +3 more
wiley   +1 more source

Maximum efficiency and power point tracking system for hybrid compensated wireless charging of electric vehicle

Results in Engineering
Electric Vehicles (EV) charging using Wireless Power Transfer (WPT) technology has a promising future, however problems with alignment and efficiency optimization still exist.
Pabba Ramesh, R.K. Pongiannan, Lukas Demel, Roman Hrbac, Narayanamoorthi R   +4 more
doaj   +1 more source

MEMS‐Based Magnetoelectric Antennas for Wireless Power Transmission in Brain‐Implantable Devices

Advanced Materials Technologies, Volume 11, Issue 3, 5 February 2026.
Magnetoelectric (ME) antennas allow the minimization of the invasiveness of brain implantable devices, via powering wirelessly systems able to actuate neural tissue. In order to achieve the necessary power efficiency transmission, the choice of the materials and the system assembly is vital.
Laura Mazón‐Maldonado, Jungang Zhang, María Cerezo‐Sánchez, Mahdieh Shojaei Baghini, Roghaieh Parvizi, Hadi Heidari   +5 more
wiley   +1 more source