Results 71 to 80 of about 5,272 (213)
In this paper, we provide a holistic overview of the aspect of electromagnetic radiation (EMR) and its efficient control in wireless communication networks. Especially, we focus on the emerging technology of wireless power transfer (WPT).
Gabriel Filios +3 more
doaj +1 more source
Rigorous modeling of mid-range wireless power transfer systems based on Royer oscillators
Resonant Wireless Power Transfer over variable distances requires adaptive frequency change in order to preserve efficiency. The Royer oscillator provides the capability of correctly tracking the most efficient resonant frequency without the need of ...
F. Mastri +7 more
core +1 more source
High Gain Array Antenna for Radio Frequency Energy Harvesting in Internet‐of‐Things Applications
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 +2 more
wiley +1 more source
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 +3 more
doaj +1 more source
Revisiting Two-Port Network Analysis for Wireless Power Transfer (WPT) Systems
This paper discusses the applicability of the two- port network model for the analysis of wireless power transfer (WPT) systems. The two-port network model has been extensively used to analyze microwave circuits, and identical principles have been ...
Constantin Simovski +5 more
core +1 more source
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
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
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 +3 more
wiley +1 more source
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 +4 more
doaj +1 more source
Magnetic resonance for wireless power transfer [PDF]
Magnetic resonance has been a cornerstone of nonradiative wireless power transfer (WPT) since the late 19th century. However, some researchers have the misconception that magnetic resonance for WPT was developed recently.
Hui, SYR
core +1 more source

