Results 91 to 100 of about 7,076,846 (209)
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
An Enhanced Multiple Harmonics Analysis Method for Wireless Power Transfer Systems
First harmonic analysis (FHA) is arguably the most widely used analytical technique for wireless power transfer (WPT) circuits due to its simplicity. Although FHA can provide closed-form solutions, the existence of rectifier diode forward voltage drop ...
Pong, BMH, Fang, Y, Hui, R
core +1 more source
A novel 1.8 GHz far-field wireless power transfer (WPT) testbed was designed to achieve long-distance energy harvesting in underground mine (UM). Prior experimental studies confirm that underground mines experience 50 dB radio frequency (RF) signal ...
Anabi Hilary Kelechi, Frimpong Samuel
doaj +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
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
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
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
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
WIRELESS POWER TRANSFER VIA MAGNETICALLY COUPLED RESONANCE FOR SMALL ELECTRONIC DEVICES
The widespread use of all kinds of small portable devices have created the demands for wireless power transfer (WPT) systems that are proper for mobile devices.
Peng, Wan
core
Experimental Results and Analysis of Midrange Underwater Asymmetric Wireless Power Transfer
The eddy current loss caused by the conductivity of seawater results in a relatively low transfer efficiency of underwater wireless power transfer (WPT). And the transfer distance of the current WPT system is relatively short.
Yichi Chen +3 more
doaj +1 more source

