Results 41 to 50 of about 3,118 (259)

Wireless Power Transfer Based on Microwaves and Time Reversal for Indoor Environments [PDF]

open access: yesIEEE Access, 2019
Resorting to power accurate delivery for wireless power transfer (WPT) based on microwaves, a theory and method based on time reversal (TR) for WPT in 3D indoor environments are presented in this paper. Conventional WPT methods have the limitations of requiring that the elements on power source array (PSA) must have the same structure and regular ...
Bing Li 0016   +5 more
openaire   +2 more sources

Wireless power transfer using Class E inverter with saturable dc-feed Inductor [PDF]

open access: yes, 2014
Resonant converters used as coil drivers in inductive links generally operate efficiently at optimum switching conditions for constant load values and ranges. Changes in load and range can shift the operation of the coil driver to a non-optimum switching
Aldhaher, Samer   +2 more
core   +1 more source

Adaptive Impedance Matching Scheme for Magnetic MIMO Wireless Power Transfer System

open access: yes, 2021
In coupled magnetic resonance (CMR) wireless energy transfer systems, the energy transfer power is low and the power transfer efficiency changes with the coil position.
Yubin Zhao, Dunge Liu, Ziyang Lu
core   +1 more source

Long-Distance High-Power Wireless Optical Energy Transmission Based on VECSELs

open access: yesCrystals, 2022
Wireless charging systems are critical for safely and efficiently recharging mobile electronic devices. Current wireless charging technologies involving inductive coupling, magnetic resonance coupling, and microwave transmission are bulky, require ...
Zhuo Zhang   +10 more
doaj   +1 more source

Efficient Wireless Power Transfer via Magnetic Resonance Coupling Using Automated Impedance Matching Circuit [PDF]

open access: yes, 2021
In this paper, an automated impedance matching circuit is proposed to match the impedance of the transmit and receive resonators for optimum wireless power transfer (WPT).
Ernesto Limiti   +9 more
core   +1 more source

Implementation Challenges and Opportunities in Beyond-5G and 6G Communication

open access: yesIEEE Journal of Microwaves, 2021
As 5G New Radio (NR) is being rolled out, research effort is being focused on the evolution of what is to come in the post-5G era. In order to meet the diverse requirements of future wireless communication in terms of increased capacity and reduced ...
Ulf Gustavsson   +11 more
doaj   +1 more source

Dielectric Metasurface Inspired Directional Multi-Port Luneburg Lens as a Medium for 5G Wireless Power Transfer—A Design Methodology

open access: yesIEEE Photonics Journal, 2022
In this paper, a novel dielectric metasurface-inspired multi-beam directional Luneburg lens is proposed as a wireless power transfer medium at 5G mm-wave band.
Basudev Majumder   +3 more
doaj   +1 more source

Far-Field Wireless Power Transfer for the Internet of Things

open access: yes, 2022
A complete end-to-end far-field wireless power transfer (WPT) is proposed and studied in this paper for the application of the Internet of Things (IoT) at the industrial, scientific, and medical (ISM) band of 2.4 GHz.
Abbas Ali Lotfi-Neyestanak   +3 more
core   +1 more source

RF Systems Design for Simultaneous Wireless Information and Power Transfer (SWIPT) in Automation and Transportation

open access: yesIEEE Journal of Microwaves, 2021
This work presents some recent solutions that exploit the wireless power transfer (WPT) technology for energizing moving vehicles and machinery tools.
DIEGO MASOTTI   +4 more
doaj   +1 more source

Efficiency Bound Estimation for a Practical Microwave and mmWave Wireless Power Transfer System Design [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
In this study, we present an efficient method to find the power transfer efficiency (PTE) bound for practical microwave and mmWave wireless power transfer (MPT) systems composed of transmitter (Tx) and receiver (Rx) array antennas.
Ho Yeol Kim, Youngseok Lee, Sangwook Nam
doaj   +1 more source

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