Results 21 to 30 of about 40,193 (246)

Noise Suppression and Precise Phase Control of a Commercial S-Band Magnetron

open access: yesIEEE Access, 2020
We demonstrate noise suppression and precise phase control of a commercial 2.45GHz magnetron aiming for wireless power transfer application. The impurity of the microwave spectrum was confirmed to be due to the switching frequency of 76kHz in the power ...
Seong-Tae Han   +3 more
doaj   +1 more source

Wireless Power Transfer System Based on Strapping Resonators

open access: yesApplied Sciences, 2018
In this study, a kind of strapped resonator is proposed to deal with high power wireless power transfer (WPT) in microwave regimes. In many specific applications, such as high power microwave wireless power transfer system (WPT), a coil resonator is not ...
Fei-Fei Guo, Shuai Ding, Bing-Zhong Wang
doaj   +1 more source

Design and implementation of a near-field focused metasurface for microwave power transmission

open access: yesResults in Physics, 2023
In this paper, a near-field focused (NFF) metasurface composed of sub-wavelength structures for microwave power transmission is designed and implemented.
Han Xiong   +5 more
doaj   +1 more source

A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power Transfer

open access: yesSensors, 2021
A novel wearable button antenna sensor is proposed for the concept of simultaneous wireless information and power transfer (SWIPT). This integrates two working modes for the transfer of power and information, respectively, and optimizes transfer ...
Jiahao Zhang   +4 more
doaj   +1 more source

Sidelobe Suppression Beamforming Using Tapered Amplitude Distribution for a Microwave Power Transfer System with a Planar Array Antenna [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
This paper proposes a sidelobe suppression beamforming scheme using tapered amplitude distribution for microwave power transfer (MPT) with a two-dimensional planar array antenna (PAA).
Inho Park, Chulhun Seo, Hyunchul Ku
doaj   +1 more source

Signal and System Design for Wireless Power Transfer : Prototype, Experiment and Validation [PDF]

open access: yes, 2020
A new line of research on communications and signals design for Wireless Power Transfer (WPT) has recently emerged in the communication literature. Promising signal strategies to maximize the power transfer efficiency of WPT rely on (energy) beamforming,
Clerckx, Bruno   +2 more
core   +2 more sources

Experimental Demonstration of Coexistence of Microwave Wireless Communication and Power Transfer Technologies for Battery-Free Sensor Network Systems

open access: yesInternational Journal of Antennas and Propagation, 2013
This paper describes experimental demonstrations of a wireless power transfer system equipped with a microwave band communication function. Battery charging using the system is described to evaluate the possibility of the coexistence of both wireless ...
Satoshi Yoshida   +4 more
doaj   +1 more source

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

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

Wireless actuation of micromechanical resonators [PDF]

open access: yes, 2016
The wireless transfer of power is of fundamental and technical interest, with applications ranging from the remote operation of consumer electronics and implanted biomedical devices and sensors to the actuation of devices for which hard-wired power ...
Erramilli, Shyamsunder   +3 more
core   +1 more source

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