Results 11 to 20 of about 3,118 (259)

A Circularly Polarized Implantable Rectenna for Microwave Wireless Power Transfer [PDF]

open access: yesMicromachines, 2022
A circularly polarized implantable antenna integrated with a voltage-doubled rectifier (abbr., rectenna) is investigated for microwave wireless power transfer in the industrial, scientific, and medical (ISM) band of 2.4–2.48 GHz.
Chao Xu, Yi Fan, Xiongying Liu
doaj   +5 more sources

History and Innovation of Wireless Power Transfer via Microwaves [PDF]

open access: yesIEEE Journal of Microwaves, 2021
Wireless power transfer (WPT) has a long history of over 100 years since the first experiment conducted by Nicola Tesla. However, the most interesting innovation of WPT was born in the 21st century.
Naoki Shinohara
doaj   +2 more sources

Extendable Array Rectenna for a Microwave Wireless Power Transfer System [PDF]

open access: yesIEEE Access, 2021
In this study, a rectenna is adopted in a microwave-based wireless power transfer system to rectify the received radio frequency (RF) to DC power. Each rectenna comprises a DC-DC converter at the DC output port to ensure a stable power supply and a ...
Jeong-Min Woo   +6 more
doaj   +2 more sources

Dual-Polarized Dipole Antenna for Wireless Data and Microwave Power Transfer [PDF]

open access: yesElectronics, 2022
This manuscript presents a broadband high-efficiency dual-polarized dipole antenna for wireless power and data transfer. The proposed antenna mainly consists of cross-dipole patches, matching baluns, and a ground plane. The dual-polarized radiation mode was achieved by using two linear-polarization matching baluns to feed the cross-dipole patches ...
Liangbing Liao   +3 more
openaire   +2 more sources

Obstacle‐Immune Microwave Wireless Power Transfer System Based on Amplitude‐Dependent Caustic Metasurface [PDF]

open access: yesAdvanced Science
Rapid advances in the Internet of Everything (IoE) drive microwave wireless power transfer (MWPT) technology for charging wireless smart devices. However, environmental obstacles and safety concerns associated with high‐power transmission present new ...
Song Zhang   +7 more
doaj   +2 more sources

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

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   +2 more sources

Ultra-Wideband Quad-Parallel Shunt-Diode Rectifier for Sub-6 GHz Wireless Power Transfer [PDF]

open access: yesMicromachines
Wireless power transfer via RF/microwave rectifiers has emerged as a sustainable solution to the energy requirements of low-power devices. In this study, a novel four-parallel-shunt-diode ultra-wideband rectifier is proposed to enable wireless power ...
Sadık Zuhur
doaj   +2 more sources

An integrated power conversion system for bidirectional microwave wireless power transfer

open access: yesWireless Power Transfer
This paper proposes a bidirectional wireless power conversion system that integrates the functions of a power amplifier (PA) and a rectifier at a frequency of 2.45 GHz.
Xian Zhang   +4 more
doaj   +2 more sources

Microwave Wireless Power Transfer System Based on a Frequency Reconfigurable Microstrip Patch Antenna Array

open access: yesEnergies, 2021
The microwave wireless power transfer (MWPT) technology has found a variety of applications in consumer electronics, medical implants and sensor networks. Here, instead of a magnetic resonant coupling wireless power transfer (MRCWPT) system, a novel MWPT
Haiyue Wang   +5 more
doaj   +3 more sources

Wireless Power Transfer to a Microaerial Vehicle with a Microwave Active Phased Array [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2014
A wireless power transfer system using a microwave active phased array was developed. In the system, power is transferred to a circling microaerial vehicle (MAV) by a microwave beam of 5.8 GHz, which is formed and directed to the MAV using an active ...
Shotaro Nako   +4 more
doaj   +2 more sources

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