Results 31 to 40 of about 239,965 (279)
Wireless Power TransferThis paper presents a 6.78 MHz wireless power transfer (WPT) system designed to provide load-independent constant voltage output, making it ideal for applications such as unmanned aerial vehicle (UAV) charging.
Yongquan Wu +5 more
doaj +1 more source
Energy-Efficient Power Allocation in OFDM Systems with Wireless Information and Power Transfer
, 2013 This paper considers an orthogonal frequency division multiplexing (OFDM) downlink point-to-point system with simultaneous wireless information and power transfer.
Lo, Ernest S. +2 more
core +1 more source
Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding
Advanced Engineering Materials, EarlyView.This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou +6 more
wiley +1 more source
Control-oriented closed-loop identification and input design in a wireless power transfer system
Wireless Power TransferThis study proposes a closed-loop identification scheme for a wireless power transfer (WPT) system that estimates the actual system model and uses it to design and update the controller.
Shuaiqi Li +3 more
doaj +1 more source
Review of low‐loss wireless power transfer methods for autonomous underwater vehicles
IET Power Electronics, 2022 Comprehensive research on the wireless power transfer technology of autonomous underwater vehicles is necessary to address the issue of significant energy loss in such vehicles during wireless power transfer.
Ben Zhang +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya +3 more
wiley +1 more source
An integrated power conversion system for bidirectional microwave wireless power transfer
Wireless Power TransferThis 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 +1 more source
Coherently Enhanced Wireless Power Transfer
Physical Review Letters, 2018 Extraction of electromagnetic energy by an antenna from impinging external radiation is at the basis of wireless communications and power transfer (WPT). The maximum of transferred energy is ensured when the antenna is conjugately matched, i.e., when it is resonant and it has an equal coupling with free space and its load, which is not easily ...
Krasnok, Alex +5 more
openaire +6 more sources
Underwater wireless power transfer [PDF]
2015 IEEE Wireless Power Transfer Conference (WPTC), 2015 The feasibility of transferring power over a wide range of distances and orientation offsets has been proven in air for various commercial applications, notably in the electric vehicle industry, by using two loosely-coupled RLC circuits that are tuned to resonate at the same frequency.
Alex Askari +4 more
openaire +1 more source
Advanced Functional Materials, EarlyView.Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong +16 more
wiley +1 more source