Results 51 to 60 of about 3,118 (259)

Metaheuristic-Based Optimization and Prototype Investigation of Low Frequency Metamaterial for Wireless Power Transfer Application

IEEE Access, 2023
The adoption of wireless charging technologies for consumer and industrial applications is inhibited by concerns over reliability culminating from the fluctuating output power, low transmit power, and power transfer efficiency (PTE) of these systems ...
Webster Adepoju, Indranil Bhattacharya, Mary Sanyaolu, Muhammad Bima Enagi, Ebrahim Nasr Esfahani, Trapa Banik, Olatunji Abiodun   +6 more
doaj   +1 more source

Analysis and Experiment on Multi-Antenna-to-Multi-Antenna RF Wireless Power Transfer

IEEE Access, 2021
In this paper, we provide a tool for predicting the power transfer efficiency of radio-frequency (RF) wireless power transfer (WPT). With its capability of long-range wireless power transfer, RF WPT is considered as a very promising recharging technique ...
Je Hyeon Park, Dong In Kim, Kae Won Choi
doaj   +1 more source

Compensation Parameters Optimization of Wireless Power Transfer for Electric Vehicles

, 2020
For wireless charging of electric vehicles (EVs), increasing the output power level is particularly important. In this paper, the purpose of improving the output power while maintaining optimal transmission efficiency is achieved by optimizing the ...
Feng Wen, Xiaohu Chu, Wei Gu, Qiang Li
core   +1 more source

Study of wireless power transfer link with metallic plates [PDF]

, 2013
In this paper, the wireless power transfer link with metallic plates is studied. By enforcing the boundary conditions along metallic surface, the magnetic fields are well confined between two plates and its flux focusing can be also improved.
Changjun Liu, Sun, S, Liu, C, Sheng Sun, Ma, J, Jing Ma   +5 more
core   +1 more source

Reduction of Human Interaction with Wireless Power Transfer System Using Shielded Loop Coil

, 2020
The impedance variation of wireless power transfer (WPT) coils owing to the presence of the human body may result in mismatches, resulting in a decrease of the transmission efficiency.
Akihiko Kumazawa, Hiroshi Hirayama, Yinliang Diao, Akimasa Hirata   +3 more
core   +1 more source

A Multireceiver Wireless Power Supply System with Power Equalization in Stereoscopic Space

, 2021
With the rapid development of wireless power transfer (WPT) technology, the traditional single-transceiver WPT system has become more and more advanced; however, it is still difficult to meet its extensive application requirements. Aiming at the wireless
Feng Wen, Xiaohu Chu, Bin Shi
core   +1 more source

Energizing Emergency Exit Signs with Wireless Energy Transfer

Energies, 2023
Emergency exit lights in public buildings are necessary for safety and evacuation. International safety standards require such lighting in many public places, like airports, schools, malls, hospitals, and other spaces, to prevent human casualties in ...
Mohamed Z. Chaari, Gilroy P. Pereira, Mohamed Abdelfatah, Rashid Al-Rahimi, Otman Aghzout   +4 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Sensitive Microwave Rectifier for High-Power Wireless Transfer Based on Ultra-Low Turn-On Voltage Quasi-Vertical GaN SBD

IEEE Open Journal of Power Electronics
This paper presents the theoretical analysis and experimental validation of a harmonic-terminated high-efficiency and high-power microwave rectifier.
Xiaochen Yu, Ya-Xun Lin, Ivona Z. Mitrovic, Steve Hall, Jenq-Horng Liang, Der-Sheng Chao, Minzhang Liu, Xiantao Yang, Yi Huang, Ta-Jen Yen, Jiafeng Zhou   +10 more
doaj   +1 more source

Unified Expression of the Conjugate Image Impedances for Two-port Representations [PDF]

Radioengineering, 2022
Conjugate image impedances are used to minimize power reflections in a variety of domains, including amplifier design, microwave engineering, wireless power transfer, antenna design and millimeter wave applications.
B. Minnaert
doaj