Results 81 to 90 of about 8,676 (194)

Dynamic Resource Allocation for Multiple-Antenna Wireless Power Transfer

, 2013
We consider a point-to-point multiple-input-single-output (MISO) system where a receiver harvests energy from a wireless power transmitter to power itself for various applications.
Guan, Yong Liang, Ho, Chin Keong, Yang, Gang   +2 more
core   +1 more source

High‐Frequency Thin‐Film Magnetic Sensor for Precise Magnetic Near‐Field Measurement

IEEJ Transactions on Electrical and Electronic Engineering, Volume 20, Issue 11, Page 1672-1678, November 2025.
Highly sensitive magnetic field sensors are essential for applications such as biomedical diagnostics and electromagnetic compatibility (EMC) assessments. This study focuses on optimizing a GHz‐range thin‐film magnetic sensor by incorporating a slit pattern in the magnetic layer, which improves impedance matching and current distribution.
Loi Tonthat, Ryota Suzuki, Jerdvisanop Chakarothai, Katsumi Fujii, Shin Yabukami   +4 more
wiley   +1 more source

Beamforming for Magnetic Induction based Wireless Power Transfer Systems with Multiple Receivers

, 2015
Magnetic induction (MI) based communication and power transfer systems have gained an increased attention in the recent years. Typical applications for these systems lie in the area of wireless charging, near-field communication, and wireless sensor ...
Akyildiz, I. F., Gerstacker, W., Kisseleff, S.   +2 more
core   +1 more source

Evaluation of Exposure Assessment Methods and Procedures for Induction Hobs

Bioelectromagnetics, Volume 46, Issue 7, October 2025.
ABSTRACT Induction hobs generate strong alternating magnetic fields to heat pots by inducing eddy currents. These fields are the strongest close to the bottom of the cookware, but stray fields at large distances can still be substantial. In general, these are higher than the reference levels defined by international electromagnetic exposure safety ...
Jingtian Xi, Sven Kühn, Cosimo Fortunato, Erdem Ofli, Niels Kuster   +4 more
wiley   +1 more source

Empirical Study of Far-Field Radio Frequency Wireless Power Transfer Testbed for Underground Mines Based on 1.8 GHz

IEEE Access
A novel 1.8 GHz far-field wireless power transfer (WPT) testbed was designed to achieve long-distance energy harvesting in underground mine (UM). Prior experimental studies confirm that underground mines experience 50 dB radio frequency (RF) signal ...
Anabi Hilary Kelechi, Frimpong Samuel
doaj   +1 more source

Smart Table Based on Metasurface for Wireless Power Transfer

, 2018
Metasurfaces have been investigated and its numerous exotic functionalities and the potentials to arbitrarily control of the electromagnetic fields have been extensively explored.
Baryshnikova, Kseniia, Belov, Pavel, Kapitanova, Polina, Markvart, Aleksandr, Nenasheva, Elizaveta, Simovski, Constantin, Song, Mingzhao   +6 more
core   +1 more source

Space‐Time‐Modulated Metasurface Enabled High‐Performance Near‐Field Focusing with Enhanced Phase Modulation

Laser &Photonics Reviews, Volume 19, Issue 19, October 7, 2025.
This study leverages STM technology to enhance NFF performance by enabling continuous phase control at the +1st harmonic without increasing hardware complexity. It overcomes the limitations of conventional 1‐bit TMs caused by phase quantization errors and demonstrates that even compact arrays can achieve effective focusing, highlighting the strong ...
Manting Wang, Dashuang Liao, Chenfeng Yang, Ki Fung Jason Cheng, Man To Yim, Ka Fai Chan, Geng‐Bo Wu, Chi Hou Chan   +7 more
wiley   +1 more source

High‐Isolation and Compact Wireless Power Supply for Gate Drivers of SiC Devices With Improved Class‐E Inverter

High Voltage, Volume 10, Issue 5, Page 1282-1292, October 2025.
ABSTRACT Gate drivers for high‐voltage silicon carbide (SiC) converters require a reliable power supply with strong isolation and compact size. However, existing gate driver power supplies (GDPS) with the transformer structure make it difficult to enhance the isolation performance while keeping the small coupling capacitance and volume.
Jianyu Pan, Sheng Yan, Haibo Tang, Xiaojie Fu, Yihui Zhao, Junwei Xiao, Hao Feng, Manlin Yang   +7 more
wiley   +1 more source

Experimental Results and Analysis of Midrange Underwater Asymmetric Wireless Power Transfer

Journal of Marine Science and Engineering
The eddy current loss caused by the conductivity of seawater results in a relatively low transfer efficiency of underwater wireless power transfer (WPT). And the transfer distance of the current WPT system is relatively short.
Yichi Chen, Wangqiang Niu, Yanhua Yang, Yassine Amirat   +3 more
doaj   +1 more source

Energy Harvesting Noncoherent Cooperative Communications

, 2015
This paper investigates simultaneous wireless information and power transfer (SWIPT) in energy harvesting (EH) relay systems. Unlike existing SWIPT schemes requiring the channel state information (CSI) for coherent information delivery, we propose a ...
Gazor, Saeed, Kim, Dong In, Kim, Il-Min, Liu, Peng   +3 more
core   +1 more source