A review on antenna technologies for ambient RF energy harvesting and wireless power transfer: Designs, challenges and applications

MA Ullah, R Keshavarz, M Abolhasan, J Lipman… - IEEE …, 2022 - ieeexplore.ieee.org
… In addition, measurement of RF fields can be used to obtain … received RF power reduces due
to high free space path loss (FSPL… Second iteration of the fractal shape is used in the patch, …

Metamaterials and metasurfaces for wireless power transfer and energy harvesting

J Zhou, P Zhang, J Han, L Li… - Proceedings of the …, 2021 - ieeexplore.ieee.org
… and the shape of the field-localizing areareducing the loss caused by adding them. Any
gain in efficiency achieved by metamaterials should not be canceled out by the additional loss

Rectennas for radio-frequency energy harvesting and wireless power transfer: A review of antenna design [antenna applications corner]

M Wagih, AS Weddell, S Beeby - IEEE Antennas and …, 2020 - ieeexplore.ieee.org
… standard antenna designs and methods of forming dual- or triple-… Polarization mismatch
results in reduced transmission/… reception efficiency and avoid polarization-mismatch losses are …

[HTML][HTML] Wireless power transfer for implanted medical application: A review

Y Zhou, C Liu, Y Huang - Energies, 2020 - mdpi.com
… For the secondary coil, the shape was similar to a cube with … In fact, the power loss caused
by electronics devices in small … both power and data are transmitted wirelessly to minimize the …

A low-complexity beamforming design for multiuser wireless energy transfer

OLA López, FA Monteiro, H Alves… - IEEE Wireless …, 2020 - ieeexplore.ieee.org
… In order to mitigate these adverse effects, herein we focus on … A log-distance path-loss model
with exponent 2.7 is … effective, beamforming scheme that allows a PB to fairly power a set of …

Body-coupled power transmission and energy harvesting

J Li, Y Dong, JH Park, J Yoo - Nature Electronics, 2021 - nature.com
Wireless power transmission and energy harvesting … The ground node of the transmitter
was floated, forming a parasitic … Thanks to the low path loss inherent in this power transmission

Wireless power transfer and energy harvesting in distributed sensor networks: Survey, opportunities, and challenges

GK Ijemaru, KLM Ang… - International journal of …, 2022 - journals.sagepub.com
… However, the use of far-field RF energy transfer is associated with path loss which
consequently reduces the RF power on the rectifying antenna (rectenna). Visser 52 proposed a …

[HTML][HTML] Wireless power transfer system with enhanced efficiency by using frequency reconfigurable metamaterial

D Shan, H Wang, K Cao, J Zhang - Scientific Reports, 2022 - nature.com
… A shape-reconfigurable MRCWPT system in 15 achieves … , the reflection loss S 11 and the
transmission coefficient S 21 of … field assumed throughout is a reduced magnetic field having …

A reticulated planar transmitter using a three-dimensional rotating magnetic field for free-positioning omnidirectional wireless power transfer

T Feng, Z Zuo, Y Sun, X Dai, X Wu… - … Transactions on Power …, 2022 - ieeexplore.ieee.org
… coils power loss PRx, multiple rectifiers power loss Prec, four … planar structure, which can
reduce the installation volume of … implementation of 3D magnetic field shaping via a 2D planar …

[HTML][HTML] Wireless power transfer—a review

K Detka, K Górecki - Energies, 2022 - mdpi.com
… the shape of the coils used for wireless power transmission … This factor characterizes losses
from the coil and depends primarily on … of energy transfer and results in a reduction in energy