Results 61 to 70 of about 2,640 (219)

A High-Efficiency and Wide-Input Range RF Energy Harvester Using Multiple Rectenna and Adaptive Matching

open access: yesEnergies, 2020
In this paper, a Radio Frequency (RF) energy harvester (EH) system for Internet of Things (IoT)-related applications is presented. The proposed EH architecture operates at 5.2 GHz band and utilizes multiple rectenna. This approach enhances the efficiency
Hamed Abbasizadeh   +12 more
doaj   +1 more source

Optimized design of multiband and solar rectennas [PDF]

open access: yes2014 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), 2014
This paper presents several designs of multiband and solar rectennas. The procedure in order to perform multiband optimization of rectenna elements is presented and two design examples of 850 MHz/1850MHz and 915MHz/2.45GHz dual band rectennas are discussed. Additionally, two designs of compact solar rectennas where the solar cells share the area of the
Kyriaki Niotaki   +5 more
openaire   +2 more sources

High‐Efficiency Millimeter‐Wave Scalable Rectenna Array With Individual Impedance Control

open access: yesInternational Journal of Circuit Theory and Applications, Volume 53, Issue 11, Page 6143-6151, November 2025.
This study proposes a millimeter‐wave scalable rectenna array with individual fundamental and second harmonic impedance control for high‐efficiency wireless power transfer. The array integrates rectifiers, patch antennas, and a DC combining network, ensuring effective impedance matching and optimal power conversion while maintaining independent control
Yeonsoo Kim   +5 more
wiley   +1 more source

Ultra-compact Ku band rectenna

open access: yes, 2015
International audienceThis paper addresses an innovative and ultra-compact rectenna designed for energy harvesting or wireless power transfer applications. The presented rectenna uses a printed cross dipoles antenna array and a rectifier implemented with
S. Charlot   +5 more
core   +1 more source

Determining the Direction of Radio Wave Reception for Maximum Radiation Using Genetic Algorithm and RF to DC Conversion Efficiency Analysis

open access: yesEngineering Reports, Volume 7, Issue 9, September 2025.
In this study, a new plan for routing radio transmitters is presented using an algorithm compatible with RFEH. The proposed algorithm is based on the genetic algorithm (GA), and in an innovation, using the HPBW in the GA creates a population for initial sampling dependent on the receiver antenna.
S. Hosseini   +3 more
wiley   +1 more source

Rectennas for microwave power transmission

open access: yesIEICE Electronics Express, 2013
Microwave power transmission (MPT) has had a long history before the more recent movement toward wireless power transmission (WPT). MPT can be applied not only to beam-type point-to-point WPT but also to an energy harvesting system fed from distributed or broadcasting radio waves.
openaire   +2 more sources

Harnessing Dynamic Electrostatic Fields for Energy Generation with Diode Cells

open access: yesAdvanced Science, Volume 12, Issue 28, July 24, 2025.
Stationary diode cells (DiCes) are fabricated to harvest energy from dynamically changing electrostatic fields by leveraging the unique current modulation properties of diodes. The DiCes can directly output DC voltage and current. Their applications range from energy harvesting and powering implanted devices to use in sensors.
Renyun Zhang   +7 more
wiley   +1 more source

Design rectenna for wireless energy harvesting

open access: yes, 2015
There is an increasing interest in energy harvesting. The rectenna, which is a combination of a rectifier and an antenna, is a device to harvest wireless energy in the air.
A. Aly, Ayman   +16 more
core   +1 more source

Rectenna system design

open access: yes, 1980
The function of the rectenna in the solar power satellite system is described and the basic design choices based on the desired microwave field concentration and ground clearance requirements are given.
Brown, W. C.   +3 more
core   +2 more sources

Semiconductor‐to‐metal transition in platinum dichalcogenides induced by niobium dichalcogenides

open access: yesInfoMat, Volume 7, Issue 6, June 2025.
Platinum dichalcogenides exhibit a semiconductor‐to‐metal transition when grown on niobium dichalcogenides, regardless of their layer numbers. Abstract Metallizing 2D semiconductors is a crucial research area with significant applications, such as reducing the contact resistance at metal/2D semiconductor interfaces.
Lei Zhang   +9 more
wiley   +1 more source

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