Results 71 to 80 of about 627 (182)
Microscale Chiral Rectennas for Energy Harvesting
Advanced MaterialsAbstractWireless radiofrequency rectifiers have the potential to power the billions of “Internet of Things” (IoT) devices currently in use by effectively harnessing ambient electromagnetic radiation. However, the current technology relies on the implementation of rectifiers based on Schottky diodes, which exhibit limited capabilities for high‐frequency
Suárez-Rodríguez, Manuel +8 more
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Harmonic Reflection Rectenna for Precise Wireless Power Transfer Antenna Alignment
IEEE AccessThis study introduces a highly efficient harmonic reflection (HR) rectenna designed for precise wireless power transfer (WPT) antenna alignment. The proposed HR rectenna not only converts RF signals to DC power but also transmits a second-harmonic signal
Seongick Jo, Jisu Kim, Juntaek Oh
doaj +1 more source
, 2013 We introduce strongly-coupled optical gap antennas to interface optical radiation with current-carrying electrons at the nanoscale. The transducer relies on the nonlinear optical and electrical properties of an optical antenna operating in the tunneling regime.
Stolz, A. +4 more
openaire +2 more sources
Design of high-efficiency rectenna for microwave power wireless transmission systems
ETRI JournalRadio power transmission is studied herein. A rectenna with high-efficiency microwave power transmission is proposed. Improvement on the traditional Yagi antenna structure is implemented by using a rectenna.
Jia-Xiang Chen +6 more
doaj +1 more source
Results in EngineeringThe current research introduces a novel dual ultra-wideband rectenna that has been specifically devised for the S and C bands. The rectenna configuration being presented demonstrates the potential to efficiently capture energy from 1.5 GHz to 4.65 GHz ...
Shailendra Singh Ojha +8 more
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A Circular Polarized Rectenna with Out-of-Band Suppression for Microwave Power Transmission
International Journal of Antennas and Propagation, 2016 A novel circular polarized rectenna with out-of-band suppression is proposed in this paper. The circular polarization is realized by corner perturbation on a rectangular radiation patch and enhanced by a diagonal slim slot etched at the center of the ...
Weijun Hong +5 more
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Studies of corrugated antipodal vivaldi wideband antenna with notched band and rectenna integration
e-Prime: Advances in Electrical Engineering, Electronics and EnergyA wideband rectenna based on a Corrugated Antipodal Vivaldi Antenna (AVA) with a notched band is proposed for energy harvesting applications. The antenna performance is studied parametrically by varying the corrugated and rectangular spiral slot (RSS ...
Nurhayati Nurhayati +6 more
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Meta-rectenna array for electromagnetic energy harvesting
Results in EngineeringThis paper proposes the integration of a specially designed metamaterial substrate with an ultra-wideband (UWB) antenna to form a highly efficient meta-rectenna array for electromagnetic (EM) energy harvesting across a broad frequency range (800 MHz to 3
Emanoil Surducan +2 more
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Flexible Meta-Patch Rectenna Array for Energizing Low-Power Wearable Medical Sensors
IEEE AccessThis article presents a low-cost $2\times 2$ metasurface-based rectenna array operating at the 2.45 GHz industrial, scientific, and medical (ISM) band, designed to power low-power wearable medical sensors (WMS).
Hussein Yahya Alkhalaf +5 more
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Numerical analysis of MIM nano-rectenna with metasurface for infrared energy harvesting
Alexandria Engineering JournalA novel approach for infrared (IR) energy harvesting through the integration of a resonating metasurface with a metal-insulator-metal (MIM) nano-rectenna is presented.
Hatem Rmili +6 more
doaj +1 more source