Results 41 to 50 of about 627 (182)
Dual Band Rectenna for Wireless Energy Harvesting in the 2.40 GHz and 5.38 GHz
TecnoLógicas, 2022 The objective of this study, reflected in this document, was to implement a rectenna for 2.45 GHz and 5.38 GHz wireless local area applications. For this purpose, the antenna dimensions were set to 18 mm × 44 mm, which is simulated using the optimization
Edison Andrés Zapata Ochoa +2 more
doaj +1 more source
Advanced Electronic Materials, Volume 12, Issue 4, 18 February 2026.This study introduces a new method for fabricating MIIM diodes using ultra‐precise dispensing printing techniques combined with ALD. Thus, it provides a practical alternative to traditional lithography. The fabricated diode, with a contact area of 5.4 µm × 4.0 µm exhibits a tunneling current in the microampere range, a zero‐bias responsivity of −1.31 A/
Aboubacar Savadogo +8 more
wiley +1 more source
160 GHz Schottky Diodes from Solution‐Processed IGZO
Small, Volume 22, Issue 10, 17 February 2026.A simple, scalable method for contact engineering of planar asymmetric nanogap electrodes enables the development of Schottky diodes with a cut‐off frequency of 160 GHz. Applying these diodes to radio‐frequency rectifying circuits yields output voltages in the range of 0.3–0.74 volts.
Lazaros Panagiotidis +17 more
wiley +1 more source
A High-Efficiency RF Harvester with Maximum Power Point Tracking
Proceedings, 2018 This paper presents the implementation of a high-efficiency radiofrequency (RF) harvester, which consists of a rectenna and a maximum power point tracker (MPPT).
Manel Gasulla +5 more
doaj +1 more source
A novel 24 GHz circularly polarised metasurface rectenna
IET Microwaves, Antennas & Propagation, 2023 A novel 24 GHz circularly polarised metasurface rectenna for wireless power transmission is designed in this study. Based on experimental measurements and retro‐simulation, an effective approach is proposed to extract the parasitic parameters of a ...
Wei Huang +4 more
doaj +1 more source
A Comprehensive Review of Battery‐Free Energy Efficient RF and Microwave Systems
Journal of Engineering, Volume 2026, Issue 1, 2026.Battery‐free radiofrequency (RF) and microwave systems have emerged as a promising solution for enabling long‐lifetime, maintenance‐free wireless sensing and communication platforms by eliminating conventional battery dependence. These systems operate by harvesting ambient or dedicated electromagnetic energy, converting it to usable electrical power ...
Stella N. Arinze +2 more
wiley +1 more source
Energies, 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
Harnessing the Power of 2D Materials for Flexible Energy Harvesting Applications
Carbon Energy, Volume 7, Issue 12, December 2025.Ambient energy harvesting offers transformative potential for sustainable energy solutions, with 2D materials emerging as a game‐changing platform due to their atomic‐scale thickness, tunable properties, and versatility. This review explores the mechanisms, advantages, and challenges of 2D material–based energy harvesting technologies, emphasizing ...
Muhammad Zubair +2 more
wiley +1 more source
Vortex rectenna powered by environmental fluctuations [PDF]
Nature Communications, 2018 AbstractA rectenna, standing for a rectifying antenna, is an apparatus which generates d.c. electricity from electric fluctuations. It is expected to realize wireless power transmission as well as energy harvesting from environmental radio waves. To realize such rectification, devices that are made up of internal atomic asymmetry such as an asymmetric ...
J. Lustikova +9 more
openaire +3 more sources
FlexMat, Volume 2, Issue 4, Page 493-509, December 2025.This paper presents a comprehensive review of radio frequency (RF)‐based wireless charging technologies for flexible electronics. In particular, we (i) provide an overview of wireless charging approaches, (ii) investigate the fundamental RF charging principles, covering rectenna design, impedance matching, RF‐to‐DC conversion, and power management, and
Qu Luo +6 more
wiley +1 more source