Results 51 to 60 of about 5,325 (221)

Rectenna related atmospheric effects [PDF]

open access: yes, 1980
Possible meteorological effects arising from the existence and operations of a solar power satellite (SPS) system rectenna are examined. Analysis and model simulations in some chosen site situations and meteorological conditions indicate that the ...
Lee, J.
core   +1 more source

Harnessing the Power of 2D Materials for Flexible Energy Harvesting Applications

open access: yesCarbon 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

Enabling flexible, wearable, and implantable electronics with radio frequency‐based wireless charging: Fundamentals, challenges, and emerging applications

open access: yesFlexMat, 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

Dual Band Rectenna for Wireless Energy Harvesting in the 2.40 GHz and 5.38 GHz

open access: yesTecnoLógicas, 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

Societal assessment overview [PDF]

open access: yes, 1980
The decision to proceed with SPS depends on a political determination that commitment of the economic, institutional, and social energies required for its implementation is a worthwhile investment.
Bloomquist, C. E.
core   +1 more source

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

A novel 24 GHz circularly polarised metasurface rectenna

open access: yesIET 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 theoretical study of microwave beam absorption by a rectenna [PDF]

open access: yes, 1980
The rectenna's microwave power beam absorption limit was theoretically confirmed by two mathematical models descriptive of the microwave absorption process; first one model was based on the current sheet equivalency of a large planar array above a ...
Ott, J. H., Rice, J. S., Thorn, D. C.
core   +2 more sources

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

A High-Efficiency RF Harvester with Maximum Power Point Tracking

open access: yesProceedings, 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

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