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Dual‐band aperture‐coupled rectenna for radio frequency energy harvesting
Author(s) -
Mohd Noor Faza S.,
Zakaria Zahriladha,
Lago Herwansyah,
Meor Said Maizatul A.
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21651
Subject(s) - rectenna , multi band device , electrical engineering , radio frequency , rectifier (neural networks) , antenna (radio) , aperture (computer memory) , energy harvesting , rf power amplifier , voltage , optoelectronics , power (physics) , materials science , physics , engineering , computer science , acoustics , rectification , stochastic neural network , cmos , quantum mechanics , machine learning , recurrent neural network , artificial neural network , amplifier
The article presents a dual‐band aperture‐coupled rectenna for radio frequency (RF) energy harvesting at 2.45 and 5 GHz application. The rectenna consists of a dual‐band π‐shaped slot‐etched aperture‐coupled antenna, designed at the lower substrate of two FR4 substrate layers and a dual‐band rectifier. The proposed antenna design also introduces the harmonic suppression of third‐ and higher order harmonics, ranging from 6 up to 10 GHz from the asymmetrical stubs design at the transmission feedline. The dual‐band rectifier is designed to operate at 2.45 and 5 GHz frequency, successfully achieving high conversion efficiency at 68.83% and 49.90% with the optimum load resistor of value 700 Ω and 1.1 kΩ. The minimum DC voltage of 0.167 and 0.236 V with 0 dBm RF input power can be increased when greater RF power is being applied to it, increasing its flexibility to cater various low‐power applications.