DESIGN OF ANGLE-INSENSITIVE TRIPLE-BAND METAMATERIAL ABSORBER FOR ENERGY HARVESTING AT MICROWAVE FREQUENCIES
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Date
2024-04-19
Authors
Kaidarov, Sanzhar
Journal Title
Journal ISSN
Volume Title
Publisher
Nazarbayev University School of Engineering and Digital Sciences
Abstract
In the modern world there is an abundance of unused, free ambient energy, which includes
energy that is dispersed from wi-fi and internet usage. Harvesting this energy is of importance, as it can provide charge to self-sustainable, low-power application such as IoT devices. In this paper, angle-incensitive triple-band meta-material absorber was designed for resonant frequencies at 2.45GHz, 5GHz, 6GHz with an average absorption efficiency of 80%, 95% and 99% for the angle of incidence θ from 0° to 60° respectively. The simulation was done in CST studio suite, and the simulated absorber shows
good absorption qualities. Implemented design was a 9 by 9 unit cell metamaterial grid de-
ployed using RO4350B substrate and it showed some agreement with the simulations. Moreover, the design showed a better absorption qualities, covering a wider frequencies range than expected. Experimental absorption is perfect over the shifted frequency bands.
Description
Keywords
Metamaterial, RF, Energy-Harvesting, Type of access: Restricted
Citation
Kaidarov, S. (2024). Design of Angle-Insensitive Triple-band Metamaterial Absorber for Energy Harvesting at Microwave Frequencies. Nazarbayev University School of Engineering and Digital Sciences