Citation

Ullah, Najeeb and Lee, Lini and Islam, Md. Shabiul and Islam, Mohammad Tariqul (2024) A Compact, Polarization-insensitive, Double Negative (DNG) Perfect Metamaterial Absorber for Electromagnetic Energy Harvesting Applications. In: 2024 2nd Asia Conference on Electronics Engineering (ACEE), 19-21 April 2024, Singapore, Singapore.

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Abstract

This paper presents the construction and investigation of a compact electromagnetic metamaterial (MM) absorber that is polarization-insensitive and provides wide-angle coverage. The absorber is designed specifically for energy harvesting purposes. The proposed MM absorber is created on an FR4 dielectric substrate and consists of three split-ring resonators (SRRs). The proposed structure demonstrates a significant absorption rate of 98% and 99% at two distinct resonance frequencies: 4.63 GHz and 5.827 GHz, respectively. Furthermore, the absorber can provide a broad absorption range for various polarization angles, extending up to 45°. Most incident EM energy is primarily dissipated through resistors rather than the dielectric substrate. The device is characterized by negative permittivity, permeability, and refractive indexes within the frequency range of 4.5 GHz to 5 GHz, which classifies it as a Double Negative material (DNG). The proposed device can potentially enhance the conversion of incident energy into usable electrical power, resulting in increased efficiency.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Metamaterial perfect absorber, electromagnetic energy harvesting
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Nurul Iqtiani Ahmad
Date Deposited:	28 Feb 2025 04:19
Last Modified:	28 Feb 2025 04:19
URII:	http://shdl.mmu.edu.my/id/eprint/13546

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