Efficient metasurface for electromagnetic energy harvesting with high capture efficiency and a wide range of incident angles

Ahmed Ghaleb Amer, Abdulrahman and Sapuan, Syarfa Zahirah and Adel Y. I. Ashyap, Adel Y. I. Ashyap (2023) Efficient metasurface for electromagnetic energy harvesting with high capture efficiency and a wide range of incident angles. JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS. pp. 1-13.

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Abstract

This work introduces a miniaturized metasurface (MS) energy harvester operating at 5.54 GHz with a high capture efficiency and a wide incident angle. The proposed MS structure is comprised of an ensemble of electric ring resonator (ERR) array. The MS’s impedance is engineered to match free space, so that the incident electromagnetic (EM) power is efficiently captured with minimal reflection and delivered to the optimal resistor load through an optimally positioned metallic-via. According to the simulation results obtained by CST Microwave Studio, the proposed MS harvester achieves higher conversion efficiency of about 91% under normal incidence and more than 78% across a wider incident angle up to 60°. In order to verify the simulation results, a 5×5 cell array of the proposed MS harvester is fabricated and tested. The simulation and experimental results are well match. The proposed MS configuration can be attractive for high-efficiency and compact wireless sensor network harvesting systems.

Item Type:	Article
Uncontrolled Keywords:	Metasurface (MS); electromagnetic (EM) energy harvesting; wide incident angle; high capture efficiency; WPT
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Electrical and Electronic Engineering > Department of Electrical Engineering
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	21 Nov 2023 01:43
Last Modified:	21 Nov 2023 01:43
URI:	http://eprints.uthm.edu.my/id/eprint/10404

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