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A single layer wideband metasurface absorber for electromagnetic interference minimization in Ku-band applications

Published online by Cambridge University Press:  25 June 2021

Yogita Khanna  and
Y. K. Awasthi Open the ORCID record for Y. K. Awasthi [Opens in a new window]
Yogita Khanna
Affiliation:
Electronics and Communication Engineering, Manav Rachna University, Faridabad, HR 121004, India
Y. K. Awasthi*
Affiliation:
Electronics and Communication Engineering, Manav Rachna International Institute of Research and Studies, Faridabad, HR 121004, India
*
Author for correspondence: Y. K. Awasthi, E-mail: [email protected]
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Abstract

In this paper, a wideband ultrathin metasurface absorber is investigated. The proposed absorber comprises a periodic array of a unit cell ring structure. The ring structure and patch inside are tuned to realize the desired frequency bandwidth. The structure has a frequency bandwidth of 7.4 GHz with a center frequency of 15 GHz and fractional bandwidth of 50%. Simulated and measured results show that the absorption at normal incidence is above 90% in the frequency range of 11.3–18.7 GHz. Furthermore, the thickness of the structure is 1.6 mm. The physical mechanism of the metasurface absorber has been analyzed and justified experimentally.

Keywords

Broadband absorbersmicrowave absorbersradarradome
Type
Metamaterials and Photonic Bandgap Structures
Information
International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 5 , June 2022 , pp. 573 - 579
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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