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Backscattering cross-section from a metamaterial coated sphere covered with a metasurface

Published online by Cambridge University Press:  22 April 2021

Farah R. Abbasi ,
Z. A. Awan Open the ORCID record for Z. A. Awan [Opens in a new window]  and
Arshad Hussain
Farah R. Abbasi
Affiliation:
Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan
Z. A. Awan*
Affiliation:
Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan
Arshad Hussain
Affiliation:
Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan
*
Author for correspondence: Z. A. Awan, E-mail: [email protected]
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Abstract

An analysis about the backscattering characteristics of a metamaterial coated magnetodielectric sphere covered with a metasurface has been presented. The effects of various types of metamaterial coatings and surface reactances of lossless metasurface upon the backscattering cross-section of a metamaterial coated magnetodielectric sphere covered with a metasurface have been studied. It is shown that the negligible backscattering cross-section from a double near-zero metamaterial coated magnetodielectric sphere can be enhanced significantly by using specific types of lossless metasurfaces. These types of enhanced backscattering cross-section find applications in the radar detection problems. The proposed theory is also extended to the lossy double negative metamaterial coated magnetodielectric sphere covered with a lossless metasurface. During the study, it is found that for a specific part of the lossy double negative metamaterial bandwidth, two specific types of lossless metasurfaces can be used to reduce the backscattering cross-section as compared to the backscattering cross-section of a lossy double negative metamaterial coated magnetodielectric sphere without metasurface.

Keywords

Backscatteringmagnetodielectricmetamaterialmetasurfacesurface impedance
Type
Metamaterials and Photonic Bandgap Structures
Information
International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 4 , May 2022 , pp. 445 - 455
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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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