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Comment on "Design and Characterization of an Ultrabroadband Metamaterial Microwave Absorber"
Journal article   Open access  Peer reviewed

Comment on "Design and Characterization of an Ultrabroadband Metamaterial Microwave Absorber"

Saeed Ur Rahman, Habib Ullah, Muhammad Sajjad, Muhammad Irshad khan and Qunsheng Cao
IEEE photonics journal, Vol.12(2), pp.1-4
01/04/2020
DOI: https://doi.org/10.1109/JPHOT.2020.2966258

Abstract

Absorption Broadband communication Geometry Metamaterials metasurface Microwave photonics Polar polarization conversion Resonant frequency
The authors have proposed an Ultrabroadband Metamaterial Microwave Absorber. The authors have claimed that the proposed structure is metamaterial absorber. We have recognized that the designed structure is not a metamaterial absorber because of ignorance of cross-polarized reflection coefficient. The designed structure is polarization convertor because the proposed unit cell has an-isotropic geometry.
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https://doi.org/10.1109/JPHOT.2020.2966258View
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