Ur Rahman, S.Ullah, H.Cao, Q.Kabir Khan, M.Ullah, Naveed2023-02-212023-02-212021-05-240920-5071http://hdl.handle.net/10679/8083https://doi.org/10.1080/09205071.2020.1868352In a recently published paper, Chetan Barde et al. [Barde C, Choubey A, Sinha R. A set square design metamaterial absorber for X-band applications. J Electromagn Waves Appl. 2019:1–14.] have proposed a wideband metamaterial absorber and have attempted to elaborate reflection theory for the absorptivity. They have claimed a wideband absorption rate due to ignorance of cross-polarization component of the reflected wave. They have erroneously interpreted a linear reflective polarization converter as a wideband absorber.engrestrictedAccessarticle3581020102400061101890000110.1080/09205071.2020.18683522-s2.0-85099923451