Open AccessComment on ‘Wide‐angle broadband microwave metamaterial absorber with octave bandwidth’
Author(s) -
Kundu Debidas,
Mohan Akhilesh,
Chakrabarty Ajay
Publication year - 2017
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2016.0743
Subject(s) - broadband , microwave , optics , bandwidth (computing) , metamaterial , electromagnetic radiation , physics , octave (electronics) , reflection (computer programming) , materials science , computer science , telecommunications , quantum mechanics , programming language
This comment demonstrates that in a recent study by Bhattacharyya et al. , a linear reflective polarisation converter is erroneously interpreted as broadband absorber. It is clearly shown that the incident electromagnetic wave is reflected with its orthogonal polarisation state due to which co‐polarised reflection is reduced. Total absorption, when both the co‐ and cross‐polarised reflected components are considered, is less than 20% in the operating band claimed by the authors.