Comments on “A set square design metamaterial absorber for X band applications”

Abstract

In 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.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by National Natural Science Foundation of China: [Grant Number 61871219].

Notes on contributors

Saeed Ur Rahman

Saeed Ur Rahman has received BS degree in electrical electronics engineering from COMSAT University, Pakistan in 2013 and MS degree in electronics engineering from Capital University of Science and Technology (CUST), Pakistan in 2016. He has PhD completed from Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China. Recently, he is working as postdoctoral research fellow at NUAA. His research interests include electromagnetics and antennas especially in the design and optimization of antenna array, micro-strip patch antennas, mmW antennas, ultra wideband antennas and meta-material absorbers, FSS, polarization conversation.

Habib Ullah

Habib Ullah was born 1991 and he received BS degree in electronics engineering from Hazara University, Pakistan in 2013 and MS degree in electronics engineering from Beihang University, China in 2017. Recently he is pursuing his PhD from Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China under the supervision of prof.

Qunsheng Cao

Qunsheng Cao, His research interests include electromagnetics and antennas.

Muhammad Kabir Khan

Muhammad Kabir Khan was born in 1988 and completed BS and Master degree from the COMSATs University Pakistan in 2011 and 2016 respectively. He is pursuing his PhD from Southwest Jiaotong University China. His research interests include electromagnetics and antennas especially in the design and optimization of antenna array, micro-strip patch antennas, ultra wideband antennas.

Naveed Ullah

Naveed Ullah has completed BS degree from the University of Engineering and Technology (UET), Peshawar and Master degree from Northwestern Polytechnical University, China. Recently he is pursuing his PhD from the özyeğin University istanbul, Turkey. His research interests include electromagnetics and antennas especially in the design and optimization of antenna array, RF circuit design, wideband antennas.