Design of broadband electromagnetic absorber using resistive Minkowski loops

Author

Niaz, M.W. ; Bhatti, R.A. ; Majid, I.

Author_Institution

Centre of Excellence in Sci. & Appl. Technol. (CESAT), Islamabad, Pakistan

fYear

2013

fDate

15-19 Jan. 2013

Firstpage

424

Lastpage

428

Abstract

Lossy frequency selective surfaces have been used to design thin and broadband electromagnetic absorbers. Unit cell of the FSS is based on two concentric Minkowski loops. In the first design, the Minkowski loops are loaded with lumped resistors in different configurations. In the second design, Minkowski loops are designed using the concept of resistive sheets. Resistive Minkowski loops offer very wide bandwidth from 2.2GHz to 9.4GHz and 4.5GHz to 17GHz for reflection loss greater than 10dB. Thickness of the absorber with resistive Minkowski loops is 0.09λ.

Keywords

electrical resistivity; electromagnetic wave absorption; electromagnetic wave reflection; frequency selective surfaces; resistors; FSS; bandwidth 2.2 GHz to 9.4 GHz; bandwidth 4.5 GHz to 17 GHz; broadband electromagnetic absorber design; concentric Minkowski loop design; lossy frequency selective surface; lumped resistor; reflection loss; resistive Minkowski loop; resistive sheet; thin electromagnetic absorber; unit cell; Absorption; Bandwidth; Broadband communication; Frequency selective surfaces; Resistors; Surface impedance; Electromagnetic absorber; minkowski loop; resistive frequency selective surface; surface resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Sciences and Technology (IBCAST), 2013 10th International Bhurban Conference on

Conference_Location

Islamabad

Print_ISBN

978-1-4673-4425-8

Type

conf

DOI

10.1109/IBCAST.2013.6512194

Filename

6512194