Ultra Thin Resistively Loaded FSS Absorber For Polarisation Independent Operation At Large Incident Angles

Cahill, Robert and Zabri@Suhaimi, Siti Normi and Schuchinsky, Alexander G. (2014) Ultra Thin Resistively Loaded FSS Absorber For Polarisation Independent Operation At Large Incident Angles. In: The 8th European Conference on Antennas and Propagation (EuCAP 2014), 6-11 April 2014 , The Hague.

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Abstract

In this paper we report on a resistively loaded Frequency Selective Surface (FSS) absorber design which is insensitive to the polarization of microwave signals incident at angles of 45º ± 5º. The metal backed periodic structure is composed of an array of conductive rectangular loops, each loaded with a resistor at the center of the four sides. The geometry of the absorber and the resistance value of the vertical and horizontal resistor pairs are carefully chosen so that the structure presents a real impedance of 377 Ohms at the center operating frequency for both TE and TM polarized waves incident at 45º. Numerical predictions of the electromagnetic scattering from three different absorbers, designed to work at X band, are used to investigate the effect of thickness and resistance value on the reflectivity bandwidth and angular sensitivity.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Microwave absorbers, Radar absorbing material, Frequency selective surface (FSS), High impedance surface (HIS)
Divisions:	Faculty of Electronics and Computer Engineering > Department of Telecommunication Engineering
Depositing User:	SITI NORMI ZABRI @ SUHAIMI
Date Deposited:	26 Jan 2015 02:55
Last Modified:	28 Jun 2021 14:35
URI:	http://eprints.utem.edu.my/id/eprint/14055
Statistic Details:	View Download Statistic

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