Polarization-insensitive metamaterial absorber for C band applications

This paper presents the polarization-insensitive metamaterial absorber. The structure incorporates circular and squares rings that are printed on FR4 dielectric substrate. This structure gives two absorption-peaks one at 3.644 GHz and other at 3.814 GHz simulated with peaks absorbance of 97.26% and 97.03% respectively. It works in the C-Band. It gives the maximum absorption for both TE-modes and TM-modes. The proposed structure is polarization-independent absorption. The study of absorption of proposed structure has been examined for different polarization angles. The structure have many applications like FSS Earth station, Stealth technology used in battle-field and UWB applications.