Abstract
This paper presents a high Polarization and wide angle independent metamaterial absorber (MA) based on triple hexagonal shaped resonators. This metamaterial unit cell absorber possesses a nearly wide angle perfect absorption of incidence wave and polarization independence. The absorption is occurred in three different frequencies. The absorptivity is as high as 98%, 93% and 94%, at 3.5(GHz), 4.7(GHz) and 6.6(GHz), respectively. The simulation of the simulation agrees well with the experiments, regarding to return loss and absorption. The important features of this method are simple fabrication of metamaterial absorber and maximum absorption in three frequencies. The proposed metamaterial absorber has wide applications such as thermal detector, stealth technology and imaging. Moreover, a very good agreement between simulation and measurement results has been observed.
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