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In this paper, a novel broadband flexible metamaterial absorber is proposed. The unit cell of the absorber is consisted of loaded high-impedance surfaces (HIS) on a flexible polyethylene terephthalate (PET) substrate and a metallic ground plane seperated by a dielectric layer. Losses in the high-impedance surface are introduced by printing the periodic pattern through resistive inks and hence avoiding...
A novel broadband metamaterial absorber based on cross dumbbell-shaped structure and loaded lumped resisters is proposed in this paper, which consists of three metallic layers separated by two dielectric substrates. Five metallic vias connect three metallic layers. This absorber can achieve 90% absorption from 5 to 12.1 GHz under the normal incidence, equivalent to a relative absorption bandwidth...
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