Broadband optically transparent microwave absorber made of interdigital metasurfaces in rotational symmetry with a single air spacer
Longxin Wan,
Xiaofei Xu,
Kun Duan
et al.
Abstract:A broadband optically transparent metasurface microwave absorber (MMA) is designed and experimentally studied. The MMA is made of two indium tin oxide (ITO) resistive films deposited on two transparent polyethylene terephthalate (PET) substrates respectively, between which is sandwiched a single air spacer. The top ITO resistive film is etched with periodic interdigital metasurface patterns in rotational symmetry, while the bottom ITO resistive film is an integrated sheet with a low resistance working as the b… Show more
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