Open Access

Table 1

Typical microwave absorption metamaterials.

Materials Thickness (mm) Structures Absorption bandwidth [GHz] (RL ≤ −10 dB) References
ITO/PET/PMMA 3.85 Windmill 8–18 [27]
ITO 5.5 Square ring 5.5–19.7, 22.5–27.5 [29]
ITO 5 Bowtie 5.8–12.2 [39]
Carbon black 17 Square 2.35–18 [25]
Carbon About 12 pyramidal 2–18 [28]
Al2O3 1.7 Square About 11–12 [40]
HEA 20 chiral 4–18 [34]
CIP/PU & FSA ribbons, CF 1 Orthogonal structure 9.76–14.46 Present work

Comments: ITO, indium tin oxide; HEA, high entropy alloys, PET, polyethylene glycol terephthalate; PMMA, polymethyl methacrylate.

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