Figure 5

Fabricated metamaterial absorber, measured reflectances, and simulated results via Comsol multiphysics and HFSS using 3D metapatterns with \(d_p\) = 200 \(\upmu\)m. Fabricated (a) top and (b) intermediate carbon metapatterns, and (c) total structure of the proposed metamaterial absorber. (d) Measurement system. (e) Measured and simulated reflectances for the normal incidence. Measured and simulated reflectances for TE polarization with incident angles (f) \(\theta =45^\circ\) and (g) \(\theta =60^\circ\). Measured and simulated reflectances for TM polarization with incident angles (h) \(\theta =45^\circ\) and (i) \(\theta =60^\circ\).