Table 1 Metasurface 90% absorption bandwidth with and without dielectric material under normal and oblique incidence.
Polarization | Incident Angle (°) | 90% Absorptivity with dielectric material | 90% Absorptivity without dielectric material | ||
|---|---|---|---|---|---|
Frequency (GHz) | BWa (%) | Frequency (GHz) | BWa (%) | ||
TE | 0 | 4.6–12.2 | 7.6 | 7.8–13.9 | 6.1 |
10 | 4.6–11.3 | 6.7 | 7.8–13.5 | 5.7 | |
20 | 4.6–10.8 | 6.2 | 7.8–9.5 | 1.7 | |
30 | 4.6–10.4 | 5.8 | 7.8–9.0 | 1.2 | |
40 | 4.6–10.4 | 5.8 | 7.8–8.5 | 0.7 | |
TM | 0 | 4.6–12.2 | 7.6 | 7.8–13.9 | 6.1 |
10 | 4.6–12.2 | 7.6 | 7.8–9.5 | 1.7 | |
20 | 4.6–12.2 | 7.6 | 7.8–9.5 | 1.7 | |
30 | 4.6–12.2 | 7.6 | 7.8–9.5 | 1.7 | |
40 | 4.6–12.2 | 7.6 | 8.0–9.0 | 1.0 | |
50 | 4.6–12.2 | 7.6 | N/A | N/A | |
60 | 4.6–12.2 | 7.6 | N/A | N/A | |
