Table 4.
Comparison table.
| Ref. | MPA | Size | Substrate | Frequency Band | Resonant Frequency | Absorption % | Polarization Insensitivity | Application | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Simulated | Measured | Simulated | Measured | |||||||
| [13] | CSRR | 10 × 10 × 1.6 | FR-4 | K | 21.6 24.04 |
21.55 N/A |
99.9% 99.9% |
99.68% N/A |
Yes | Absorber and sensor |
| [14] | Metaprogrammable analog differentiation | -- | -- | C | 5.05-5.4 | 5.05-5.4 | ≈100% | ≈100% | N/A | Absorber and analog differentiator |
| [24] | Wrenched square shape | 10.4 × 10.4 × 1 | FR-4 | S, X, Ku | 3.2 5.32 11.15 16.73 |
3.43 5.18 11.1 16.69 |
95.75% 95.93% 97.69% 95.64% |
94.56% 96.41% 97.98% 96.67% |
Yes | Absorber |
| [45] | SSRR | 10 × 10 × 1 | FR-4 | S, X, Ku | 3.4, 9.6, 13 |
≈3.3 9.6 ≈12.9 |
99.6, 99.1, 99.1 |
99.5% ≈95% 99% |
Yes | Absorber |
| [46] | Eight identical 7-shapes | 8 × 8 × 0.4 | polyimide | X, Ku | 8.5, 13.5, 17 |
8.7 14.1 17.6 |
99.9% 99.5% 99.9% |
96% 97% 94% |
Absorber | |
| [47] | V-shaped | 8 × 8 × 1.6 | FR-4 | Ku, K | 15.52, 27.24 |
15.6 N/A |
98.38% 90.7% |
≈96% N/A |
No | Absorber |
| [48] | T-shaped | 8.5 × 8.5 × 0.2403 | polyimide | Ku, K | 16.77 30.92 |
16.85 30.79 |
98.7% 99.3% |
98.6% 96.2% |
No | Absorber |
| [49] | Diagonal slot patch | 16 × 16 × 1.6 | FR-4 | Ku | 12.45 14.18 |
12.31 13.97 |
99.73% 99.87% |
99% 99% |
No | Absorber |
| [27] | Fourfold resonator | 9 × 9 × 1.6 | FR-4 | Ku | 13.62 16.30 |
13.6 16.5 |
99.99% 99.99% |
99.9% 99% |
Yes | Absorber and sensor |
| Proposed | SSRR | 10 × 10 × 1.6 | FR-4 | Ku, K | 12.62 14.12, 17.53, 19.91 |
12.4 14.11 17.56 20.1 | 97% 99.51% 99% 99.5% |
98.4% 97.6% 93% 96.6 |
Yes | Absorber and sensor |