Research Article
Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve
Table 2
Comparison between different sensors.
| | Reference | Methods | Specifications | | Freq (GHz) | Q-factor | S-parameter (dB) | Sensitivity |
| | [20] | Circular split ring resonator | 3.68 | 409 | -35.0 (S21) | 39.1 | | [21] | Omega shape resonator | 1.9 | 12 | -6.0 (S21) | — | | [18] | Rectangular open-loop resonator | 2.13 | 143 | -26.1 (S11) | 48.8 | | This work (third pole) | Sierpinski fractal curve resonator | 4.13 | 445.23 | -20.6 (S11) | 70.3 |
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