Research Article
A Contact-Less Electrically Small Antenna Sensor for Retinal Cancer Cell Detection
Table 5
Comparison of the proposed microwave antenna sensor with other diagnosis systems.
| | Ref. (year) | Antenna size (W × L × H) (mm3) | Operating frequency (GHz) | Biodegradable substrate | Application | Method | Contact-less |
| | [28] (2019) | 114 × 80 × 1.6 | 2.4 | No | Bone fracture diagnosis | Microwave imaging | No | | [30] (2020) | 30 × 40 × 1.016 | 3–7 | No | Bone health evaluation | Time-domain analysis | Yes | | [31] (2021) | 37 × 37 × 0.7 | 2.4 | No | Salinity and sugar concentration measurement | Frequency shifting | No | | [12] (2022) | 45 × 7.87 × 0.46 | 2.4 | No | Chest wall movement detection | Frequency shifting | No | | [32] (2022) | 50 × 30 × 0.8 | 3 | No | Dielectric constant measurement | Frequency shifting | No | | [33] (2022) | 18.2 × 22 × 1.6 | 5.7 | No | Glucose monitoring | Time-domain analysis | Yes | | This work | 8 × 16.2 × 0.35 | 2.413 | Yes | Ocular tumor detection | Frequency shifting and PCA | Yes |
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