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Parameters of FEF (fringing electric field) sensors in Figure 6.
| Pattern | Area (cm) | Electrode Spacing (mm) | Electrode Width (mm) | Number of Fingers or Loops |
|---|---|---|---|---|
| Square-shaped | 1 × 1 | 1 | N/A | N/A |
| Square-shaped | 1.5 × 1.5 | 1 | N/A | N/A |
| Square-shaped | 2 × 2 | 1 | N/A | N/A |
| Interdigitated | 1 × 1 | 1 | 1 | 5 |
| Interdigitated | 1.5 × 1.5 | 1 | 1 | 8 |
| Interdigitated | 2 × 2 | 1 | 1 | 10 |
| Spiral | 1 × 1 | 1 | 1 | 3 |
| Spiral | 1.5 × 1.5 | 1 | 1 | 4 |
| Spiral | 2 × 2 | 1 | 1 | 5 |
