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Design Parameters of Dual-Frequency Array
| Parameter | Transmission layer | Receiving layer |
|---|---|---|
| Center Frequency | 2.25 MHz | 30 MHz |
| Material | PMN-PT | PMN-PT |
| Impedance (MRayl) | 32 | 32 |
| Width (mm) | 0.35 | 0.13 |
| Length (mm) | 6 | 1 |
| Thickness (μm) | 300 | 65 |
| Matching/Isolation Material | 8 sub-elements | 32 elements |
| Impedance (MRayl) | 650 | 160 |
| Matching Thickness (μm) | 350 | 130 |
| Isolation layer Impedance (MRayl) | - | 3.5 |
| Isolation layer Thickness (μm) | - | 12.5 |
