Research Article
Design of Microwave Antenna Array for Imaging of Multiphase Flows in Polypropylene Pipes
Table 4
Main performances of both horizontal and vertical polarization arrays.
| | − | HP-8 | HP-16 | HP-32 |
| | S21A (dB) | −21.5 | −16.7 | — | | Cut-off frequency (GHz) | 1.47 | 1.45 | — | | Dimensions (cm2) | 41.4 × 41.4 | 49.9 × 49.9 | 89.6 × 89.6 | | − | VP-8 | VP-16 | VP-32 | | S21A (dB) | −23.15 | −21.19 | −18.6 | | Cut-off frequency (GHz) | 1.28 | 1.17 | 1.16 | | Dimensions (cm2) | 52.7 × 52.7 | 52.7 × 52.7 | 68.3 × 68.3 |
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