Research Article
Propagation at mmW Band in Metropolitan Railway Tunnels
| Frequency | 24.2 GHz | Transmitted power | 5.4 dBm | Tx signal | Continuous wave |
| Tx and Rx antenna | Horn antenna, 15.2 dBi | HPBW antenna | -plane 28.3° | -plane 27.9° | Antenna polarization | Horizontal and vertical |
| Tunnel cross-section | Arched | Tunnel dimensions | 6.9 m × 4.9 m | Train speed | 5 km/h |
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