Optimization practice of directional dual-polarized electrically tunable antenna in high-speed rail scenarios
- Date： 2025-09-10
Optimization practice of directional dual-polarized electrically tunable antenna in high-speed rail scenarios
- Date：2025-09-10
Detail
The high-speed rail scenario faces challenges from Doppler frequency shift and rapid switching. The directional dual-polarized electrically tunable antenna achieves beam deflection and maximizes coverage energy through "roll" attitude design and multi-dimensional down tilt adjustment technology. For example, the integrated pizza antenna jointly released by China Mobile and Huawei has improved signal continuity by 40% on high-speed rail lines, solving the "black spot under the tower" problem. Its electrically tunable function supports dynamic adjustment from -10° to +10°, adapting to the coverage requirements of high-speed rail at speeds of up to 350km/h.
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