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Antenna selection of rural base station in Suburb

Author:Xia Men Lineyi Antenna & Connector Click: Time:2022-06-28 10:52:03

Characteristics of application environment: the base stations are sparsely distributed, the traffic volume is small, the requirements for data services are relatively low, and the coverage is wide. In some places, there is only one base station around, and coverage becomes the most concerned object. At this time, antenna selection should be considered in combination with the area to be covered around the base station.

Antenna selection principle:

Direction pattern selection: if the base station is required to cover the surrounding area and there is no obvious directionality, and the traffic around the base station is scattered, omnidirectional base station coverage is recommended. At the same time, it should be noted that the coverage distance of the omnidirectional base station is not as far as that of the directional base station due to the small gain. At the same time, attention shall be paid to the influence of the tower on the coverage during the installation of the omnidirectional antenna, and the antenna must be vertical to the ground plane. If the local authority has a further coverage requirement for the coverage distance of the base station, it needs to use a directional antenna to achieve it. In general, directional antennas with horizontal half power beam width of 90 °, 105 ° and 120 ° shall be adopted.

Selection of antenna gain: antenna gain is selected according to coverage requirements. It is recommended to select directional antenna with higher gain (16-18dbi) or omnidirectional antenna with 9-11dbi in suburban and rural areas.

Selection of down tilt mode: there are few down tilt adjustments for antennas in rural areas, and the adjustment range and characteristics of down tilt are not high. It is recommended to select mechanical down tilt antennas; At the same time, when the antenna is hung above 50m and there is coverage requirement at the near end, the antenna filled with zero point can be preferentially selected to avoid the black problem under the tower.

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