Cell phone signal amplifier board antenna signal strong reason：In terms of signal coverage, the large plate antenna is the “king” like existence! Whether in tunnels, deserts, or mountains and other long-distance signal transmission scenes, you can often see it. Why is the big plate antenna so strong? What scenarios can it be applied to? Let’s watch below.
Omnidirectional Antenna VS Directional Antenna
The large plate antenna is actually a very high gain directional antenna:
The antenna has different radiation or receiving capabilities for different directions in space, which is the directivity of the antenna. According to the different directivity, the antenna has two kinds of omnidirectional and directional.
Omnidirectional antenna:
Omnidirectional antenna, that is, in the horizontal pattern as 360°uniform radiation, that is, the commonly said non-directional, in the vertical pattern as a certain width of the beam, in general, the smaller the lobe width, the greater the gain.
Directional antenna:
Directional antenna, in the horizontal pattern of a certain range of angular radiation, that is, the common said directivity, in the vertical pattern of a certain width of the beam, the same as omnidirectional antenna, the smaller the lobe width, the greater the gain. The directional antenna is generally used in the communication system for long communication distance, small coverage area, large target density and high frequency utilization.
Working principle
Omnidirectional antenna will send signals in all directions, both front and back can receive the signal, the directional antenna is like a bowl of reflection surface behind the antenna mask, the signal can only be transmitted to the front, the signal shot to the back is blocked by the reflector and reflected to the front, strengthening the signal strength in front.
Select according to the scene
For antenna selection, if multiple stations need to be satisfied and these stations are distributed in different directions of the AP, omnidirectional antennas need to be used. Such as: houses, shops, parking lots.
If it is concentrated in one direction, it is recommended to use a directional antenna; Such as: tunnels, deserts, mining areas, corridors.
Installation Precautions
The front of the large plate antenna faces the direction of the remote site and is installed as high as possible, and the distance of sight between the antenna and the site is as good as possible (visible to the naked eye, avoiding obstacles in the middle).
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Post time: Sep-15-2023