Fiberglass antenna

What is the role of glass fiber reinforced plastic, is it better for indoor value or outdoor value? A lot of people will wonder if they use it indoors, if the house will become a cell tower. Just kidding, of course. Because the vertical Angle is small, the signal can only be transmitted at 6 to 8 degrees horizontally, so the fiberglass antenna is widely used for wireless coverage in the plain area, wireless coverage in the same horizontal position environment, and wireless coverage in the same horizontal position environment, if the frame is in a higher position,

Are pursuing high antenna gain. However, in indoor household or industrial routers, such as Cisco, Huawei, D-LINK, etc., the antenna selection is generally 2-5dBi, and high-gain antennas are rarely used. This is because, on the one hand, the high-gain antenna is generally large in size and inconvenient to install; on the other hand, the high-gain omnidirectional antenna, although omnidirectional radiation on the horizontal plane, has a narrow radiation Angle coverage on the vertical plane (small lobe width), which is counterproductive within a relatively short communication distance (explained in the paper). Therefore, antennas with gains below 8dBi are generally selected for short-range coverage in the room.

When using a high-gain FRP antenna, it is necessary to pay attention to the radiation pattern of the FRP antenna, especially the lobe width of the vertical plane. In the outdoor where the communication distance is required to be very far, high-gain FRP antennas are usually used, and the radiation Angle on the vertical surface of the antenna will be very narrow, so the transceiver antenna is required to ensure that the same horizontal position is as far as possible. What is the difference between FRP antenna and ordinary antenna? FRP antennas are not afraid of water compared with ordinary antennas, and the antenna structure is somewhat different from ordinary upright antennas, but the principle is the same.

A normal antenna has a lower gain, a closer range, but the lobe width, that is, the surrounding coverage, is larger. Typical is the satellite antenna, the gain is very high, but almost only effective for the front, the Angle is very small, and the base station directional antenna can cover a range of 120 degrees.