Direction, gain and power of 4G LTE antenna

1、 What are the important factors affecting the performance of 4G LTE antenna?

In radio communication, 4G LTE antenna is the interface of external medium. 4G LTE antenna can radiate and receive radio waves.

When 4G LTE antenna transmits, it can convert high-frequency current into electromagnetic wave and the received electromagnetic wave into high-frequency current. The direction, gain and power of 4G LTE antenna are important factors affecting the performance of 4G LTE antenna.

4G LTE antenna gain is an important parameter of 4G LTE antenna. The definition of 4G LTE antenna gain is related to omnidirectional 4G LTE antenna and half wave dipole 4G LTE antenna.

Omnidirectional radiator is a radiator with the same power in all directions, and there is a 4G LTE antenna gain in one direction.

DBI represents the reference value of 4G LTE antenna relative to omnidirectional radiator, and DBD is the reference value relative to half wave dipole 4G LTE antenna.

Polarization is a kind of radiation characteristic that describes the spatial direction of electromagnetic field. Generally speaking, the spatial direction of electromagnetic field vector is the polarization direction of electromagnetic wave.

At a certain time, the electromagnetic wave with constant spatial orientation is called linear polarization wave. The wave whose electric field vector direction is parallel to the ground is called horizontal polarization wave on the ground, and the wave perpendicular to the ground is called vertical polarization wave.

4G GSM antenna can be divided into directional 4G antenna and omnidirectional 4G LTE antenna according to the direction. 4G GSM antenna can be divided into unipolar and bipolar 4G LTE antenna according to the polarization mode, which can be used in different occasions and different purposes.

4G LTE antenna has different types and installation environment, and there are different requirements for the design of 4G LTE antenna support, so it needs to be further studied.

With the development of global communication services, wireless mobile communication, as the main means of personal communication in the future, has attracted great attention. The elimination of co channel interference and fading is a problem worthy of attention and research.

2、 Five step troubleshooting and remediation of 4G LTE antenna

1. The maintenance personnel go to the station to confirm / install the electric dispatching line, record the RRU connected to the electric dispatching line, and provide it to the background for verification;

2. The background network management turns on the electric dispatching detection switch, scans and reports the information of electric dispatching equipment;

3. According to the electric dispatching information reported by scanning, add the electric dispatching equipment data of the corresponding cell;

4. The network management sends the correction command to confirm whether the correction is successful. Some 4G LTE antennas can observe the expansion and contraction of the electronic dip scale during the calibration process on site. In case of correction failure, try again;

5. Set and maintain the electronic tilt down degree, and confirm whether the scale number is consistent with the background on site.