1. Theoretical training on base station antennas

 

I. Theoretical Basis

 

1. Main principles
 

Transmission and spreading of a radio signal

Structure and main components of a Base Station Antenna

Radiation pattern of Base Station Antennas

 

2. Main technical specificities of a Base Station Antenna
 

Frequency

Impedance

Polarization

Vertical and horizontal Half Power Beam Width (HPBW)

Gain

Front to back ratio

VSWR

Intermodulation

Side lobes

Dipole VS Patch technologies

 

3. More advanced technical specificities of a Base Station Antenna
 

Cross Polar Ratio

Isolation

Intermodulation

Tracking

Squint

Environment

Mechanical Performance

 

II. Configuration of a mobile network

 

1. The Choice of Base Station Antennas : properties
 

Vertical and horizontal Half Power Beam Width

Relation between Half Power Beam Width and Gain

Mechanical downtilts: advantages and downsides

Advantages of fixed and adjustable electrical downtilts

Upstream and downstream frequencies

 

2. The Choice of Base Station Antennas : on-site challenges
 

Coverage challenge : targets and issues

Important measures to choose the appropriate antennas

Indoor antennas

Examples and special cases (main roads, rural areas, dual-band antennas with

integrated combiners)

 

III. Integration of a mobile network into the environment

 

3. On-Site aspects
 

Vertical and horizontal isolation

Space diversity and polarization diversity

Cross polarization diversity

Antennas installation on roofs (building roofs, walls)

Reflection principle

Dual-band antennas

3G upgrade: introduction to the Remote Electrical Tilt (RET)

 

4. Solutions for Cell Site Integration into the environment
 

Painted antennas

3 sectors clamps

Pipe antennas

Testing of different row materials

Fake trees