User's Manual

BreezeCOMPACT System Manual
12
Chapter 1 - System Description The BreezeCOMPACT Solution
1.2.4 Antennas
In the 4Motion architecture, the antenna is approached as an independent element. This provides the
operator with the flexibility to select the antennas source according to its supplier policy. To ensure the
availability of antennas that complement the 4Motion solution, Alvarion works closely with several
antenna suppliers to ensure availability of antennas that comply with its requirements.
In cases where the operator prefers other antenna vendors, Alvarion can provide a recommended
antenna specification based on the required antennas types.
Antennas may support one or several different downtilt options:
 Mechanical Down-Tilt (MDT) using a suitable mounting kit.
 Electrical Down-Tilt (EDT) that may be either fixed or adjustable using a special adjustment screw.
 Remote Electrical Tilt (RET) through a special interface.
Alvarion offers also AISG (Antenna Interface Standards Group) compliant electrical downtilt control kit
enabling remote tilt control for antennas that support RET.
In addition to a range of standard commercial antennas, Alvarion offers also a special attached antenna
design for convenient installation on top of the BreezeCOMPACT unit.
For details on antennas offered by Alvarion refer to “Antennas” on page 19.
Figure 1-7: Two Sectors, Two Carriers (One Carrier per Sector)