User's Manual

User Manual
Rosenberger Active Das With Intelligent Antenna system
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Rosenberger RADIANT is modular design, users can deploy diversified RF output rate and power supply
options for various projects. That provides a low-cost and highly-capable solution of mobile
communication network optimization. RADIANT is a new platform of BTS coverage extension system to
improve the signal in large building.
IM2U
NEU-1
BTS Signal
NEU-2
Optical Cable
Optical Cable
Optical
Cable
Optical
Cable
Hybrid Cable
IRU-O
1
Hybrid Cable
IRU-O
2'
Hybrid Cable
IRU-O
1'
Hybrid Cable
IRU-O
16
Hybrid Cable
IRU-O
2
Hybrid Cable
IRU-O
16'
Figure 2 RADIANT System Diagram
2.2 Main Features
 Complete Frequency Range
Rosenberger RADIANT system can cover full band GSM&DCS&WCDAM&LTE frequency band.
 Sleek, Efficient, Compact Design
The IRU-O provides an innovative design to integrate both a low power remote unit and antenna
into a single package. The IRU-O can provide up to 28.5dBm EIRP for omni applications and up to
31dBm for panel applications to ensure coverage and maximum throughput for multiple LTE and
WCDMA carriers. The unit weighs less than 3kg and consumes less than 20W DC power, suitable
for hybrid DC/fiber applications
 Precise RF tuning and coverage
Due to the inherent distributed design, each IRU-O can be individually fine-tuned for gain
adjustment in each zone to provide precise coverage. The gain adjustment can be fine tuned to a
resolution within 0.25dB within each band. Traditional high power remote units with passive
distribution are unable to achieve this level of precision and control per antenna as any change in
gain in the remote unit affects an entire group of antennas
 No additional feeder losses
Traditional remote units do not have an antenna, so an external feeder cable is required to connect
with the servicing antenna. This results in less RF power due to the inherent loss of the feeder
cable. The IRU-O antenna mates directly with the active portion and guarantees full RF power at