Andrew ION-B Series, User Manual

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145 MN024-010
TDPN
Description:
The TDPN is a frequency-dependent
duplexer which combines downlink and
uplink signals while maintaining isolation and
stability.
This board has been designed to support
duplexed Base Stations.
RF Ports
• 1 DL RF output port
• 1 UL RF input port
• 1 common RF port (“C”) for UL and DL
combined signals
TDPN Main Applications
The TDPN main application is to connect the
duplexed antenna port of the donor source
to the ION-B system .
The TDPN splits the DL and UL signals coming
from the donor port into two separated
ports, while combining the same path in the
opposite direction.
TDPN Insertion Loss
The TDPN insertion losses are < 3dB.
When designing the system, remember to take into account the insertion losses of the TDPN.
Warnings
The overall input power must not 30dBm.
4.8. RF Duplexer, TDPN
RF port for combined
UL and DL signals
DL RF port
UL RF port
Fig. 4.8.1 TLTN tri-band coupler