User Manual

155

MN024-08

Description:

TDPX is a frequency dependent

duplexer that combines downlink

and uplink signals while

maintaining isolation and

stability.

This board has been designed to support where the source is duplexed.

RF ports

• 1 DL RF output

port

• 1 UL RF input port

• 1 common RF port

(“C”) for UL and DL

combined signals

TDPX main

applications

The TDPX main

application is to

connect the duplexed

antenna port of the

donor source to the

Britecell Plus system.

TDPX combines/

/splits the DL and UL

signals coming from

the donor port into

two separated ports

TDPX insertion loss

The TDPX insertion losses are described in table 5.9.

UMTS 2100MHz All other bands

TDPX UL insertion loss

2.0 ± 0.5dB 7.0 ± 0.5dB

TDPX DL insertion loss

2.0 ± 0.5dB 3.3 ± 0.5dB

When designing the system, remember to take into account the insertion

losses of the TDPX.

RF port for combined

UL and DL signals

UL RF port

DL RF port

Table 5.9: Insertion loss values of the TDPX module

Fig. 5.20: The TDPX duplexer

Module name:

RF tri-band coupler

TDP