12
N5245-90002 User’s and Service Guide
N5244/45AS Option H85
Operation
This configuration is similar to the 2-Port, Two Way Configuration with the exception of Ports 1,
2, 3 and 4 are configured to allow the user to stimulate each port with high power. Each port
must have a high power amplifier, high power coupler, isolator and attenuators. The isolators,
reference and measured receiver attenuators are optional. They are dependent on the high
power couplers coupling factor, amplifiers reverse isolation and power required to test the
device. The attenuator, located at the high power coupler arm, may not be required if the
coupling factor attenuates the signal adequately for the reference receiver channel. The same is
also true for the measure receiver channels. The measure receiver attenuators for A IN, B IN,
C IN and D IN may have sufficient range to compensate for the users desired power level. The
isolators maybe eliminated if the amplifier reverse isolation is high. The DUT is not shown in the
figure. Refer to
and
.
Figure 12
4-Port, Four Way High Power Configuration
Fix Attenuator
Fix Attenuator
Booster Amplifier
RF
INPUT
RF
OUTPUT
Coupler
Arm
20 dB
Coupler
Main
Coupler
Output
Fix
Attenuator
CPLR ARM
RCVR A and C IN
RCVR R1IN
CPLR THRU
CPLR ARM
RCVR B and D IN
Booster Amplifier
RF
INPUT
RF
OUTPUT
Coupler
Arm
20 dB
Coupler
Main
Coupler
Output
Fix
Attenuator
RCVR R2 IN
CPLR THRU
Booster Amplifier
RF
INPUT
RF
OUTPUT
Coupler
Arm
20 dB
Coupler
Main
Coupler
Output
Fix
Attenuator
Booster Amplifier
RF
INPUT
RF
OUTPUT
Coupler
Arm
20 dB
Coupler
Main
Coupler
Output
Fix
Attenuator
Fix Attenuator
Fix Attenuator
SOURCE OUT
SOURCE OUT
RCVR
R3 IN
RCVR
R4 IN
SOURCE OUT