Keysight N5244/45AS Option H85 User's And Service Manual page 16

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 Figure 12
Figure 12 4-Port, Four Way High Power Configuration
SOURCE OUT
Booster Amplifier
Fix
Attenuator
RF RF
INPUT OUTPUT
Coupler
Arm
20 dB
Coupler Coupler
Main Output
12
and Figure 13 on page
RCVR A and C IN
CPLR ARM
Fix Attenuator
Fix Attenuator
RCVR R1IN
CPLR THRU
SOURCE OUT
RCVR
R3 IN
Booster Amplifier
Fix
Attenuator
RF RF
INPUT OUTPUT
Coupler
Arm
20 dB
Coupler Coupler
Main Output
13.
RCVR B and D IN
CPLR ARM
Fix Attenuator Fix Attenuator
RCVR R2 IN
CPLR THRU
RCVR
R4 IN
Booster Amplifier
Fix
Attenuator
RF RF
OUTPUT INPUT
Coupler
Arm
20 dB
Coupler Coupler
Output Main
N5245-90002 User's and Service Guide
SOURCE OUT
Booster Amplifier
Fix
Attenuator
RF RF
OUTPUT INPUT
Coupler
Arm
20 dB
Coupler Coupler
Output Main