16
N5245-90002 User’s and Service Guide
N5244/45AS Option H85
Operation
This configuration allows the user to stimulate Port 1 with high power. Port 1 must have a high
power amplifier, high power coupler, isolator and attenuators. The isolator, 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. Ports 2, 3 and 4
each have a high power isolator located between the SOURCE OUT and CPLR THRU. This
isolator is required to protect the components inside the PNA-X. The isolator can be replaced by
a high power attenuator or circulator. Refer to
Figure 16
4-Port, One Way High Power Configuration
Fix Attenuator
Isolator
In
Out
Fix Attenuator
High Power 1 Way
Direction Configuration
Booster Amplifier
RF
INPUT
RF
OUTPUT
Coupler
Arm
20 dB
Coupler
Main
Coupler
Output
Fix
Attenuator
CPLR ARM
RCVR A IN
SOURCE OUT
SOURCE OUT
RCVR R1 IN
CPLR THRU
CPLR THRU
CPLR ARM
RCVR B IN
Fix Attenuator
Fix Attenuator
DUT
Содержание N5244/45AS Option H85
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