Section 5:
Operation
Example Application:
The TA2U50HA System Amplifier amplifies the RF Source output
power to the level needed to characterize DUT performance.
The small size of TA2U50HA System Amplifier is easy to place close
to the DUT input “
Reference Plane
”. The high gain of the System
Amplifier easily overcomes the cable losses from the remote RF Source.
The Figure 7 shows an amplified RF power measurement system using
the TA2U50HA System Amplifier.
The DUT is characterized by setting the power level at the DUT input
“
Reference Plane
” and measuring the output power at various input
power levels for each test frequency.
The RF Source, used in this example, is a laboratory grade Synthesized
Source or Signal Generator with precise amplitude control, (e.g. Agilent
83650L RF Source, or Anritsu MG3694A). The power levels are meas-
ured using a power meter with two measurement port sensors (A and B),
(e.g. Agilent E4419B).
An RF power coupler provides a small, proportional amount of the
amplified power to power sensor A as shown in Figure 7.
Figure 7:
Example of an Amplified RF Power Measurement System
Section 4:
Performance Verification
The Figures below show the setup used to verify the performance of the
TA2U50HA System Amplifier.
A calibrated power splitter (or calibrated coupler) connected to the
amplifier input reference plane and to power sensor A , as shown, estab-
lishes the input power level. The output power is measured on power
sensor B. Measurements of gain vs output power at frequencies of inter-
est establish the amplifier performance.
CAUTION: Use of an attenuator may be required on the output in the
sensor B is rated for less than 1W. Applies to fixtures 5,6,7.
Figure 5:
Verification setup with a power splitter
Figure 6:
Verification setup with a calibrated coupler
TA2U50HA Operating Manual
TA2U50HA Operating Manual
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