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Microwave Source
This measurement example will help you measure the absolute phase noise of
a microwave source (2.5 to 18 GHz) with frequency drift of ≤10E – 9 X Carrier
Frequency over a period of thirty minutes.
To prevent damage to the test set's components, do not apply the input signal to the
C A UTI ON
signal input connector until the input attenuator has been correctly set for the
desired configuration, as shown in
when the connection diagram appears
Required equipment
This measurement requires an Agilent 8644A with a DCFM Input port, in
addition to the phase noise test system and your DUT. (For more information,
see the section
coaxial cables and adapters necessary to connect the DUT and reference
source to the test set.
To ensure accurate measurements allow the DUT and measurement equipment to warm up
NO T E
at least 30 minutes before making the noise measurement.
Defining the measurement
1
2
3
.
e5505a-user_select_param_def_micro
rev2 10/22/03 24 Jun 04 rev 3
Figure 133 Select the parameters definition file
Agilent E5505A User's Guide
"Selecting a reference source"
From the File menu, choose Open.
If necessary, choose the drive or directory where the file you want is stored.
In the File Name box, choose "MicroSRC.pnm". See
Absolute Measurement Examples
Table 27
on page 194. Apply the input signal
on page 132.) You also need the
Figure
133.
187
6
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