Amplitude And Phase Tracking - Agilent Technologies 8719ES User Manual

Amplitude and Phase Tracking

The match between mixers is defined as the absolute difference in amplitude or phase
response over a specified frequency range. The tracking between mixers is essentially how
well the devices are matched over a specified interval. This interval may be a frequency
interval or a temperature interval, or a combination of both.
You can make tracking measurements by ratioing the responses of two mixer conversion
loss measurements. Then any difference you view in response is due to the mixers and not
the measurement system.
Using the same measurement setup as in
2-35, you can determine how well two mixers track each other in terms of amplitude and
phase.
1. Repeat steps 1 through 8 of the previous section
page 2-35, with the following exception:
In step 7, select
Format
2. Once the analyzer has displayed the measurement results, press
.
DATA→MEM
3. Replace the calibration mixer with the mixer under test.
4. Press
DATA/MEM
The resulting trace should represent the amplitude and phase tracking of the two mixers.
Figure 2-26 Connections for an Amplitude and Phase Tracking Measurement
Between Two Mixers
"Phase or Group Delay Measurements" on page
.
PHASE
.
Making Mixer Measurements (Option 089 Only)
Amplitude and Phase Tracking
"Phase Linearity and Group Delay" on
Display
2- 39