How Effective Is Accuracy Enhancement?
The uncorrected performance of the analyzer is sufficient for many measurements However,
the vector accuracy enhancement procedures described in Chapter 5,
“Optinking
Measurement
Results,
n
will provide a much higher level of accuracy. Figure 6-49 through Figure 6-51
illustrate the improvements that can be made in measurement accuracy by using a more
complete calibration routine. Figure
6-49a
shows a measurement in log magnitude format with
a response calibration only.
Figure
6-491,
shows the improvement in the same measurement
using an
SII
one-port calibration.
Figure
6-50a
shows the measurement on a Smith chart with
response calibration only, and
Figure
6-50b
shows the same measurement with an
SU
one-port
calibration.
64
Figure 6-49. Response versus
SIX
l-Port
Vibration
on Log Magnitude Format
6-76 Application and Operation Concepts