HP 8753D - Page 330

Figure
6-45.
Full
Two-P
ort
Error
Model
Figure
6-46
shows
the
full
two-port
error
model
equations
for
all
four
S-parameters
of
a
two-port
device
.
Note
that
the
mathematics
for
this
comprehensive model
use
all
forward
and
reverse
error
terms
and
measured
values
.
Thus
,
to perform
full
error-correction
for
any
one
parameter
,
all
four
S-parameters
must
be
measured.
Applications
of
these
error
models
are
provided
in
the
calibration
procedures
described in
Chapter
5,
\Optimizing
Measurement
Results
."
Application and Operation Concepts 6-63