HP 8753D - Page 300

Linear
Magnitude
F
ormat
The
N
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
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N
LIN
MAG softkey
displays the
linear magnitude
format (see
Figure
6-16
).
This
is
a
Cartesian
format
used
for
unitless
measurements such
as reection
coecient magnitude
 or
transmission
coecient
magnitude

,
and for
linear measurement
units.
It is
used for
display of
conversion
parameters
and
time
domain
transform data.
Figure
6-16.
Linear
Magnitude
F
ormat
SWR F
ormat
The
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N
N
SWR
softkey
reformats
a
reection
measurement
into
its
equivalent
SWR
(standing
wave
ratio)
value
(see
Figure
6-17
).
SWR
is
equivalent
to
(1
+

)/(1
0

),
where

is
the reection
coecient.
Note
that
the
results
are
valid
only
for
reection
measurements
.
If the
SWR format
is
used
for
measurements
of
S
21
or
S
12
the
results
are
not
valid.
Figure 6-17. Typical SWR Display
Application and Operation Concepts 6-33