HP 8753D - Page 299

Figure
6-14.
Standard
and
Inverse
Smith
Chart
F
ormats
P
olar
F
ormat
The
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POLAR
softkey displays
a polar
format
(see
Figure
6-15
).
Each
point
on
the
polar
format
corresponds
to
a
particular
value
of
both
magnitude
and
phase
.
Quantities
are
read
vectorally:
the
magnitude
at
any
point
is
determined
by
its
displacement
from
the
center
(which
has
zero
value),
and
the
phase
by
the
angle
counterclockwise
from
the
positive
x-axis
.
Magnitude
is
scaled
in
a
linear
fashion,
with
the
value
of
the
outer
circle
usually
set to
a
ratio
value
of
1.
Since
there
is
no
frequency
axis
,
frequency
information
is
read
from
the
markers.
The
default
marker
readout
for
the
polar
format
is
in
linear
magnitude
and
phase.
Alog
magnitude
marker
and
a
real/imaginary
marker
are
available
in
the
polar
marker
menu.
Figure 6-15. Polar Format
6-32 Application and Operation Concepts