HP 8753D - Page 76

Measuring Magnitude
and Insertion
Phase Response
The
analyzer
allows
you
to make
two dierent
measurements simultaneously
.Y
ou can
make
these
measurements
in
dierent
formats
for
the same
parameter.
For
example,
you could
measure
both
the
magnitude
and
phase
of transmission.
You
could also
measure two
dierent
parameters
(S
11
and
S
22
).
This
measurement
example
shows
you how
to measure
the maximum
amplitude of
a
SA
W
lter
and
then
how
to
view
the
measurement data
in the
phase format,
which
provides
information
about
the
phase
response
.
Measuring
the
Magnitude
Response
1.
Connect
your
test
device
as
shown
in
Figure
2-24.
Figure
2-24.
Device
Connections
for
Measuring
a
Magnitude
Response
2.
Press 4
PRESET
5
and choose
the
measurement
settings
.
F
or
this
example
the
measurement
parameters
are
set
as
follows:
4
MEAS
5
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
Trans:
FWD S21
(B/R)
4
CENTER
5
4
134
5
4
M/

5
4
SP
AN
5
4
50
5
4
M/

5
4
MENU
5
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
POWER
4
0 3
5
4
x1
5
4
SCALE
REF
5
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
AUTO
SCALE
4
CHAN
2
5
4
MEAS
5
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
Trans:
FWD
S21
(B/R)
4
SCALE REF
5
NNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNN
AUTO SCALE
You may also want to select settings for the number of
data points
, averaging, and IF
bandwidth.
3. Substitute a thru for the device and perform a response calibration for both channel 1 and
channel 2.
Press 4
CAL
5
NNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNN
CALIBRATE MENU
NNNNNNN
NNNNNNNNNNNNNNNNNNN
RESPONSE
NNNNNNN
NNNNNNN
THRU .
Press 4
CHAN 1
5
N
NNNNNNNNNNNNNNNNNNNNNNNNN
RESPONSE
NNNNNNNNNNNNNN
THRU .
Making Measurements 2-27