HP 8753D Option 011 User Manual

Signal
Separation
External
Test
Sets
The HP
85047A S-parameter
test set
contains
a switc
hed
frequency
doubler
to
double
the
HP
8753C
source
frequency
.
A
p
ortion
of
the
RF
signal
is
coupled
to
the
analyzer
Rinput
for
reference.
(F
or
an HP
8753D Option
011 com
bined with
Option
006,
the
frequency
doubler
is b
ypassed
since
the
analyzer's
source
is
capable
of
generating
a
sw
ept
RF
signal
up
to
6
GHz.)
The
remaining
signal
is
routed
through
a
70
dB
programmable step
attenuator
to
the
directional couplers
for reection
and transmission
measurements.
The
couplers
allo
w
detection
of
the
signal
from
300
kHz
to
6
GHz.
These
couplers
pro
vide
lo
w
insertion
loss
b
et
w
een
the
RF
input
and
the
test
ports.
Two
bias tees
supply
external
biasing
for
activ
e
devices.
An HP
8753D Option
006/011 is
required
for
use
with
the
HP
85047A
test
set.
Figure
12-9
a
sho
ws
a
simplied
blo
c
k
diagram
of
the
HP
85047A.
The
HP
85046A/B
S-parameter
test
set
con
tains
a
p
o
w
er
splitter
to
div
ert
a
portion
of the
inciden
t
signal
to
the
R
input
of
the
analyzer
for
reference.
The
remainder
of the
inciden
t
signal
is
routed
through
a
switc
hto
one
of
t
w
o
directional
bridges
at
the
measuremen
t
p
orts.
The RF
path
switc
h
is
con
trolled
b
y
the
analyzer
to
enable
switc
hing
b
et
w
een
forw
ard and
rev
erse
measuremen
ts. A
70 dB
step atten
uator in
the
test
set,
also
con
trolled
from
the
analyzer,
adjusts
the
p
o
w
er
lev
el
to
the
DUT
without c
hanging the
lev
el
of
the
inciden
t
p
o
w
er
in
the
reference
path.
Tw
o
bias
tees
are
included,
for
external
biasing
of
activ
e devices
connected
to the
test p
orts.
Figure
12-9
b
sho
ws
a
simplied
blo
c
k
diagram
of
the
HP
85046A/B.
The
HP
85044A/B
transmission/reection
test
set
con
tains
a
po
w
er
splitter
to
div
ert
a
p
ortion
of
the
inciden
t
signal
to
the
R
input
of
the
analyzer.
The
remainder
of
the inciden
t
signal
is
routed
through
a
directional
bridge
to
the
measuremen
t
p
ort.
The
test
set
includes
a
man
ually
con
trolled
70
dB step
attenuator,
and
a
bias
tee
for
external
biasing
of
activ
e
devices
connected
to
the
test
p
ort.
A
simplied
blo
c
k
diagram
of the
HP 85044A/B
is
sho
wn
in
Figure
12-9
c.
An
HP
11850C/D
or
11667A
p
o
w
er
splitter
can
b
e
used
instead
of
a
test
set for
transmission
measurements
only.
12-18 Theory of Operation DRAFT
3/21/106 15:14
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HP 8753D Option 011 Specifications

General

Brand	HP
Model	8753D Option 011
Category	Measuring Instruments
Language	English