Max. frequency range from ◆
100 kHz to 43.5 GHz
Excellent SSB phase noise ◆
of typ. –120 dBc (at 10 GHz;
10 kHz carrier offset)
Very high output power of ◆
typ. +25 dBm
Ideal in all areas◆
R & D –
Production –
Service as well as maintenance –
and repair
Remote control via GPIB, Ethernet ◆
or USB
Innovative block diagram operation◆
2 ¸SMF100A Microwave Signal Generator
At a glance
Signal quality, speed, and flexibility –
these are decisive properties for a signal
generator in the microwave range.
To meet even the highest of requirements, the ¸SMF100A microwave
signal generator was completely redesigned and newly developed. The result
is a first-rate, state-of-the-art microwave
signal generator that sets new standards.
It thus covers the numerous fields of application encountered in R & D, production, service, maintenance, and repair.
The ¸SMF100A operates in the
wide frequency range from 100 kHz to
43.5 GHz with specific configurations.
In addition to CW signals, all common
types of analog modulation (AM, FM,
jM, pulse modulation) or combinations
thereof can be generated.
For just one example among many, take
the following application: What can you
do when cable loss at high frequencies starts becoming a larger and larger
problem? Subsequent amplifiers represent one solution – or you can simply
use the ¸SMF100A equipped with
the ¸SMF-B32 or ¸SMF-B34
option that supplies a high output power
of typ. +25 dBm at 20 GHz.
The ¸SMF100A signal generator
offers a modern graphical user interface for fast and intuitive operation. The
settings – which, for the first time in
a microwave signal generator, can be
controlled via a block diagram – and the
signal flow can be seen at a glance.
(>10 MHz carrier offset; 1 Hz measurement bandwidth; at +10 dBm)
Very low harmonics: ◆
typ. <–55 dBc at 10 GHz
(at +10 dBm)
High suppression of nonharmonics: ◆
typ. <–62 dBc at 10 GHz
(>3 kHz carrier offset; at +10 dBm)
Ideal for use in production
Very short level and frequency ◆
setting times across entire level and
frequency range:
<4 ms (frequency), <3 ms (level),
<700 µs (List mode; frequency
and level)
Very high output power of up to ◆typ.+25 dBm
Outstanding absolute level accuracy ◆
and level repeatability
Selection of interfaces for remote ◆
control
Low space requirement in rack: ◆
only three height units
Aerospace & defense applications
Optional pulse modulator with ◆
excellent data:
>80 dB on/off ratio
<10 ns rise/fall time
<20 ns pulse width
Optional pulse generator◆
Optional pulse train◆
Optional removable compact ◆
flash disk to meet high security
requirements
All-purpose applications
Frequency range 100 kHz to 43.5 GHz◆
Frequency, level, and LF sweeps◆
AM, broadband FM, ◆jM, pulse
modulation
Two multifunction generators ◆
up to 10 MHz
Usable for scalar network analysis◆with
¸-NRP-Zx power sensor connected
Intuitive operating concept
Intuitive operating interface with ◆
graphical representation of the signal
flow (block diagram)
Operation with rotary knob on ◆
instrument or with USB mouse
VGA color display with ◆
640 pixels × 480 pixels
Selection of interfaces
Remote control via GPIB, Ethernet◆
or USB
USB ports for keyboard, mouse, and ◆
memory stick
Connector for ¸NRP-Zx power sen-◆
sors for precise power measurement
Control via remote operation tool ◆
(e.g. VNC)
018000360005400072000
90
000
108
000126000 144000
Level repeatability in dB
Switching cycles
0510152025303540
0.05
0.04
0.03
0.02
0.01
0
–0.01
–0.02
–0.03
–0.04
–0.05
Measurement time in hours
Everything in one instrument
The ¸SMF100A base unit with
frequency option included already offers
the essential functions and interfaces.
This basic configuration can be adapted
to meet the requirements of further
applications by adding specific options.
The ¸SMF100A has outstanding
specifications. Additional options for
improving performance are not needed.
This gives you a decisive advantage as
the user. You no longer need to carry out
tedious option configurations in order to
increase performance.
The base unit with frequency options
included consists of the following:
Precise output level
Precise and stable output levels
are essential in a microwave signal
generator. Furthermore, high resolution
is required when calibrating levels in
measuring receivers. Therefore, the
¸SMF100A offers high-precision,
frequency-response-corrected level
control across the entire level range.
Of course, the ¸SMF100A includes
outstanding absolute level accuracy.
But even more important is its level
repeatability, since absolute errors
can be compensated for by means of
the appropriate corrections. Particularly in the case of repeatability, the
¸SMF100A sets new standards as
shown in the figure below.
Digital frequency and level sweep
The digital frequency sweep makes
it possible to perform frequency
response measurements of microwave
applications. Start and stop frequencies
as well as step times are user-selectable.
A trigger input enables synchronized operation with external equipment.
The level sweep across any level range
makes it possible, for example, to
measure the compression characteristic
of amplifiers or mixers.
¸SMF100A base unit plus ◆
¸SMF-B122 frequency option
(1 GHz to 22 GHz)
¸SMF100A base unit plus ◆
¸SMF-B144 frequency option
(1 GHz to 43.5 GHz)
High frequency resolution
To meet the high requirements of many
applications in research and science,
the frequency options offer a frequency
resolution of one-thousandth of a hertz
(0.001 Hz) as standard.
With the optional ¸SMF-B2 fre-◆
quency extension plus one of the frequency options, the frequency range
starts at 100 kHz
This package contains the following as
standard:
Excellent spectral purity
Absolutely no compromises have been
made here. Everything technically feasible has been implemented. Both the
SSB phase noise and the outstanding
suppression of harmonics and nonharmonics earn top grades. This is a must
for anyone working in the area ofscalar
network analysis, for example.
¸SMF100A Microwave Signal Generator 3
Level repeatability over time (with random frequency and level changes between measurements)
4 ¸SMF100A Microwave Signal Generator
Additional options
0
5
10
15
20
25
30
35
0510152025303540
Level in dBm
Frequency in GHz
With ¸SMF-B34 high output power option
Without ¸SMF-B34 high output power option
Output power of the ¸SMF-B2 frequency extension
0
5
10
15
20
25
30
35
05101520
Level in dBm
Frequency in GHz
With ¸SMF-B32 high output power option
Without ¸SMF-B32 high output power option
The ¸SMF100A can be expanded
with the following options in order to
further adapt it to a wide variety of
applications:
Expanded level range
For sensitivity measurements on receivers,
very low levels are needed. With the optional ¸SMF-B26 or ¸SMF-B27
step attenuator, the lower level limit is
shifted from –20 dBm without attenuator
down to –130 dBm with attenuator.
FM
FM
jM
AM
Log AM
PM
FSK––
PSK––
ASK
possible with no restrictions
possible with restrictions
•
not feasible
–
–
jM
–
AMLog AMPMFSKPSKASK
–•
–
••–
––•
––
––
•
––
––
Modulation matrix
–
–
•
–
High output level
In many microwave test setups, various
equipment such as long cables, power
splitters, directional couplers, or RF
relays cause high loss. One possible
solution here is an expensive exter-
Maximum output power with and without the R&S®SMF-B34 high output power option in the
frequency range 100 kHz to 43.5 GHz (¸SMF-B144 and ¸SMF-B2; with the R&S®SMF-B27
step attenuator option); the lower curve in the frequency range 100 kHz to 1 GHz is with activated
pulse modulator of the R&S®SMF-B2 frequency extension
nal microwave amplifier. But you can
avoid this budget-consuming compo-
nent by using the ¸SMF-B32 or
¸SMF-B34 high output power option
with up to typ. +25 dBm at 20 GHz.
AM, FM, jM, and Log AM including
LF generators and noise generator
The ¸SMF-B20 AM/FM/jM/LOG AM
option complements the ¸SMF100A
microwave signal generator. This expansion also includes two LF generators and
a noise generator, making any combination of modulation modes possible. The
table above provides an overview.
Analog ramp sweep mode
The analog ramp sweep mode (provided
by the ¸SMF-K4 option) corresponds
to the analog sweep of classic sweep
generators except that the sweep is fully
synchronized over the complete range.
In this way, the excellent frequency accuracy of digital step sweeps is achieved
on the whole, and this at much higher
sweep rates of min. 700 MHz/ms at frequencies ≥3 GHz.
Maximum output power with and without the R&S®SMF-B32 high output power option in the
frequency range 1 GHz to 22 GHz (¸SMF-B122; in both cases with the R&S®SMF-B26 step
attenuator option)
High-end pulse modulation
The ¸SMF100A can additionally be
equipped with the ¸SMF-K3 pulse
modulation option. Even high requirements are exceeded by an ON/OFF ratio
of >80 dB, a rise/fall time of <10 ns, and
a minimum pulse width of <20 ns.
High-quality pulse generator
In the case of pulsed signals, the
combination of the ¸SMF-K3 pulse
modulator option and the internal
¸SMF-K23 pulse generator option
offers the ideal solution – particularly
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
1101001k10k100k1M10M
22 GHz
1 GHz
3 GHz
10 GHz
40 GHz
Offset frequency in Hz
SSB phase noise in dBc (1 Hz measurement bandwidth)
¸SMF100A Microwave Signal Generator 5
if you do not have a high-quality pulse
RF signal
Time
T
1
T
2
T
3
T
n
t
1
t
2
t
n-1
generator for testing. However, the
internal pulse generator can also be
used by itself in external applications via
designated outputs.
One new optional feature of the builtin pulse generator is the alternative to
generate "pulse trains" (¸SMF-K27
option), which are commonly used for radar applications. An example of a pulse
train is shown in the figure on the right.
In contrast to single or double pulses,
"pulse trains" are a combination of different pulses, which can be a periodical
or non-periodical set of pulses.
Highly stable output frequency
The integrated reference oscillator
included as standard keeps the output
frequency precise and low in drift. To
meet the highest of requirements in
precision and aging, you can add the
¸SMF-B1 OCXO reference oscillator
option to the ¸SMF100A.
Pulse train: combination of pulses with different pulse widths and pauses
Excellent signal quality
Due to an innovative synthesizer con-
cept, the ¸SMF100A offers excellent
values in terms of SSB phase noise,
wideband noise, and non harmonics sup-
pression. It is the ideal solution for all
measurement applications in which the
very high spectral purity of typ. –120 dBc
(10 GHz; 10 kHz carrier offset; 1 Hz mea-
surement bandwidth) is needed. For ex-
ample, it can be used in communications
systems as an IF or LO substitute for
adjacent channel or phase noise mea-
surements or in low-noise radar as an
ultra-pure signal source.
The ¸SMF100A offers this outstanding signal quality because it
includes an integrated reference
oscillator as standard. You can improve
this quality even further very near the
carrier by adding the ¸SMF-B22
enhanced phase noise option.
Single sideband phase noise for various frequencies with the R&S®SMF-B22 enhanced phase noise performance option
6 ¸SMF100A Microwave Signal Generator
Ideal for use in production
In production, high throughput and low
test costs are the benchmarks by which
a state-of-the-art microwave signal
generator must be measured. The
¸SMF100A excels in this area
by continuing the long tradition of
very short level and frequency setting
times in signal generators from
Rohde & Schwarz. These very short
setting times in the millisecond range
can be significantly reduced even
further in the List mode. Here, the use
of frequency and level pairs stored in
a list brings setting times down to less
than 700 µs when changing from one
frequency and level pair to the next.
In addition to very short setting times,
a wide level range is also required.
There are two reasons for this. First,
sensitivity measurements demand very
low levels, which can be set with the
optional attenuators. Second, the microwave signal generator must compensate
for loss in the test setup by means of
correspondingly high output power. This
must be done without having to rely on
external amplifiers.
The ¸SMF-B32 or ¸SMF-B34
high output power option, which has
output power of typ. +25 dBm at 20 GHz,
will meet your needs with power to
spare.
Furthermore, the production environ-
ment demands that measuring equip-
ment be small in size. Occupying only
three height units, the ¸SMF100A
leaves ample space for other equipment
in a rack.
Aerospace & defense
The high requirements encountered in the
aerospace & defense industry are met by
the combination of the ¸SMF-K3
pulse modulator option and the
¸SMF-K23 pulse generator option.
For example, both single and double
pulses can be generated with a delay.
In addition, the pulse generator can
generate pulse trains (¸SMF-K27 op-
tion), which are a combination of pulses
with different widths and spacings be-
tween the pulses.
To meet the high security requirements
demanded in aerospace & defense
applications, the internal memory (compact flash disk containing all stored settings) can be shifted to the rear of the
instrument (¸SMF-B85 option). The
flash disk is then located in a slot and
can be removed whenever necessary.
Thus, sensitive data can always remain
in a secured area.
Intuitive operating concept
State-of-the-art microwave signal
generators offer a wealth of functions,
internal boards, modules, and interfaces.
When working with the instrument, you
will especially appreciate its intuitive
and fast operation as well as its straightforward display of the settings that have
been made. In the ¸SMF100A, this
is implemented by means of an easy-toread block diagram.
You can immediately see which blocks
can be called up for modulation or
frequency settings, or which inputs
and outputs have been enabled. Plus,
your colleagues will benefit as well:
All of them can see at a glance how
the ¸SMF100A microwave signal
generator is configured.
The ¸SMF100A block diagram shows numerous settings, the signal flow, as well as active
inputs and outputs in a straightforward manner
¸SMF100A Microwave Signal Generator 7
Selection of interfaces
The ¸SMF100A microwave signal
generator can be remote-controlled via
GPIB, LAN, or USB (LAN is part of the
base unit). Slots are provided for the
GPIB and USB options.
The two spare slots can be used for a
maximum of two of the following three
options: ¸SMF-B83 removable
GPIB, ¸SMF-B84 removable USB, or
¸SMF-B85 removable flash disk.
For operating the instrument outside
the security area, an optional spare
CompactFlash™ memory card
(¸SMF-Z10) is available on which
no security-relevant data is stored. You
can insert this spare card in the slot,
switch on the signal generator, and then
perform an internal instrument adjustment. The instrument is now ready for
operation, calibration, or repair.
Optional flash disk plug-in module, open (top) and closed
Rear view of the ¸SMF100A with optional GPIB and USB (master and slave) interfaces
8 ¸SMF100A Microwave Signal Generator
Suitable for all
applications
Scalar network analysis
A common task in R&D or production is
the adjustment of filters or the characterization of components. With its integrated
List mode or its optional analog ramp
sweep, the ¸SMF100A directly offers
two ways of performing the measurements
quickly and accurately. A major advantage
in both modes is that frequency and
linearity errors can be eliminated, as
frequency generation is implemented
in a synthesized (digital) manner.
A third brand-new approach to scalar
network analysis is provided by the
power sensor connectivity of the
¸SMF100A plus the ¸SMF-K28
power analysis option.
List mode
Especially when the ¸SMF100A microwave signal generator is used together
with a Rohde & Schwarz spectrum analyzer
(¸FSP-B10 option), scalar network
analysis can be performed selectively and
very quickly. The distinguishing aspect
is a large dynamic range with which,
for example, filters in the passband and
stopband can be measured even at small
Scalar network analysis on a external bandpass filter (with ¸SMF-K28 power analysis option plus
¸NRP-Zx power sensor)
levels. An adjustable frequency offset is
also available for measuring frequency-
converting DUTs. (Note: The List mode
in combination with the ¸FSP-B10
option requires that the ¸SMF-B83
removable GPIB option be installed.)
Analog ramp sweep
For the "realtime adjustment" of filters
or components, very high sweep speed
and sweep accuracy are required. The
¸SMF100A meets this requirement
by means of the optional ¸SMF-K4
analog ramp sweep. This solution
furthermore offers a higher frequency
resolution than the List mode mentioned
earlier.
Scalar network analysis with an
¸NRP-Zx power sensor
In the absence of spectrum or network
analyzers scalar network analysis can be
performed by means of the ¸SMF100A
microwave signal generator with the
¸SMF-K28 power analysis option
plus an ¸NRP-Zx power sensor. One
example is to measure the passband
characteristic of a bandpass filter.
Scalar network analysis with the ¸SMF100A microwave signal generator and the ¸FSQ spectrum analyzer with the ¸FSP-B10 option installed
¸SMF100A Microwave Signal Generator 9
2.5
2
1.5
1
0.5
0
–0.5
–1
–1.5
Level in dB
Frequency
Without frequency response correction
With frequency response correction
¸SMF100A
Amplifier
The input of this filter is connected to
the RF output whereas the output is connected to an ¸NRP-Zx power sensor.
The power sensor itself is plugged to
Setup on the ¸SMF100A
the sensor input of the ¸SMF100A.
Based on the entered frequency range
the ¸SMF100A performs the mea-
surement and displays the passband of
Characteristic of a bandpass filter displayed by the ¸SMF100A (with the ¸SMF-K28 power
analysis option installed)
this bandpass filter. The filter can now be
manually tuned and the adjustments can
be directly controlled on the
¸SMF100A display.
User-defined correction of external
frequency responses
DUTs such as power amplifiers always
have frequency responses. In these
cases, the signal generator needs to compensate for the frequency response. The
¸SMF100A offers the User Correction
function for precisely this purpose. For
Output level of the ¸SMF100A microwave signal generator with (red) and without (yellow)
frequency response correction
a known frequency response that needs
to be corrected, you can enter the level
correction values as a function of the fre-
quency. Automatic interpolation of the
correction values is performed between
these frequency points.
To simplify this, the ¸SMF100A can
also automatically include the level correction values at the press of a button by
using external Rohde & Schwarz power
sensors.
User correction table with frequency and level
correction entries in Hz and dB, respectively
A
Ref 10 dBmAtt 35 dB
1 S
A
A
V
G
Center 5 GHzSpan 2 MHz200 kHz/
RBW 50 kHz
VBW 200 kHz
SWT 20 ms
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
A
Ref 10 dBmAtt 35 dB
1 S
A
A
V
G
Center 5 GHzSpan 2 MHz200 kHz/
RBW 50 kHz
VBW 200 kHz
SWT 20 ms
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
A
Ref 10 dBmAtt 35 dB
1 S
A
A
V
G
Center 5 GHzSpan 2 MHz200 kHz/
RBW 50 kHz
VBW 200 kHz
SWT 20 ms
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
10 ¸SMF100A Microwave Signal Generator
The figure on the right shows the compensated frequency response of the amplifier with activated "User correction"
(straight line at 5.7 dBm starting at
2.5 GHz up to 3.5 GHz). This procedure
ensures that only the frequency response
of a bandpass filter is measured, for
example, but not the combined frequency
response of amplifier and bandpass.
LO with exceptionally low
SSB phase noise
Because of its very low SSB phase noise,
the ¸SMF100A can be used for a
wide variety of applications. However,
there are applications that require
"worse" SSB phase noise for testing.
Output characteristic of an amplifier obtained by applying “User Correction”, with the ¸SMF-K28
power analysis option installed.
For these cases, the ¸SMF100A
offers a unique function: FM-modulated
noise enables you to artificially degrade
the instrument's low SSB phase noise in
The figure shows an unmodulated CW
signal and a signal that is FM-modulated
with noise. By varying the FM deviation,
you can degrade the SSB phase noise.
order to test the response of an oscillator
or synthesizer, for example.
CW
The ¸SMF100A in the "FM-modulated noise" application
RF signal
Time
T1T
1
T1T
1
T1T
1
t
2
t
1
t
2
t
1
t
1
RF signal
Time
T
1
T
2
T
3
T
n
t
1
t
2
t
n-1
RF signal
Time
T
1
T
1
T
1
T
1
t
1
t
1
t
1
Pulsed transmitter
Pulse generator
Display
LORF
Sideband
filter
Circulator
Pulse
1
2
Antenna
Antenna direction pulse
¸SMF100A Microwave Signal Generator 11
Aerospace & defense applications
The ¸SMF100A can also be used in
pulse radar applications with a rotating
antenna. In the example (see figure), the
external pulse from the pulse generator
is applied to the external pulse input of
the ¸SMF100A and used as a trigger
for the internal pulse generator and
modulator. You can delay this trigger in
order to perform distance and direction
simulations and check them on the radar
equipment's display.
For generating more complex pulse scenarios, the ¸SMF100A offers a new
feature – based on its pulse modulator
and pulse generator concept – using the
¸SMF-K27 pulse train option. In contrast to single or double pulses, "pulse
trains" are a combination of different
pulses, which can be a periodical or
non-periodical set of pulses. The built-in
optional pulse generator makes it now
possible to generate these "pulse trains",
which are commonly used for radar applications. Pulse width as well as pulse
pause can be set independently and
separately for each pulse. This makes it
possible to generate staggered pulses or
to apply jitter to pulse width as well as
pulse pause.
Testing of the distance and antenna direction display of the radar equipment
Single pulses
In contrast to ARB solutions, the greatest
advantage is the much better performance
of the pulse modulator with respect to
ON/OFF ratio, rise and fall time, etc.
Double pulses
Pulse train (with the ¸SMF-K27 pulse train option)
Special features
12 ¸SMF100A Microwave Signal Generator
A unique feature of this microwave
signal generator is that it allows you to
directly connect an ¸NRP-Zx power
sensor. This has its advantages. The
power sensor enables you to measure
the power directly before the DUT and
display it on the ¸SMF100A. Irrespective of cable loss values or any components connected between the DUT
and signal generator, you can thus set
the desired power on the DUT by using
the ¸SMF100A microwave signal
generator.
Another advantage becomes evident
in the case of applications that require
very high absolute level accuracy: The
¸SMF100A can measure its own
output power via an attached power
sensor. Manual adjustment capability
allows you to increase the instrument's
exceptional absolute level accuracy even
further.
An ¸NRP-Zx power sensor attached at the sensor connector
You can operate the instrument both
via the front-panel control elements or
via a USB keyboard and USB mouse. To
permit this, the front panel of the instrument provides two USB interfaces. In addition, an extra USB port is available on
the rear panel (¸SMF-B84 option,
master and slave USB).
The following question arises in many
applications: How can I transfer instrument settings from one instrument to
the other quickly and without errors?
The solution is to use a memory stick.
You merely need to use Save/Recall to
quickly transfer instrument settings to a
different ¸SMF100A.
¸NRP-Z55 power sensor connected to the ¸SMF100A RF output:
The measurement result is displayed in the upper right of the block diagram
Keyboard with USB Interface (US character set)¸PSL-Z21157.6870.04
Mouse with USB Interface, optical¸PSL-Z101157.7060.03
External USB DVD Drive¸PSP-B61134.8201.22
Adapters for the ¸SMF100A with the ¸SMF-B122 frequency option
3.5 mm female1021.0512.00
3.5 mm male1021.0529.00
N female1021.0535.00
N male1021.0541.00
Adapters for the ¸SMF100A with the ¸SMF-B144 frequency option
2.4 mm female1088.1627.02
2.9 mm female1036.4790.00
2.9 mm male1036.4802.00
N female1036.4777.00
N male1036.4783.00
1)
The ba se unit can onl y be ordered to gether wit h the ¸SMF- B122 or ¸SMF- B144 freque ncy option.
2)
Option f itted by f actory.
3)
Option fit ted by factory or especially equipped Rohde & Schwarz service department.
4)
Option canno t be installed wit h an R&S®SMF- B22 enhanc ed phase nois e perform ance option (not required).
5)
Only two of the t hree options ¸SMF -B83, ¸SMF- B84, and ¸S MF-B85 c an be installed simultaneous ly.
Certified Quality System
ISO 9001
DQS REG. NO 1954 QM
Certified Environmental System
ISO
14 001
DQS REG. NO 1954 UM
For data sheet, see PD 5213.7660.22
and www.rohde-schwarz.com
¸ is a registered trademark of Rohde & Schwarz GmbH & Co. KG · Trade names are trademarks of the owners ·
PD 5213.7660.12 · Version 02.01 · February 2009 · R&S®SMF100A · Data without tolerance limits is not binding · Subject to change Printed in Germany (ch) *0.14 €/min within German wireline network; rates may vary in other networks (wireline and mobile) and countries.
Europe, Africa, Middle East +49 1805 12 42 42* or +49 89 4129 137 74 customersupport@rohde-schwarz.com
www.rohde-schwarz.com
North America +1-888-TEST-RSA (1-888-837-8772) customer.support@rsa.rohde-schwarz.com
Latin America +1-410-910-7988 customersupport.la@rohde-schwarz.com
Asia/Pacific +65 65 13 04 88 customersupport.asia@rohde-schwarz.com
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.