Microwave Signal Generator SMR
High-performance, cost-effective and reliable up to 40 GHz
◆ Instrument family with four models
– SMR20 (10 MHz to 20 GHz)
– SMR27 (10 MHz to 27 GHz)
– SMR30 (10 MHz to 30 GHz)
– SMR40 (10 MHz to 40 GHz)
◆ Standard version:
CW generator with pulse modulation
and digital frequency sweep
◆ Easily upgradeable to AM/FM signal
generator and synthesized sweep
generator with analog ramp sweep
thanks to flexible options concept
◆ Optional pulse generator for radar
and EMC applications
◆ Optional IF input for upconversion of
digitally modulated IF signals
◆ Compact, lightweight, user-friendly:
ideal in the lab and for field applications
◆ 3-year calibration cycle
The allrounder – designed for future–proofness
Maximum ease of operation
◆ High-contrast LC display
◆ Online help including IEC/IEEE-bus
commands
◆ Simple and self-explanatory settings
◆ User-assignable keys
◆ One-hand operation with EasyWheel
Wide frequency range
◆ SMR20 (1 GHz to 20 GHz)
◆ SMR27 (1 GHz to 27 GHz)
◆ SMR30 (1 GHz to 30 GHz)
◆ SMR40 (1 GHz to 40 GHz)
◆ Optional extension of lower frequency
limit to 10 MHz (SMR-B11)
◆ Frequency resolution 1 kHz,
optional 0.1 Hz (SMR-B3)
High output power
◆ SMR20 >+10 dBm (at 20 GHz)
◆ SMR27
◆ SMR30/40
>+11 dBm (at 27 GHz)
>+9 dBm (at 30/40 GHz)
High-precision level control
◆ High-precision, frequency-response-
compensated level control
◆ Setting range extendible to −130 dBm
by means of RF attenuator option
(SMR-B15/-B17)
Three instruments in one
◆ CW generator with pulse modulation
capability (standard version)
◆ Signal generator with AM/FM and
LF generator (option SMR-B5)
◆ Synthesized sweep generator with
analog ramp sweep (option SMR-B4)
Optional pulse generator
(SMR-B14)
◆
Operating modes: single pulse, double
pulse, externally triggered, gate mode
◆ Pulse repetition 100 ns to 85 s
◆ Pulse width 20 ns to 1 s
Sweep capabilities
◆ Digital RF and level sweep
(standard version)
◆ Analog ramp sweep
(RF sweep, option SMR-B4)
◆ Max. sweep rate for ramp sweeps
min. 600 MHz/ms
(frequency >2GHz)
◆ Digital sweep of LF generator
(with option SMR-B5)
◆ 10 freely selectable frequency
markers for RF sweep
◆ Operating modes: automatic, single-
shot, manual, externally triggered
Optional IF input
(SMR-B23/SMR-B24/SMR-B25)
◆ Built-in upconverter for digitally
modulated IF signals (SMR-B23/-B24:
DC to 700 MHz, SMR-B25: 40 MHz to
6 GHz for SMR 20 only)
◆ Ideal for use with Vector Signal
Generator SMIQ and I/Q Modulation
Generator AMIQ
2 Microwave Signal Generator SMR
CW, signal or synthesized sweep generator
Memory
◆ Space for 50 complete instrument
setups
SMR as CW generator
The SMR family comprises four basic
models designed as CW generators with
pulse modulation capability. The four
models have a common lower frequency
limit of 1 GHz and provide frequency coverage up to 20 GHz (SMR20), 27 GHz
(SMR27), 30 GHz (SMR30) and 40 GHz
(SMR40). The lower limit can be
expanded to 10 MHz by the optional
Frequency Extension 0.01 GHz to 1 GHz
(SMR-B11).
High-precision output level
Microwave signal generators are frequently used for calibrating test receivers.
This task calls for a highly accurate and
stable output level settable with high resolution. This is ensured by a high-precision,
frequency-response-compensated level
control for levels higher than –20 dBm. The
setting range can be extended to –130 dB
with the optional RF Attenuator SMR-B15
or SMR-B17.
Stable output frequency
The crystal reference built in as standard
ensures an accurate, low-drift output frequency. The SMR can be fitted with the
optional OCXO Reference Oscillator
SMR-B1 to satisfy the most stringent
requirements on accuracy and aging.
Application-oriented frequency resolution
The standard frequency resolution of
1 kHz of the SMR offers a comfortable
margin for most applications, for example
frequency response measurements in the
laboratory and in production and servicing. To satisfy more stringent requirements, e.g. for scientific applications and
research, the SMR-B3 option is available
to improve frequency resolution to 0.1 Hz.
Pulse modulator included
Pulse modulation is still the most important modulation mode for microwave
applications. Each of our basic units is,
therefore equipped with a high-quality
pulse modulator. The on/off ratio is better
than 80 dB, the rise/fall time shorter than
12 ns. Pulse widths of up to 25 ns are possible.
Offering an excellent price/performance
ratio, each of the four basic models is
ideal for the user wishing to enter the
field of microwave testing at an affordable price. Should the measurement
tasks become more demanding, the basic
models can be upgraded any time by
means of options to give an AM/FM signal generator or a synthesized sweep
generator featuring fast, fully synthe-
High output level saves you real cash
All microwave test setups involve high
losses caused by the use of long cables,
power dividers, directional couplers and
RF relays. Expensive microwave amplifiers are usually the only means to remedy
this. But not with the SMR: the high output power provided by all models eliminates the need for such a costly component.
These guaranteed values illustrate that
the SMR is the ideal generator for use in
the development, production and maintenance of radar equipment.
sized, analog ramp sweep.
dBc/Hz
Excellent spectral purity
The SMR stands out from other generators for its excellent spectral purity.
Advanced frequency synthesis with fractional-N divider makes for low SSB phase
noise and high spurious suppression,
both of which are for example prerequisites for reliable receiver measurements.
Modern microwave filters in the output
path of the instrument ensure excellent
harmonics suppression. This is necessary
to obtain conclusive results in scalar network analysis measurements.
–40.0
–50.0
–60.0
–70.0
–80.0
–90.0
–100.0
–110.0
–120.0
–130.0
–140.0
SSB phase noise at 10 GHz
2 4 68 2 4 68 2 4 68 2 4 68 2 4 68
10 Hz 100 Hz 1 kHz 10 kHz 100 kHz 1 MHz
Microwave Signal Generator SMR 3
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