R&S®SMB100A Microwave Signal Generator

Versatile, compact, up to 40 GHz; 170 GHz with upconverter

All-purpose signal source
  • Frequency extension from 50 GHz to 170 GHz in combination with the R&S®SMZ frequency multiplier
  • All important analog modulations with AM, FM/φM and pulse modulation supported
  • Support of R&S®NRP-Zxx power sensors
  • Reverse power protection for high operational reliability (optionally available for the 12.75 GHz model)
  • Intuitive user interface with graphical display of signal flow for easy operation
  • Remote control via LAN, USB and GPIB including emulation modes for legacy instruments
  • Low weight and compact design for a wide range of applications, including mobile applications

Intuitive user interface with graphical display of signal flow facilitates operation
Best signal quality in the mid-range
  • Very low SSB phase noise of typ. –128 dBc at 1 GHz and typ. –108 dBc at 10 GHz carrier frequency (20 kHz carrier offset, 1 Hz measurement bandwidth)
  • Optional internal low harmonic filters for the 20 GHz and 40 GHz model to lower the harmonics to less than -50 dBc for frequencies above 150 MHz
  • Innovative DDS-based synthesizer concept
High output power and wide level range
  • High power over a wide frequency range
  • Low level range down to –120 dBm (for instruments equipped with step attenuator) with no compromise in quality
  • High harmonics suppression of < –30 dBc even at high output power

Maximum available output level versus frequency (meas.).
Ideal for production
  • Wear-free electronic attenuator for the 12.75 GHz instrument ensuring long life even in the case of heavy use in production
  • High level accuracy and repeatability for high production yield
  • Closed loop power control ensures highly accurate and very stable input power to the DUT irrespective of unwanted power drifts in the test setup (e.g. caused by a power amplifier in between the signal generator and the DUT)
  • Short frequency and level setting times which can be further reduced in List mode
  • Low power consumption

Measured level linearity, ALC ON (with the R&S®SMB-B112 12.75 GHz frequency option).
Measured level linearity, ALC ON (with the R&S®SMB-B140 40 GHz frequency option and the R&S®SMB-B32 high power option).
Typical test setup with R&S®SMB100A and the R&S®UPV audio analyzer
(the R&S®UPP can be used alternatively).
Ready for aerospace and defense applications
  • Optional pulse modulator with typ. > 90 dB ON/OFF ratio and rise/fall time of typ. < 5 ns and pulse generator with minimum pulse width of 10 ns for radar system testing
  • Flexible generation of pulse trains for simulating complex pulse scenarios (optional)
  • Wide temperature range of 0 °C to +55 °C and high permissible operating altitude of 4600 m for use even under extreme conditions
  • Sanitizing of user data for secured areas
  • High-quality shielding

Pulse train: combination of pulses with different pulse widths and pauses.
Editing pulse train data (left screen). Diagram of the pulse train (right screen).
Flexible service concept
  • Servicing on-site or at a Rohde & Schwarz service center
  • Built-in selftest of modules to support troubleshooting
  • Complete calibration recommended only every three years
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