Rohde & Schwarz SMP22 2-20GHz Signal Generator

The Rohde & Schwarz SMP22 is a microwave signal generator delivering 2 GHz to 20 GHz coverage with optional extension down to 10 MHz. Output power reaches +29 dBm typical at 2 GHz and +23 dBm at 20 GHz, supporting demanding RF and microwave test environments. Spectral purity is exceptional: SSB phase noise below -105 dBc (1 Hz) at 10 GHz offset, harmonics typically below -50 dBc, and non-harmonics under -60 dBc to 20 GHz.

The instrument resolves frequencies to 0.1 Hz and level adjustments to 0.01 dB, with output level accuracy of ±0.9 dB at 0 dBm across 10 MHz to 40 GHz when equipped with the precision attenuator option.

Technical Specifications

• Frequency Range: 2 GHz to 20 GHz (optional extension to 10 MHz with Option B11)


• Output Power: >+20 dBm typical; +29 dBm at 2 GHz; +23 dBm at 20 GHz


• Frequency Resolution: 0.1 Hz, 1.0 Hz, or 0.01 Hz


• Level Setting Resolution: 0.01 dB


• Output Level Accuracy: ±0.9 dB at 0 dBm (10 MHz to 40 GHz with precision attenuator)


• SSB Phase Noise: <-105 dBc (1 Hz) at 10 GHz, 10 kHz offset from carrier


• Harmonics: Typically 1.8 GHz


• Non-harmonics: <-60 dBc up to 20 GHz; <-54 dBc above 20 GHz


• Frequency Switching Time: <400 μs; 80 dB


• Interfaces: GPIB, USB, LAN; SMA(f) or 3.5 mm RF output connectors


• OCXO Reference Oscillator option (B1) for enhanced frequency stability


• Dimensions: 426 mm × 177 mm × 483 mm; Weight: 18 kg

Typical Applications

• Production testing and R&D for telecommunications, aerospace, and defense systems


• EMC and environmental measurements


• Radar and communication equipment characterization


• Local oscillator substitution and TWT driving


• Nonlinear component testing and material characterization

Compatibility & Integration Multiple options extend functionality: frequency extension (Option B11), pulse modulators for 2–20 GHz (B12) and 10 MHz–2 GHz (B13), RF attenuator (B15), LF generator (B2), and precision oscillator (B1). Network and USB interfaces enable remote operation and integration into automated test systems.