The Rohde & Schwarz SMA100B is a high-performance RF and microwave analog signal generator engineered for demanding aerospace, defense, semiconductor, and wireless communications applications. It delivers exceptional signal purity, high output power across multiple frequency bands, and a configurable frequency range up to 67 GHz (with overrange to 72 GHz and extension to 170 GHz via multiplier). The instrument enables accurate device characterization in R&D, production, and service environments without compromising measurement integrity.
Technical Specifications
Frequency Range
• Base unit options: 8 kHz to 3 GHz, 6 GHz, 12.75 GHz, 20 GHz, 31.8 GHz, 40 GHz, 50 GHz, and 67 GHz
• Overrange capability to 72 GHz
• Frequency extension to 170 GHz with R&S®SZM frequency multiplier
Output Power
• Maximum output power exceeds 30 dBm across wide frequency ranges
• 6 GHz model: up to 38 dBm
• 20 GHz model: over 30 dBm at 18 GHz; 28 dBm at 20 GHz
• 40 GHz model: over 30 dBm between 20 GHz and 36 GHz
• 67 GHz model: over 22 dBm between 40 GHz and 65 GHz
• Harmonics suppressed by more than 70 dBc across wide frequency ranges at high output powers
Signal Purity — Phase Noise
• Base unit: < –120 dBc (typ.) at 10 GHz, 20 kHz offset
• With R&S®SMAB-B710 option: < –128 dBc (typ.) at 10 GHz, 10 kHz offset
• With R&S®SMAB-B711 option: < –132 dBc (typ.) at 10 GHz, 10 kHz offset
• Close-in SSB phase noise: < –83 dBc (typ.) at 10 GHz, 10 Hz offset
Signal Purity — Noise and Harmonics
• Wideband noise: –162 dBc (meas.) at 10 GHz, 30 MHz offset
• Harmonic components: < –63 dBc across entire frequency range
• Nonharmonic components: < –90 dBc (typ.) at 10 GHz; < –110 dBc (meas.) at 1 GHz with R&S®SMAB-B711(N) option
Modulation
• Analog: AM, FM, PM
• Pulse modulation with pulse widths from 100 ns
• Closed-loop level control for accurate, repeatable pulse shaping
– Key Features
• Extremely low close-in phase noise for radar Doppler detection applications
• Ultra-low wideband noise floor enables sensitive receiver testing
• High harmonic suppression maintains signal integrity at elevated power levels
• Multiple frequency bands support broad test scenarios from low-frequency to W-band
• High-power options available for extended output capability across frequency bands
– Typical Applications
• Radar and electronic warfare system development and validation
• Receiver sensitivity and selectivity characterization
• Frequency conversion and mixer testing
• Component and subsystem evaluation in aerospace and defense
• Production testing of RF and microwave devices
– Compatibility & Integration
The SMA100B integrates with the R&S®SZM frequency multiplier for sub-terahertz operation and supports optional phase noise enhancement modules (R&S®SMAB-B710, R&S®SMAB-B711, R&S®SMAB-B711(N)) for specialized low-noise applications.
