The Rohde & Schwarz SMZ90 is a waveguide frequency multiplier that extends the frequency reach of compatible signal generators into the millimeter-wave band. Operating with a fixed 6× multiplication factor, it transforms input signals in the 10 GHz to 15 GHz range into output frequencies spanning 60 GHz to 90 GHz. The device delivers typical output power of +5 dBm at specified input levels of +6.7 dBm to +7.3 dBm, with operational input power tolerance from +6 dBm to +10 dBm. Input impedance is 50 Ω with VSWR below 2, while the waveguide output (WR12) presents VSWR below 1.7. Spurious performance is tightly controlled: harmonics, subharmonics, and in-band spurious components all measure below –20 dBc typical. Level uncertainty ranges from ±1.0 dB at 0 dBm down to ±2.0 dB between –10 dBm and –20 dBm. The multiplier accepts +9 V ± 540 mV DC supply and draws less than 1 A at full capacity. Optional mechanically or electronically controlled attenuators extend output control to +4 dBm typical or +1 dBm typical respectively. Input damage threshold exceeds +16 dBm. The benchtop unit measures 4.5 × 3.1 × 10.9 inches and weighs 1.9 kg, featuring a K-female input connector and WR12 waveguide output. Standard accessories include waveguide-to-waveguide adapter, DC power adapter, USB cable, and operating documentation.
Technical Specifications
• Multiplication Factor: 6×
• Input Frequency Range: 10 GHz to 15 GHz
• Output Frequency Range: 60 GHz to 90 GHz
• Input Power (optimal): +6.7 dBm to +7.3 dBm
• Operational Input Power Range: +6 dBm to +10 dBm
• Typical Output Power: +5 dBm
• Maximum Output with Mechanical Attenuator: +4 dBm (typ.)
• Maximum Output with Electronic Attenuator: +1 dBm (typ.)
• Input Impedance: 50 Ω
• Input VSWR: < 2
• Output VSWR: +16 dBm
• Harmonics: < –20 dBc (typ.)
• Subharmonics: < –20 dBc (typ.)
• In-band Spurious: < –20 dBc (typ.)
• Supply Voltage: +9 V ± 540 mV
• Current Consumption: < 1 A
• Power Consumption: 10 W (fully equipped, 230 V AC)
• Input Connectors: K female (50 Ω)
• Output Interface: WR12 waveguide
• Dimensions: 4.5 × 3.1 × 10.9 inches (W × H × D)
• Weight: 1.9 kg
– Key Features
• Clean spurious suppression across harmonics, subharmonics, and in-band components
• Robust input damage tolerance exceeding +16 dBm protects against overload
• Optional attenuation modules provide flexible output level control
• USB interface for remote instrument control via R&S SMZ Control software
• Included waveguide adapter and power supply enable immediate deployment
– Typical Applications
• Millimeter-wave signal generation for telecommunications testing
• Radar system characterization and validation
• Research and development requiring extended frequency coverage
• Precision frequency multiplication in metrology and standards work
– Compatibility & Integration
• Works with R&S SMF100A and R&S SMB100A signal generators
• Controlled via R&S SMZ Control software over USB
• Optional mechanically controlled attenuator: R&S SMZ-B90M
• Optional electronically controlled attenuator: R&S SMZ-B90E
