The Keysight 11970A is a waveguide harmonic mixer that extends spectrum analyzer measurement capability into the Ka-band from 26.5 to 40 GHz. It downconverts high-frequency signals to intermediate frequencies processable by standard analyzers. The dual-diode design delivers flat frequency response and low conversion loss without requiring external DC bias or tuning adjustments, streamlining both manual and automated measurement workflows.
Technical Specifications
• Frequency Range: 26.5 to 40 GHz
• Local Oscillator Frequency: 3 to 6.1 GHz
• Dual-Diode Construction: Optimized for flat response across full band
• Waveguide Input SWR: Typically 2.2:1
• Maximum Safe Input Level: 100 mW
• Weight: 2 lbs
• Dimensions: 9 × 8 × 3 in
– Key Features
• Flat frequency response minimizes measurement uncertainty across the Ka-band
• Low conversion loss preserves signal integrity in downconversion
• No external DC bias or tuning adjustments required for operation
• Factory calibrated across entire operating band
• Simplified integration with computer-controlled test systems
• Waveguide input with protective cap included
– Typical Applications
• Ka-band signal analysis and characterization
• High-frequency component testing and validation
• Millimeter-wave system measurements
• Extended-range spectrum analysis on compatible analyzers
– Compatibility & Integration
The 11970A connects to Keysight spectrum analyzers including the N9030A PXA (with external diplexer), PSA Series (E4440A, E4446A, E4448A with Option AYZ), ESA-E Series (E4407B with Option AYZ), 856xEC Series, 8566B (with preamplifier), and 70000 Modular System (with 70907A/B interface module). Mixer Connection Kit (Option 009) includes three 1-meter SMA cables, wrench, and allen driver. Improved EMC radiated susceptibility available via Option C01.
