The Keysight (Agilent) M1971W is a waveguide harmonic mixer that extends spectrum and signal analyzer frequency coverage into the 75 to 110 GHz millimeter-wave band. Operating as an un-preselected downconverter, it leverages harmonic mixing to translate high-frequency input signals to baseband for analysis. The mixer integrates directly with Keysight X-Series signal analyzers—including the N9040B UXA, N9030A/B PXA, N9020A/B MXA, and N9010A/B EXA—via USB plug-and-play connectivity, enabling automatic amplitude correction, conversion loss compensation, and LO path loss adjustment. These smart features significantly reduce setup complexity and enhance measurement accuracy across telecommunications, radar, and scientific research applications requiring wideband millimeter-wave signal characterization.
Technical Specifications
Frequency Range: 75 GHz to 110 GHz
Conversion Loss: Maximum 27 dB, with performance optimized for improved DANL and TOI
Intermediate Frequency Bandwidth: Approximately 1.2 GHz (Normal and Dual Conversion paths)
Local Oscillator: Automatic amplitude adjustment to compensate for cable loss up to 10 dB; automatic alignment at startup
Connectors: Waveguide input, 10 MHz reference BNC, LO/IF SMA, USB
– Key Features
• Harmonic mixing with support for multiple harmonic orders and automatic default LO selection
• Vector correction data (magnitude and phase) for improved EVM measurements
• Three operation modes: Normal Path (I/Q measurements), Dual Conversion Path (wideband swept measurements with wide image-free range), and Auxiliary Equipment Path (external downconversion to user-defined IF)
• Automatic mixer model/serial detection and default frequency range assignment
• Temperature and time-dependent automatic recalibration
– Typical Applications
• Telecommunications signal analysis in millimeter-wave bands
• Radar system characterization and testing
• Scientific research requiring extended-range frequency analysis
– Compatibility & Integration
Direct USB integration with Keysight X-Series signal analyzers provides plug-and-play operation, automatic amplitude correction, conversion loss data transfer, and LO path loss compensation without manual adjustment.
