The TEKTRONIX WM782A is an external harmonic mixer for downconversion of millimeter-wave signals in the 26.5 GHz to 40 GHz band. It extends spectrum analyzer measurement capabilities beyond internal mixer limits by accepting high-frequency RF inputs via WR-28 waveguide and delivering downconverted IF signals suitable for analysis and power measurement. The WM782A employs an anti-parallel dual-diode architecture with zero DC bias and typical 20 dB conversion loss.
Technical Specifications
• Frequency Range: 26.5 GHz to 40 GHz
• Waveguide Type: WR-28 (EIA)
• Flange Type: UG-599/U
• Sensitivity: -115 dBm (typical, 1 kHz resolution bandwidth)
• Conversion Loss: 20 dB (typical)
• LO/IF Cut-off Frequency: 16 GHz
• 1 dB Compression Point: 0 dBm
• Diode Configuration: Anti-parallel dual-diode
• Bias: Zero DC Bias
• Construction: Precision gold-plated brass core with LEXAN protective shell
• Dimensions: 9.525 × 2.54 × 4.32 inches
• Weight: 113.4 grams
– Key Features
• Direct WR-28 waveguide RF input with UG-599/U flange
• Enables spectrum analysis of millimeter-wave frequencies up to 40 GHz
• Precision gold-plated brass construction for stability and low insertion loss
• Zero DC bias operation simplifies integration with external LO sources
– Typical Applications
• Spectrum analysis and power level measurements at millimeter-wave frequencies
• Swept frequency response characterization
• Harmonic frequency conversion and up/down conversion tasks
– Compatibility & Integration
Designed for integration with Tektronix 2780-series spectrum analyzers including the 2782 and 2784 models. External diplexers may be required for compatibility with non-Tektronix analyzers. Optional coaxial cable part number 012-1346-00 available for system integration.
