The Agilent/Keysight 85555A is a millimeter-wave source module designed to extend spectrum analyzer capabilities into the 33 to 50 GHz band. Driven by external microwave sources, it generates leveled test signals with +3 dBm output power and ±2.00 dB accuracy. The module supports external pulse, AM, and FM modulation, making it suitable for dynamic range measurements and mixer LO applications across millimeter-wave test systems.
– Technical Specifications
• Frequency Range: 33 to 50 GHz
• Output Leveled Power: +3 dBm
• Output Level Accuracy: ±2.00 dB
• Harmonic Spurious Signals: −20 dBc at maximum specified power
• Non-harmonic Spurious Signals: −50 dBc at maximum specified power
• Modulation: External pulse, AM, FM
• Output Connector: UG-383 flange, WR-28
• Dimensions: 80 mm (W) × 80 mm (H) × 210 mm (D)
• Weight: 4 lb
– Key Features
• Millimeter-wave signal generation across Ka-band frequencies
• Low spurious performance: harmonic signals at −20 dBc and non-harmonic at −50 dBc
• Leveled output maintains ±2.00 dB power accuracy
• Multiple modulation formats support diverse measurement scenarios
• Compact form factor for bench and integrated test configurations
– Typical Applications
• Frequency response and dynamic range measurements in millimeter-wave systems
• Mixer local oscillator (LO) operation at Ka-band frequencies
• RF and microwave component characterization
• Spectrum analyzer extension into millimeter-wave bands
– Compatibility & Integration
The 85555A connects via WR-28 waveguide (UG-383 flange) and operates when driven by external microwave sources. Integration requires systems capable of accommodating the specified output connector and 33 to 50 GHz frequency range.
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