The Agilent/Keysight 11664C is a detector adapter that interfaces standard AC diode detectors with scalar network analyzers, enabling measurement of modulated RF test signals. Designed for the HP 8765A and 8757A platforms, this adapter extends analyzer measurement capability by leveraging external diode detector performance. The 11664C provides a 50 ohm interface with Type N male connector and 122 cm cable assembly, allowing network analyzers to characterize modulated signals across the frequency range supported by the connected detector.
Technical Specifications
• Impedance: 50 ohms
• Maximum Input Voltage: 10V
• Connector Type: Type N male
• Cable Length: 122 cm (4 feet)
– Key Features
The adapter maintains 50 ohm characteristic impedance throughout the signal path. Its compact design integrates directly with standard diode detector modules. The 122 cm cable length provides convenient spacing between the network analyzer and test point. Input voltage rating of 10V accommodates typical diode detector output levels.
– Typical Applications
• Signal monitoring and power level quantification for modulated RF signals
• Power leveling control in RF and microwave systems
• Automated test sequences using scalar network analyzers in production and R&D environments
• Frequency range extension beyond native analyzer capabilities through detector selection
– Compatibility & Integration
The 11664C is engineered specifically for integration with HP 8765A and HP 8757A scalar network analyzers. Operation requires pairing with standard AC diode detectors. This combination allows these analyzers to measure modulated test signals and characterize RF power performance across extended frequency ranges determined by the detector specifications.
