The Agilent/Keysight 773D is a broadband directional coupler engineered for RF and microwave signal monitoring, power leveling, and reflectometer measurements across 2 GHz to 18 GHz. Designed for research, development, manufacturing, and laboratory applications, this instrument delivers stable performance across wide frequency sweeps with a single test configuration.
Technical Specifications
Frequency & Coupling Performance
• Frequency range: 2 GHz to 18 GHz
• Nominal coupling: 20 dB
• Maximum coupling variation: ±1.0 dB to ±1–2 dB
• Directivity: 30 dB (2–12.4 GHz); 27 dB (12.4–18 GHz)
Impedance & Signal Integrity
• Main line VSWR: 1.21:1 (2–12.4 GHz); 1.27:1 (12.4–18 GHz)
• Coupled line VSWR: 1.30:1 (2–12.4 GHz); 1.40:1 (12.4–18 GHz)
• Maximum insertion loss: 0.9 dB (2–18 GHz)
Power Handling
• Average power: 50 W (2–18 GHz)
• Peak power: 250 W
Physical Interface
• Connectors: Type N (Female) for all ports (standard Option 001); APC-7 input/output with Type N coupled port available
• Dimensions: 18.4 cm L × 10.5 cm W × 3.0 cm H
• Weight: 0.8 kg
– Key Features
• Flat response across full 2–18 GHz band supports broadband swept measurements without recalibration
• Stable directivity rating maintains measurement accuracy in reflectometer applications
• Low insertion loss minimizes signal degradation in leveling circuits
• High peak power handling enables use in both test and production environments
• Compact form factor accommodates space-constrained test benches
– Typical Applications
• Reflectometer measurements and impedance characterization
• Power leveling in RF signal chains
• Power and attenuation measurements
• Network analysis and microwave component testing
– Compatibility & Integration
Standard Type N connectors ensure compatibility with existing RF test equipment. APC-7 connector option available for precision measurement systems requiring enhanced repeatability.
