The Keysight 87300C is a coaxial directional coupler engineered for RF and microwave signal monitoring and leveling across 1 GHz to 26.5 GHz. This compact broadband component delivers stable 10 dB nominal coupling with ±1 dB variation and ±0.5 dB frequency sensitivity, making it suitable for precision test setups where signal extraction and measurement are critical.
Technical Specifications
Frequency Range: 1 GHz to 26.5 GHz
Coupling: 10 dB nominal with ±1 dB variation across the band
Directivity:
• 14 dB from 1 GHz to 12.4 GHz
• 12 dB from 12.4 GHz to 26.5 GHz
Insertion Loss:
• Less than 1.2 dB to 12.4 GHz
• Less than 1.7 dB to 26.5 GHz
VSWR:
• 1.35:1 to 12.4 GHz
• 1.50:1 to 26.5 GHz
Power Ratings:
• Average: 20 W
• Peak: 3 kW
Connectors: 3.5 mm female
Physical: 4 × 1 × 1 in, 60 g
– Key Features
• Broadband performance spanning near-DC microwave frequencies to K-band
• Low insertion loss maintains system efficiency across the operating range
• Controlled directivity supports high-accuracy signal separation and monitoring
• Compact form factor integrates into benchtop and rack-mount measurement systems
• Peak power handling to 3 kW supports both CW and pulsed applications
– Typical Applications
• Signal monitoring and extraction in RF/microwave test systems
• Signal leveling when combined with external coaxial detectors
• Microwave test interface unit designs
• Integration into benchtop measurement stations
– Compatibility & Integration
The 87300C is available in commercial and military grades. The 3.5 mm connector interface ensures compatibility with standard microwave test equipment and component assemblies.
