The Agilent/Keysight 766D is a dual-directional coupler for RF and microwave signal routing across the 940 MHz to 1975 MHz band. It isolates, separates, and combines RF/microwave signals while enabling simultaneous forward and reverse power monitoring, source leveling, and swept transmission/reflection measurements. With 20 dB nominal coupling, greater than 40 dB directivity, and insertion loss below 0.35 dB, the 766D delivers precision signal separation in demanding measurement applications.
Technical Specifications
• Frequency Range: 940 MHz to 1975 MHz
• Type: Dual-Directional Coupler
• Nominal Coupling: 20 dB
• Directivity: Greater than 40 dB
• Insertion Loss: Less than 0.35 dB
• Maximum SWR: 1.15
• Coupling Amplitude Variation: ±1 dB
• Auxiliary Arm Tracking: ±0.3 dB
• Average Power Rating: 50 W
• Peak Power Rating: 500 W
• Connectors: Type N (male and female on primary line; female on auxiliary arms)
– Key Features
• High directivity performance exceeds 40 dB for superior forward/reverse signal isolation
• Low insertion loss maintains signal integrity across the operating band
• SWR of 1.15 ensures minimal reflections and impedance matching
• Compact form factor: approximately 160 mm length × 45 mm width × 59 mm height
• Dual-arm configuration supports simultaneous measurement of incident and reflected waves
• ±1 dB coupling flatness across the operating range
– Typical Applications
• Reflectometer measurements
• Forward and reverse power monitoring
• Source leveling and automatic level control
• Swept transmission and reflection measurements
• Signal source isolation
– Compatibility & Integration
Type N connectors comply with MIL-C-39012 and MIL-C-71 standards. The 766D integrates into test systems requiring precision RF signal separation and simultaneous incident/reflected power detection.
