The HP/Agilent 11692D is a coaxial dual-directional coupler operating from 2 GHz to 18 GHz, designed for simultaneous monitoring of incident and reflected signals with minimal insertion loss. It provides accurate sampling of both reflection and transmission parameters, making it essential for broadband reflectometry, signal routing, and power measurement applications. The coupler delivers 20 dB nominal coupling with directivity of 30 dB across 2–8 GHz and 26 dB from 8–18 GHz, ensuring reliable performance in demanding test environments.
Technical Specifications
• Frequency Range: 2 GHz to 18 GHz
• Nominal Coupling: 20 dB
• Coupling Variation (incident to test port): ±1 dB maximum
• Directivity:
– 2 to 8 GHz: 30 dB minimum
– 8 to 18 GHz: 26 dB minimum
– With Type-N test port connector: 24 dB minimum
• Primary Line SWR (50 Ω):
– 2 to 12.4 GHz: 1.3 maximum
– 12.4 to 18 GHz: 1.4 maximum
• Auxiliary Ports SWR: 1.3 maximum
• Impedance: 50 Ω nominal
• Weight: 5 lbs (approximate)
• Dimensions: 8 × 6 × 4 in (approximate)
– Key Features
• Dual-directional architecture enables simultaneous reflection and transmission measurements
• Stable coupling factor and excellent directivity across the full frequency band
• Multiple connector configurations available: N-type and APC-7 combinations on input, output, and auxiliary ports
• Stainless steel Type-N and APC-7 connectors rated for durability in field and laboratory use
• Low insertion loss minimizes signal degradation in cascaded measurement systems
– Typical Applications
• Broadband reflectometry measurements
• Power measurements and signal monitoring
• Signal routing and system monitoring
• Leveling applications for broadband sources
• Swept-frequency network analysis and impedance characterization
– Compatibility & Integration
The 11692D integrates with HP/Agilent coaxial detectors and power measurement instruments, including the HP 8755 frequency response test set, HP 8474 series detectors, and HP 438A dual power meter. It operates alongside the 11691D single-directional coupler for applications requiring alternative coupling configurations.

















