The Agilent/Keysight X752D is a waveguide directional coupler for precision microwave measurements across the X-band spectrum. Built on a conventional multi-hole design, it delivers low SWR and high coupling accuracy suitable for attenuation measurements, reflectometer setups, power measurements, source leveling, and network analysis. Each unit is swept-frequency tested to verify main guide SWR and directivity specifications. Performance remains stable across humidity, temperature, and time variations, qualifying it for microwave standards applications.
Technical Specifications
• Frequency Range: 8.2 to 12.4 GHz
• Coupling Factor: 20 dB
• Directivity: Greater than 40 dB
• Main Guide SWR: Typically 1.05
• Auxiliary Arm SWR: Typically 1.15
• Coupling Accuracy (Mean): ±0.4 dB
• Coupling Variation vs. Frequency: Typically ±0.5 dB
• Power Handling: 100 W (CW)
• Waveguide: WR90 with UG-135/U flange
• Length: 399 mm (15.69 in)
• Weight: 1.4 kg (3 lb)
– Key Features
• Conventional multi-hole design minimizes SWR and maximizes coupling accuracy
• Swept-frequency testing validates performance across the entire 8.2–12.4 GHz band
• Low insertion loss on main transmission line with minimal auxiliary arm reflection
• Performance independent of humidity, temperature, and aging
• Tested directivity exceeds 40 dB across operating frequency range
– Typical Applications
• Attenuation measurements
• Reflectometer setups
• Power measurements
• Source leveling
• Network analysis
• Microwave standards measurements
– Compatibility & Integration
WR90 waveguide with UG-135/U flange connectors. Status: Obsolete—no direct replacement identified.


















