The Agilent/Keysight X281A is a waveguide-to-coaxial adapter that bridges WR-90 waveguide transmission lines to 50-ohm Type-N female connectors across the X-band frequency spectrum. This bidirectional component enables efficient power transmission between waveguide and coaxial systems in test, measurement, and scientific applications where impedance matching and signal integrity are critical.
Technical Specifications
• Frequency Range: 8.2 GHz to 12.4 GHz
• Waveguide Designator: EIA WR-90 per MIL-W-85/1-078 (MIL-W-85/1-077 compatible)
• Flange Type: UG-135/U per MIL-F-3922/54C-008
• Coaxial Connector: Type-N female
• Maximum SWR: 1.25
• Power Transmission: Bidirectional
– Key Features
• Low SWR performance (1.25 maximum) ensures efficient signal transfer across the X-band operating range.
• Superior RF performance across the full 8.2 GHz to 12.4 GHz bandwidth.
• Standard MIL-spec waveguide and coaxial interfaces provide reliable mechanical and electrical connection to established test equipment ecosystems.
– Typical Applications
• RF and microwave measurement systems requiring waveguide-to-coaxial interfacing.
• Electronic and scientific testing where X-band signal routing between transmission line types is necessary.
• Power transmission applications benefiting from bidirectional signal flow.
– Compatibility & Integration
The X281A interfaces directly with WR-90 waveguide systems via UG-135/U flanges and connects to 50-ohm coaxial infrastructure through its Type-N female connector. This dual-interface design enables straightforward integration into mixed-transmission-line test benches without additional adapters.
