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.
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