Agilent/Keysight W281CS

The Agilent/Keysight W281CS is a precision in-line coaxial-to-waveguide adapter engineered for W-band test and measurement systems. It bridges 1.0 mm coaxial connectors to WR-10 waveguide interfaces, enabling direct measurement of waveguide devices across the 75 GHz to 110 GHz frequency range. The adapter delivers consistent performance with minimal signal degradation in high-frequency test setups.

– Technical Specifications

• Frequency Range: 75 GHz to 110 GHz (W-band)
• Coaxial Connector: 1.0 mm female
• Waveguide Interface: WR-10 flange
• Insertion Loss (Typical): 0.7 dB
• Return Loss (Typical): 16 dB
• Maximum CW Power: 10 W

– Key Features

• In-line configuration minimizes system integration complexity
• Typical insertion loss of 0.7 dB preserves signal integrity across the band
• 16 dB return loss ensures good impedance matching at both interfaces
• Handles up to 10 W continuous-wave power for high-power measurement applications
• Designed for direct transition between coaxial test equipment and waveguide components

– Typical Applications

• W-band component characterization and device testing
• High-frequency network analysis requiring coaxial-to-waveguide conversion
• Millimeter-wave measurement systems operating between 75 GHz and 110 GHz
• Waveguide device evaluation in research and production environments

– Compatibility & Integration

The W281CS connects standard 1.0 mm female coaxial connectors—commonly found on laboratory RF test equipment—directly to WR-10 waveguide flanges. This adapter suits any test configuration requiring seamless interfacing between coaxial transmission lines and WR-10 waveguide systems operating within the W-band spectrum.