Agilent/Keysight W281ES

The Keysight W281ES is an in-line coaxial-to-waveguide adapter that bridges ruggedized 1.0 mm coaxial connectors to WR-10 waveguide ports across the W-band frequency spectrum. Designed for precision measurement systems, this adapter delivers metrology-grade performance with insertion loss of 0.6 dB typical and return loss of 20 dB typical. The waveguide port incorporates an anti-cocking ring and precision alignment holes to ensure repeatable, accurate connections for calibration standards and measurement applications.

– Technical Specifications

• Frequency Range: 75 GHz to 110 GHz (W-band)
• Coaxial Connector: Ruggedized 1.0 mm female
• Waveguide Port: WR-10
• Return Loss: ≥16 dB (20 dB typical)
• Insertion Loss: ≤0.8 dB (0.6 dB typical)

– Key Features

• Metrology-grade waveguide interface with outer anti-cocking ring for repeatable connections
• Precision alignment holes engineered for accurate standard connection
• Ruggedized 1.0 mm connector design for reliability in demanding environments
• Direct in-line adapter configuration for efficient component integration

– Typical Applications

• Millimeter wave vector network analyzer systems
• W-band calibration and measurement setups
• Interconnection of coaxial test ports to waveguide devices

– Compatibility & Integration

The W281ES mates ruggedized 1.0 mm male connectors (found on measurement instruments) to WR-10 waveguide ports. This adapter integrates directly into W-band measurement systems requiring precise coaxial-to-waveguide conversion across 75 to 110 GHz.