The Keysight E281DS is an in-line coaxial-to-waveguide adapter that bridges 1.0 mm male coaxial connectors to WR-12 waveguide ports for E-band signal analysis. Operating across the 60 GHz to 90 GHz frequency range, this adapter enables direct connection and characterization of waveguide devices without requiring additional conversion stages. The UG-387/U anti-cocking flange ensures repeatable waveguide alignment and connection integrity.
Technical Specifications
• Frequency Range: 60 GHz to 90 GHz (E-band)
• Coaxial Port: 1.0 mm male
• Waveguide Port: WR-12 with UG-387/U anti-cocking flange
• Typical Insertion Loss: 0.7 dB
• Typical Return Loss: 16 dB
• Maximum CW Power: 10 W
– Key Features
• In-line adapter configuration for direct coaxial-to-waveguide interfacing
• Low insertion loss of 0.7 dB minimizes signal degradation across the E-band
• 16 dB return loss provides adequate impedance matching for measurement accuracy
• 10 W CW power handling supports both passive device characterization and active system testing
• Anti-cocking flange design prevents misalignment and ensures consistent performance across multiple connections
– Typical Applications
The E281DS serves measurement and characterization workflows in the E-band spectrum. Common uses include waveguide component analysis, signal path validation in millimeter-wave systems, and integrated measurement setups requiring coaxial-to-waveguide transitions. The adapter extends the measurement reach of existing instrumentation into WR-12 waveguide networks.
– Compatibility & Integration
• Waveguide Standard: WR-12
• Coaxial Connector Standard: 1.0 mm male
The adapter’s in-line design permits direct insertion into measurement chains without additional mechanical fixtures or alignment aids.
