Agilent/Keysight Y1903B

The Keysight Y1903B is a precision coaxial adapter that bridges 1.0 mm ruggedized and 2.92 mm standard connectors for high-frequency measurement applications. Operating across DC to 40 GHz, this adapter enables seamless integration between ruggedized on-wafer interfaces and standard coaxial test equipment, delivering 0.2 dB typical insertion loss with 24 dB return loss across the full bandwidth.

– Technical Specifications

• Frequency Range: DC to 40 GHz
• Impedance: 50 Ohms
• Insertion Loss: 0.2 dB (typical)
• Return Loss: 24 dB
• Maximum CW Power: 10 W
• Connector Repeatability: 1.0 mm at -35 dB; 2.92 mm at -40 dB
• Operating Temperature: +0 °C to +55 °C
• Storage Temperature: -40 °C to +75 °C
• Operating Humidity: 0 to 80% (non-condensing)
• Storage Humidity: 0 to 90%
• Operating/Storage Altitude: < 15,000 meters

– Key Features

• Female 1.0 mm ruggedized connector with -35 dB repeatability for durable on-wafer connections
• Female 2.92 mm standard connector (IEEE 287 compliant) with -40 dB repeatability
• Low insertion loss of 0.2 dB maintains signal integrity across microwave and millimeter-wave frequencies
• 50 Ohm characteristic impedance ensures impedance matching throughout the connection chain
• Rated for 10 W CW power handling in continuous measurement scenarios
• Temperature range from 0 °C to 55 °C during operation supports laboratory and field environments

– Typical Applications

• On-wafer probing and characterization of high-frequency devices
• Component measurement and verification up to 40 GHz
• Integration with ruggedized test fixtures requiring standard coaxial interconnects
• Multiport network analysis and S-parameter measurement

– Compatibility & Integration

The Y1903B interfaces directly with ruggedized 1.0 mm female connectors and IEEE 287-compliant 2.92 mm female connectors. This dual-connector architecture facilitates integration into existing test benches combining on-wafer and coaxial measurement capabilities without adapter cascading.