The Keysight Y1901B is a precision coaxial adapter that connects 1.0 mm ruggedized (female) and 1.85 mm (female) connectors for high-frequency measurements up to 67 GHz. Designed for 50-ohm impedance systems, this adapter maintains signal integrity across DC to 67 GHz with minimal insertion loss and reflection.
Technical Specifications
• Frequency Range: DC to 67 GHz
• Impedance: 50 ohms
• Connector 1: 1.0 mm ruggedized (female)
• Connector 2: 1.85 mm (female)
• Insertion Loss (Typical): 0.5 dB
• Return Loss: 20 dB
• Maximum CW Power: 10 W
• Repeatability – 1.0 mm connector: −35 dB
• Repeatability – 1.85 mm connector: −40 dB – Key Features The ruggedized 1.0 mm connector design enhances durability in demanding measurement environments. Low insertion loss of 0.5 dB ensures efficient signal transmission with minimal degradation. Return loss of 20 dB indicates controlled impedance matching across the frequency band. The adapter handles up to 10 W continuous-wave power, suitable for moderate-power test applications. – Typical Applications The Y1901B serves coaxial device characterization at millimeter-wave frequencies. It accommodates on-wafer and coaxial measurement setups where transition between 1.0 mm and 1.85 mm connectors is required. The high-frequency capability and low-loss performance make it suited for component testing in the 40–67 GHz range. – Compatibility & Integration This adapter integrates directly into measurement systems using 1.0 mm ruggedized and 1.85 mm connector interfaces. It is suitable for on-wafer probing applications and laboratory coaxial test benches. The 50-ohm design ensures compatibility with standard RF/microwave instrumentation.
