The Keysight 11901C is a metrology-grade coaxial adapter that enables precise signal interfacing between 2.4 mm male and 3.5 mm female connectors in RF and microwave test systems. Operating from DC to 26.5 GHz, this adapter delivers superior signal integrity through exceptional RF performance metrics: return loss exceeding 32 dB and repeatability of -54 dB. These specifications make it ideal for applications demanding minimal signal degradation and measurement accuracy. The compact form factor—electrical length of 16.1 mm, overall length of 20.2 mm, and 9.0 mm diameter—enables integration into high-density test configurations without compromising performance or introducing significant phase shift into signal paths.
Technical Specifications
• Connector Configuration: 2.4 mm male to 3.5 mm female
• Frequency Range: DC to 26.5 GHz
• Return Loss: > 32 dB
• Repeatability: -54 dB
• Electrical Length: 16.1 mm (0.63 in)
• Overall Length: 20.2 mm (0.80 in)
• Diameter: 9.0 mm (0.35 in)
• Material Compliance: RoHS Compliant
– Key Features
• High return loss specification ensures minimal signal reflection across the frequency band
• -54 dB repeatability supports consistent performance in automated test sequences
• Compact dimensions facilitate placement in restricted measurement rack configurations
• DC-coupled design enables both AC and DC signal measurements
– Typical Applications
• RF and microwave signal conditioning in automated test equipment (ATE)
• Impedance matching and connector transition in measurement systems
• Component characterization and network analysis workflows
• Signal routing in multi-port test benches
– Compatibility & Integration
The 11901C integrates directly with 2.4 mm and 3.5 mm coaxial systems, enabling compatibility with Keysight signal analyzers, network analyzers, and other RF/microwave instrumentation. The adapter’s metrology-grade specifications support traceable measurement environments and demanding calibration procedures.
