The Keysight 11922D is a precision coaxial adapter that bridges 1.0 mm (female) and 2.4 mm (male) connectors, extending millimeter-wave test system capabilities to 50 GHz. This adapter enables accurate measurement of coaxial devices and 50 ohm components across both on-wafer and coaxial test configurations, reducing the number of direct connections to test ports while preserving measurement integrity.
Technical Specifications
• Frequency Range: DC to 50 GHz
• Impedance: 50 ohms
• Insertion Loss: 0.7 dB (typical)
• Return Loss: 20 dB (typical)
• Maximum CW Power: 10 W
• Connector Repeatability: -35 dB (1.0 mm), -44 dB (2.4 mm)
– Key Features
The air dielectric interface with low-loss plastic bead center conductor support minimizes signal degradation across the measurement bandwidth. Typical insertion loss of 0.7 dB and return loss of 20 dB ensure reliable performance in demanding test environments. The adapter handles up to 10 W CW power, accommodating most laboratory and production test scenarios. Connector repeatability specifications of -35 dB and -44 dB support reproducible measurements across multiple mating cycles.
– Typical Applications
Designed for research, development, and quality assurance laboratories where precise RF and microwave measurements are required. The adapter suits on-wafer characterization, coaxial device testing, and systems operating at millimeter-wave frequencies. It is compatible with 85/110 GHz and 1 mm test systems, extending platform flexibility without sacrificing accuracy.
– Compatibility & Integration
The 11922D functions as a general-purpose interconnect for systems requiring transition between 1.0 mm and 2.4 mm coaxial interfaces. It integrates with Keysight N5520A millimeter-wave PNA-Series platforms and similar test equipment. The versatile design permits interchangeable deployment across multiple test configurations, eliminating the need for dedicated adapters while maintaining 50 ohm impedance matching throughout the signal path.


















