Agilent/Keysight R11644A

The Keysight R11644A is a precision mechanical calibration kit engineered for WR-28 waveguide network analyzers operating across 26.5 GHz to 40 GHz. It delivers systematic error correction using Thru-Reflect-Line (TRL) calibration methodology, enabling accurate characterization and verification of network analyzer performance in the Ka-band region.

The kit supplies a complete standard set: precision airline, flush short circuit, precision shim, and fixed termination, each validated to support repeatable calibration procedures. All components are accompanied by a commercial calibration certificate.

– Technical Specifications

• Frequency Range: 26.5 GHz to 40 GHz
• Waveguide Size: WR-28
• Termination Return Loss: Greater than 42 dB across operating frequency range
• Standard Section Return Loss: Greater than 42 dB across operating frequency range
• Short Flatness: ±0.008 mm
• Operating Temperature: +20 °C to +26 °C (calibration standards specification)
• Measurement Calibration Temperature Drift Tolerance: ±1 °C with error correction enabled
• Storage Temperature Range: −40 °C to +75 °C
• Operating Humidity: 0% to 80% at 40 °C, non-condensing
• Storage Humidity: 0% to 90%
• Operating Altitude: <4,500 meters
• Storage Altitude: 42 dB) ensures minimal reflection errors
• Precision mechanical tolerances support accurate phase and magnitude correction
• Quarter-wavelength shims enable flexible calibration configurations
• Commercial calibration certificate included for traceability

– Typical Applications

• Network analyzer error correction and verification
• Waveguide component characterization at Ka-band frequencies
• Calibration validation for S-parameter measurements
• System error removal in cascade and insertion loss measurements

– Compatibility & Integration

The R11644A integrates with Keysight PNA and ENA series network analyzers equipped with WR-28 waveguide ports. Standard connectors and geometry ensure direct implementation into established measurement routines.