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.