Agilent/Keysight 85059B

The Keysight 85059B is a precision mechanical calibration kit designed to establish high-accuracy reference standards for vector network analyzer systems. It delivers calibrated Open, Short, and Load (OSL) standards across DC to 120 GHz, enabling traceable measurements on 50-ohm systems equipped with 1.0 mm connectors. The kit employs a data-based calibration model - derived from theoretical calculations or high-accuracy S-parameter measurements - to achieve superior accuracy compared to polynomial approaches.

Technical Specifications

• Frequency Range: DC to 120 GHz


• Impedance: 50 Ohms


• Connector Type: 1.0 mm (male and female) with air dielectric interface


• Calibration Standards: Open, Short, and Load (OSL)

Offset Opens: male and female pairs

Offset Shorts: four lengths (Short 1, 2, 3, 4) covering DC to 120 GHz in both male and female configurations

Lowband Loads: male and female pairs

• Calibration Model: Data-based (theoretical or measured S-parameters)


• Connector Torque: 45 N-cm (4 in-lb) ±5.4 N-cm (±0.5 in-lb)


• Operating Temperature: +20 °C to +26 °C


• Storage Temperature: −40 °C to +75 °C

Key Features

• Adapter set includes male-male, female-female, and male-female configurations for flexible interconnectivity


• Slotted female contacts engineered to accommodate 1.0 mm connector constraints while maintaining distinct electrical models


• Outer conductor engagement design ensures repeatable mating before center conductor contact


• Included accessories: calibration certificate, form-tracking recalibration label, dual torque wrenches (4 in-lb and 14 mm handle variants), 6 mm open-end wrench, 10x magnifying glass, and plastic storage case

Typical Applications

• VNA calibration across microwave and mmWave frequency bands


• Laboratory metrology and RF component characterization


• Enterprise measurement systems requiring traceable standards

Compatibility & Integration

• Keysight PNA series network analyzers


• Systems with 1.0 mm connectors and 50-ohm impedance