Agilent/Keysight 85140B

The Keysight 85140B is a coaxial short that establishes precise measurement planes in 50-ohm systems by providing known reflection phase and magnitude. This calibration standard is essential for accurate network analyzer measurements in RF and microwave applications.

Technical Specifications

• Product Type: Coaxial Short


• Connector Type: 2.4 mm Female


• Impedance: 50 Ohm


• Frequency Range: Up to 50 GHz (2.4 mm connector capability)

Key Features

• Establishes measurement planes with precisely defined reflection characteristics


• Uses 2.4 mm connector - a precision interface developed jointly by HP, Amphenol, and M/A COM


• Thick outer wall and strengthened female fingers reduce connector wear compared to SMA and 2.92 mm designs


• Suitable for high-frequency calibration and verification tasks

Typical Applications The 85140B functions as a calibration standard for network analyzer systems. It has a known short impedance reference required for establishing accurate measurement planes during S-parameter characterization, impedance measurements, and system calibration procedures in microwave test environments.

Compatibility & Integration Designed for use with network analyzers equipped for 2.4 mm connectors. The female 2.4 mm interface can be adapted to SMA, 3.5 mm, and 2.92 mm connectors through precision adapters, enabling integration into diverse measurement systems. The 85140B extends network analyzer capabilities across complex RF and microwave applications.