Agilent/Keysight 85540B

The Agilent/Keysight 85540B is a 40 GHz Standard CalPod for ambient temperature benchtop operation. It enables rapid calibration refresh of network analyzers without disturbing the device under test or reconnecting standards, improving measurement accuracy and efficiency across multi-port and multi-path applications.

Technical Specifications

• Frequency Range: 500 MHz to 40 GHz


• Connector Type: 2.92 mm


• Operating Temperature: +20 °C to +30 °C


• Typical Amplitude Re-correction: ±0.05 dB


• Typical Phase Re-correction: ±1.5°


• Typical Directivity Re-correction: −38 dB


• Included Drive Cable: 2 meters

Key Features

• Quick calibration refresh without DUT removal or standard reconnection


• Supports up to 48 controlled CalPods with simultaneous recorrection of four units


• 2.92 mm connectors for broad RF compatibility


• Optional 85554A CalPod Drive Cable Extension (10 meters) for extended control distances


• Can be characterized with an ECal module to function as an ECal module for simplified multi-port measurements

Compatibility & Integration The 85540B integrates with Keysight PNA family network analyzers including PNA-X N524xB, PNA N522xB, and PNA-L N523xB series, as well as PXIe vector network analyzers. Operation requires the 85523B CalPod Controller and specific CalPod firmware. The controller accepts autoranging line voltage input with ±10% nominal voltage tolerance, enabling flexible benchtop deployment across diverse laboratory environments.