Keysight (Agilent) 85059A

The Keysight (Agilent) 85059A is a precision 1.0 mm calibration and verification kit engineered for vector network analyzer systems operating across DC to 110 GHz. This kit delivers the calibration standards and verification components required to establish accurate, traceable measurements in RF and microwave test setups. The 85059A enables two distinct calibration methodologies: Open-Short-Load-Thru (OSLT) calibration from 45 MHz to 50 GHz, and offset-shorts calibration extending to 110 GHz, ensuring optimal VNA performance across the full frequency span.

Technical Specifications

• Frequency Range: DC to 110 GHz


• Connector Type: 1.0 mm


• Impedance: 50 ohms


• Calibration Techniques: OSLT (45 MHz to 50 GHz); offset-shorts (50 GHz to 110 GHz) Load Standards:


• DC to 2 GHz: Return Loss ≥ 30 dB


• 2 GHz to 18 GHz: Return Loss ≥ 30 dB


• 18 GHz to 40 GHz: Return Loss ≥ 26 dB


• 40 GHz to 50 GHz: Return Loss ≥ 24 dB Open Standards (Phase Deviation from Nominal):


• DC to 2 GHz: ±1.0° (Male), ±1.0° (Female)


• 2 GHz to 18 GHz: ±1.5° (Male), ±3.0° (Female)


• 18 GHz to 50 GHz: ±2.5° (Male), ±4.0° (Female)


• 50 GHz to 100 GHz: ≤ 8.0° (Male and Female) Short Standards (Phase Deviation from Nominal):


• DC to 2 GHz: ±0.8° (Male), ±1.0° (Female)


• 2 GHz to 18 GHz: ±1.2° (Male), ±2.0° (Female)


• 18 GHz to 50 GHz: ±1.5° (Male), ±2.5° (Female)

Key Features

• Complete OSLT and offset-shorts calibration standards


• Male and female opens, shorts, and loads included


• Lossy delay line and multiple offset shorts (Short 1, 2, 3, 4)


• Verification devices: mismatched and matched thru adapters


• Coaxial cable assembly and torque wrench (6 mm, 4 in-lb)


• Commercial calibration certificate provided

Compatibility & Integration The 85059A interfaces with 1.0 mm VNA ports and legacy measurement systems. Note: This product is obsolete; the 85059B serves as its current replacement.