Agilent Technologies 85052C, User'S And Service Manual

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1-2 85052C
General Information
Calibration Kit Overview
Calibration Kit Overview
The Agilent 85052C 3.5 mm calibration kit is used to calibrate Agilent network analyzers
up to 26.5 GHz for measurements of components with 3.5 mm connectors.
Kit Contents
The 85052C calibration kit includes the following items:
• offset opens and shorts, and broadband load terminations
• short and long airlines with insertion tools
• 3.5 mm precision adapters
• adapter anti-rotation clamps
• 5/16 in, 90 N-cm (8 in-lb) torque wrench
• spanner wrench
• 4-mm hex balldriver
• data disks that contains the calibration definitions of the devices in the calibration kit
Refer to Chapter 6, “Replaceable Parts,” for a complete list of kit contents and their
associated part numbers.
Broadband Loads
The broadband loads are metrology-grade terminations that have been optimized for
performance up to 26.5 GHz. The rugged internal structure provides for highly repeatable
connections. A distributed resistive element on sapphire provides excellent stability and
return loss.
Offset Opens and Shorts
The offset opens and shorts are built from parts that are machined to the current
state-of-the-art in precision machining.
The offset short’s inner conductors have a one-piece construction, common with the
shorting plane. The construction provides for extremely repeatable connections.
The offset opens have inner conductors that are supported by a strong,
low-dielectric-constant plastic to minimize compensation values.
Both the opens and shorts are constructed so that the pin depth can be controlled very
tightly, thereby minimizing phase errors. The lengths of the offsets in the opens and shorts
are designed so that the difference in phase of their reflection coefficients is approximately
180 degrees at all frequencies.
Adapters
Like the other devices in the kit, the adapters are built to very tight tolerances to provide
good broadband performance. The adapters utilize a dual-beaded connector structure to
ensure stable, repeatable connections. The beads are designed to minimize return loss and
are separated far enough so that interaction between the beads is minimized.