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85054B 1-3
General Information
Calibration Kit Overview
Lowband Loads
The lowband loads are metrology-grade, 50 ohm terminations which have been optimized
for lowband performance up to 2 GHz. The rugged internal structure provides for highly
repeatable connections. A distributed resistive element on sapphire provides excellent
stability and return loss.
Sliding Loads
The sliding loads in this kit are designed to provide excellent performance from 3 GHz to
18 GHz. The inner and outer conductors of the airline portion are precision machined to
state-of-the-art tolerances. Although the sliding load has exceptional return loss, its
superior load stability qualifies it as a high-performance device.
The sliding load was designed with the ability to extend the inner conductor for connection
purposes and then pull it back to a preset pin depth. This feature is critical since it
minimizes the possibility of damage during the connection, while maintaining a minimum
pin depth to optimize performance.
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.
Calibration Definitions
The calibration kit must be selected and the calibration definitions for the devices in the
kit installed in the network analyzer prior to performing a calibration. Refer to your
network analyzer user’s guide for instructions on selecting the calibration kit and
performing a calibration.
The calibration definitions can be:
• resident within the analyzer
• loaded from the provided disk
• entered from the front panel
Installation of the Calibration Definitions
The calibration definitions for the kit may be permanently installed in the internal
memory or hard disk of the network analyzer.
If the calibration definitions for the kit are not permanently installed in the network
analyzer, they must be manually entered. Refer to your network analyzer user’s guide for
instructions.
Equipment Required but Not Supplied
Connector cleaning supplies and various electrostatic discharge (ESD) protection devices
are not supplied with the calibration kit but are required to ensure successful operation of
the kit. Refer to Table 6-2 on page 6-4 for ordering information.