Keysight Technologies 85059B, Руководство по эксплуатации и обслуживанию

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Keysight 85059B Operation and Service Guide 1-5
General Information
Calibration Kit Overview
Refer to Table 6-1 on page 6-2 and Figure 6-1 on page 6-3 for a complete list
of kit contents and their associated part numbers.
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.
This construction provides for extremely repeatable connections. The offset
opens have inner conductors that are supported by a strong, low dielectric
plastic to provide repeatability and reliability. Both the opens and shorts are
constructed so that the pin depth can be controlled very tightly, thereby
minimizing phase errors. The length of the offset opens are designed so that
the difference in phase of their reflection coefficients is approximately 180° at
all frequencies, with respect to offset short 2.
How to Identify Devices
The shorts, opens, and loads in the kit are identified by the number of rings (or
bands) around the body of the device.
— lowband loads have no rings or bands
— 1.3 mm offset short has 1 ring or band and is identified as Short 1
— 2.45 mm offset short has 2 rings or bands and is identified as Short 2
— 3.326 mm offset short has 3 rings or bands and is identified as Short 3
— 4.039 mm offset short has 4 rings or bands and is identified as Short 4
— offset open has 3 rings and is designed to be 180 degrees out of phase with
Short 2. In addition, the offset open has a rounded edge to help distinguish
it from the shorts (see Figure 1-1 ).
Figure 1-1 OPEN Calibration Devices: 85059B
Adapters
Like the other devices in the kit, the adapters are built to very tight tolerances
to provide good broadband performance and to ensure stable, repeatable
connections.