Keysight 85052D 3.5 mm
Economy Calibration Kit
User’s and Service
Guide
Notices
CAUTION
WARNING
© Keysight Technologies 1994 - 2014
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Manual Part Number
85052-90079
Edition
August 2014
Printed in Malaysia
Keysight Technologies
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
Warranty
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Safety Notices
A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
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met.
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hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly performed or adhered to, could result
in personal injury or death. Do not
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licensed as “Commercial computer software” as defined in DFAR 252.227-7014
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Contents
1 General Information
Calibration Kit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Calibration Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Equipment Required but Not Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Incoming Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Recording the Device Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Calibration Kits Documented in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Calibration Kit History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
85052D Kits with Serial Prefix 3027A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Precision Slotless Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Clarifying the Terminology of a Connector Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
When to Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 Specifications
Environmental Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Temperature—What to Watch Out For . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Mechanical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Pin Depth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
3 Use, Maintenance, and Care of the Devices
Electrostatic Discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Look for Obvious Defects and Damage First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Inspect the Mating Plane Surfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Inspect Female Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Cleaning Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Gaging Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Connector Gage Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
When to Gage Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Gaging Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
How to Make a Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
How to Separate a Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Handling and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
4 Performance Verification
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
How Keysight Verifies the Devices in Your Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Recertification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
How Often to Recertify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Where to Send a Kit for Recertification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
5 Troubleshooting
Troubleshooting Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
85052D User’s and Service Guide Contents-5
Contents
Where to Look for More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Returning a Kit or Device to Keysight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Contacting Keysight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
6 Replaceable Parts
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
A Standard Definitions
Class Assignments and Standard Definitions Values are Available on the Web. . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Contents-6 85052D User’s and Service Guide
1 General Information
85052D User’s and Service Guide 1- 1
General Information
Calibration Kit Overview
Calibration Kit Overview
The Keysight 85052D 3.5 mm calibration kit is used to calibrate Keysight network analyzers up to 26.5 GHz
for measurements of components with 3.5-mm connectors.
Kit Contents
The 85052D calibration kit includes the following items:
• user’s and service guide
• offset opens and shorts, and broadband loads
• three 3.5 mm adapters
• 5/16 in, 90 N-cm (8 in-lb) torque wrench
• 7 mm open-end wrench
The adapters are primarily intended for use in measuring non-insertable devices, but can also be used as a
connector saver.
Refer to Chapter 6 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-dielectricconstant 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 and to ensure stable, repeatable connections.
The adapters are designed so that their nominal electrical lengths are the same, which allows them to be
used in calibration procedures for non-insertable devices.
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.
1- 2 85052D User’s and Service Guide
General Information
Calibration Kit Overview
The calibration definitions can be:
• resident within the analyzer
• manually entered from the front panel
Class assignments and standard definitions may change as more accurate model and calibration methods
are developed. You can download the most recent class assignments and standard definitions from
Keysight’s Calibration Kit Definitions Web page at
www.na.support.keysight.com/pna/caldefs/stddefs.html.
Refer to your network analyzer user’s guide or embedded Help for instructions on manually entering
calibration definitions, selecting the calibration kit, and performing a calibration.
Equipment Required but Not Supplied
Some items are required or recommended for successful operation of your kit, but are not supplied with the
kit. Refer to Table 6-2 on page 6-3 for a list of these items and for ordering information.
85052D User’s and Service Guide 1-3
General Information
Incoming Inspection
Incoming Inspection
Refer to Chapter 6 to verify a complete shipment. Use Ta b le 1 - 1 to record the serial numbers of all serialized
devices in your kit.
Check for damage. The foam-lined storage case provides protection during shipping. If the case or any
device appears damaged, or if the shipment is incomplete, refer to “Contacting Keysight” on page 5-5.
Keysight will arrange for repair or replacement of incomplete or damaged shipments without waiting for a
settlement from the transportation company. See "Returning a Kit or Device to Keysight," on page 5-4.
Recording the Device Serial Numbers
In addition to the kit serial number, the devices in the kit are individually serialized (serial numbers are
labeled onto the body of each device). Record these serial numbers in
Ta b le 1 - 1 . Recording the serial numbers will prevent confusing the devices in this kit with similar devices
from other kits.
The adapters included in the kit are for measurement convenience only and are not serialized.
Table 1-1 Serial Number Record for the 85052D
Device Serial Number
Calibration kit
Broadband load –m–
Broadband load –f–
Open –m–
Open –f–
Short –m–
Short –f–
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
1- 4 85052D User’s and Service Guide
General Information
Calibration Kits Documented in This Manual
Calibration Kits Documented in This Manual
This manual applies to any 8552B calibration kit with serial number prefix 3106A. If your calibration kit has a
different serial number prefix, refer to the next section for information on how this manual applies.
Calibration Kit History
This section describes calibration kits with serial number prefixes lower that the ones listed on the title
page.
85052D Kits with Serial Prefix 3027A
These calibration kits did not have a calibration constants disk to support the Keysight 8510C network
analyzer. The part numbers provided in this manual are the recommended replacement parts for these kits.
The devices in these kits should meet the specifications published in this manual.
85052D User’s and Service Guide 1-5
General Information
Precision Slotless Connectors
Precision Slotless Connectors
The female 3.5 mm connectors in this calibration kit are metrology-grade, precision slotless connectors
(PSC). A characteristic of metrology-grade connectors is direct traceability to national measurement
standards through their well-defined mechanical dimensions.
Conventional female center conductors are slotted. When mated, the female center conductor is flared by
the male pin. Because physical dimensions determine connector impedance, electrical characteristics of the
female connector (and connection pair) are dependent upon the mechanical dimensions of the male pin.
While connectors are used in pairs, their male and female halves are always specified separately as part of a
standard, instrument, or device under test. Because of these facts, making precision measurements with
the conventional slotted connector is very difficult, and establishing a direct traceability path to primary
dimensional standards is nearly impossible.
The precision slotless connector was developed to eliminate these problems. All PSCs are female. A PSC
incorporates a center conductor with a solid cylindrical shell that defines the outside diameter of the female
center pin. Its outside diameter and, therefore, the impedance in its region does not change. The inner part
provides an internal contact that flexes to accept the allowed range of male pin diameters.
The calibration of a network analyzer having a conventional slotted female connector on the test port
remains valid only when the device under test and all calibration standards have identical male pin
diameters. For this reason PSC test port adapters are supplied in most calibration kits.
Precision slotless connectors have the following characteristics:
• There is no loss of traceable calibration on test ports when the male pin diameter of the connector on the
device under test is different from the male pin diameter of the calibration standard.
• The female PSC and its mating male connector can be measured and specified separately as part of the
device either is attached to.
• All female connectors can have a known, stable impedance based only on the diameters of their inner
and outer conductors.
• Female calibration standards can be fully specified. Their specifications and traceability are unaffected
by the diameter of the male mating pin.
• A fully traceable performance verification is made using a precision 50 ohm airline having a PSC.
• Measurement repeatability is enhanced due to non-changing connector characteristics with various pin
diameters.
With PSCs on test ports and standards, the percentage of accuracy achieved when measuring at 50 dB
return loss levels is comparable to using conventional slotted connectors measuring devices having only 30
dB return loss. This represents an accuracy improvement of about 10 times.
1- 6 85052D User’s and Service Guide
General Information
Clarifying the Terminology of a Connector Interface
Clarifying the Terminology of a Connector Interface
In this document and in the prompts of the PNA calibration wizard, the gender of cable connectors and
adapters is referred to in terms of the center conductor. For example, a connector or device designated as
1.85 mm –f– has a 1.85 mm female center conductor.
8510-series, 872x, and 875x ONLY: In contrast, during a measurement calibration, the network analyzer
softkey menus label a 1.85 mm calibration device with reference to the sex of the analyzer’s test port
connector—not the calibration device connector. For example, the label SHORT(F) refers to the short that is
to be connected to the female test port. This will be a male short from the calibration kit.
Table 1-2 Clarifying the Sex of Connectors: Examples
Terminology Meaning
Short
–f–
Short (f) Male short (male center conductor) to be connected to female port
A connector gage is referred to in terms of the connector that it measures. For instance, a male connector
gage has a female connector on the gage so that it can measure male devices.
Female short (female center conductor)
Preventive Maintenance
The best techniques for maintaining the integrity of the devices in the kit include:
• routine visual inspection
• cleaning
• proper gaging
• proper connection techniques
All of these are described in Chapter 3. Failure to detect and remove dirt or metallic particles on a mating
plane surface can degrade repeatability and accuracy and can damage any connector mated to it. Improper
connections, resulting from pin depth values being out of the observed limits (see Table 2-2 on page 2-4) or
from bad connection techniques, can also damage these devices.
85052D User’s and Service Guide 1-7
General Information
When to Calibrate
When to Calibrate
A network analyzer calibration remains valid as long as the changes in the systematic error are insignificant.
This means that changes to the uncorrected leakages (directivity and isolation), mismatches (source match
and load match), and frequency response of the system are small (<10%) relative to accuracy specifications.
Change in the environment (especially temperature) between calibration and measurement is the major
cause in calibration accuracy degradation. The major effect is a change in the physical length of external and
internal cables. Other important causes are dirty and damaged test port connectors and calibration
standards. If the connectors become dirty or damaged, measurement repeatability and accuracy is affected.
Fortunately, it is relatively easy to evaluate the general validity of the calibration. To test repeatability,
remeasure one of the calibration standards. If you can not obtain repeatable measurements from your
calibration standards, maintenance needs to be performed on the test port connectors, cables and
calibration standards. Also, maintain at least one sample of the device under test or some known device as
your reference device. A verification kit may be used for this purpose. After calibration, measure the
reference device and note its responses. Periodically remeasure the device and note any changes in its
corrected response which can be attributed to the test system. With experience you will be able to see
changes in the reference responses that indicate a need to perform the measurement calibration again.
1- 8 85052D User’s and Service Guide
2 Specifications
85052D User’s and Service Guide 2- 1
Specifications
Environmental Requirements
Environmental Requirements
Table 2-1 Environmental Requirements
Parameter Limits
Te m p e r a t u r e
Operating
Storage 40 C to +75 C
Error-corrected range
Relative humidity Type tested 0% to 95% at 40 C, non-condensing
a. The temperature range over which the calibration standards maintain conformance to their specifications.
b. The allowable network analyzer ambient temperature drift during measurement calibration and during
a
b
measurements when the network analyzer error correction is turned on. Also, the range over which the
network analyzer maintains its specified performance while correction is turned on.
+20 C to +26 C
1 C of measurement calibration temperature
Temperature—What to Watch Out For
Changes in temperature can affect electrical characteristics. Therefore, the operating temperature is a
critical factor in performance. During a measurement calibration, the temperature of the calibration devices
must be stable and within the range shown in
Ta b le 2 - 1 .
IMPORTANT Avoid unnecessary handling of the devices during calibration because your fingers are a heat
source.
2- 2 85052D User’s and Service Guide
Specifications
Mechanical Characteristics
Mechanical Characteristics
Mechanical characteristics such as center conductor protrusion and pin depth are not performance
specifications. They are, however, important supplemental characteristics related to electrical performance.
Keysight Technologies verifies the mechanical characteristics of the devices in the kit with special gaging
processes and electrical testing. This ensures that the device connectors do not exhibit any center
conductor protrusion or improper pin depth when the kit leaves the factory.
“Gaging Connectors” on page 3-6 explains how to use gages to determine if the kit devices have maintained
their mechanical integrity. Refer to Tab le 2 - 2 for typical and observed pin depth limits.
Pin Depth
Pin depth is the distance the center conductor mating plane differs from being flush with the outer
conductor mating plane. See Figure 2-1. The pin depth of a connector can be in one of two states: either
protruding or recessed.
Protrusion is the condition in which the center conductor extends beyond the outer conductor mating plane.
This condition will indicate a positive value on the connector gage.
Recession is the condition in which the center conductor is set back from the outer conductor mating plane.
This condition will indicate a negative value on the connector gage.
Figure 2-1 Connector Pin Depth
85052D User’s and Service Guide 2-3
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