User’s and Service Guide Agilent Technologies 85054B 50Ω Type-N Calibration Kit This manual applies directly to 85054B calibration kits with serial number prefix 3101A. The calibration devices in this kit are individually serialized. Record the device serial numbers in the table provided in this manual (see “Recording the Device Serial Numbers” in Chapter 1.
Documentation Warranty THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED "AS IS," AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, AGILENT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Contents 1. General Information Calibration Kit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2 Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2 Calibration Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3 Incoming Inspection . . . . . . . . . . . . . . . . . . . . . . . .
Contents 5. Troubleshooting Troubleshooting Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Returning a Kit or Device to Agilent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Where to Look for More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Contacting Agilent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 General Information 85054B 1- 1
General Information Calibration Kit Overview Calibration Kit Overview The Agilent 85054B type-N calibration kit is used to calibrate Agilent network analyzers up to 18 GHz for measurements of components with 50Ω type-N connectors. The standards in this calibration kit allow you to perform simple 1- or 2-port and TRM (thru–reflect–match) calibrations.
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.
General Information Incoming Inspection Incoming Inspection Refer to “Kit Contents” on page 1-2 to verify a complete shipment. Use Table 1-1 on page 1-5 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 Agilent” on page 5-3.
General Information Serial Numbers Serial Numbers A serial number is attached to this calibration kit. The first four digits followed by a letter comprise the serial number prefix; the last five digits are the suffix, unique to each calibration kit. 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 Table 1-1.
General Information Calibration Kits Documented in This Manual Calibration Kits Documented in This Manual This manual applies to any 85054B calibration kit whose serial number prefix is listed on the title page. If your calibration kit has a different serial number prefix, refer to the “Calibration Kit History” section below 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.
General Information Precision Slotless Connectors Precision Slotless Connectors The female type-N 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.
General Information Clarifying the Sex of a Connector Clarifying the Sex of a Connector In this manual, the sex of calibration devices and adapters are referred to in terms of their connector interface. For example, a male open has a male connector. However, during a measurement calibration, the network analyzer softkey menus label a type-N calibration device with reference to the sex of the analyzer’s test port connector—not the calibration device connector.
2 Specifications 2-1
Specifications Environmental Requirements Environmental Requirements Table 2-1 Environmental Requirements Parameter Limits Operating temperaturea +20 °C to +26 °C (+68 °F to +79 °F) Error-corrected temperature rangeb ±1 °C of measurement calibration temperature Storage temperature −40 °C to +75 °C (−40 °F to +167 °F) Altitude Operation < 4,500 meters (≈15,000 feet) Storage < 15,000 meters (≈50,000 feet) Relative humidity Always non-condensing Operation 0 to 80% (26 °C maximum dry bulb) St
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. Agilent Technologies verifies the mechanical characteristics of the devices in this kit with special gaging processes and electrical testing.
Specifications Mechanical Characteristics NOTE The gages for measuring type-N connectors compensate for the designed offset of 5.26 mm (0.207 inch), therefore, protrusion and recession readings are in relation to a zero reference plane (as if the inner and outer conductor planes were intended to be flush). Gage readings can be directly compared with the observed values listed in Table 2-2.
Specifications Electrical Specifications Electrical Specifications The electrical specifications in Table 2-3 apply to the devices in your calibration kit when connected with an Agilent precision interface. Table 2-3 Electrical Specifications Device Frequency (GHz) Parameter Specification Lowband loads DC to ≤2 Return Loss ≥48 dB (≤0.00398ρ) Sliding loadsa > 2 to ≤18 Return Loss ≥42 dB (≤0.00794ρ) Adapters DC to ≤8 Return Loss ≥34 dB (≤0.
Specifications Electrical Specifications 2- 6 85054B
3 Use, Maintenance, and Care of the Devices 3-1
Use, Maintenance, and Care of the Devices Electrostatic Discharge Electrostatic Discharge Protection against ESD (electrostatic discharge) is essential while connecting, inspecting, or cleaning connectors attached to a static-sensitive circuit (such as those found in test sets). Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged. Static discharges too small to be felt can cause permanent damage.
Use, Maintenance, and Care of the Devices Visual Inspection Visual Inspection Visual inspection and, if necessary, cleaning should be done every time a connection is made. Metal particles from the connector threads may fall into the connector when it is disconnected. One connection made with a dirty or damaged connector can damage both connectors beyond repair. In some cases, magnification is necessary to see damage on a connector; a magnifying device with a magnification of ≥10× is recommended.
Use, Maintenance, and Care of the Devices Cleaning Connectors Inspect the Precision Slotless Connectors (female) Precision slotless female connectors are used to improve accuracy. The slotless contacts are not affected by the slight variations in male contact pin diameter. However, it is still advisable to inspect them regularly for damage. NOTE This is particularly important when mating nonprecision to precision devices.
Use, Maintenance, and Care of the Devices Cleaning Connectors Use a lint-free swab or cleaning cloth moistened with isopropyl alcohol to remove any dirt or stubborn contaminants on a connector that cannot be removed with compressed air or nitrogen. Refer to Table 6-2 on page 6-4 for part numbers for isopropyl alcohol and cleaning swabs. a. Apply a small amount of isopropyl alcohol to a lint-free cleaning swab. b. Clean the connector threads. c.
Use, Maintenance, and Care of the Devices Gaging Connectors Gaging Connectors The gages available from Agilent Technologies are intended for preventive maintenance and troubleshooting purposes only. (See Table 6-1 on page 6-2 for part number information.) They are effective in detecting excessive center conductor protrusion or recession, and conductor damage on DUTs, test accessories, and the calibration kit devices. Do not use the gages for precise pin depth measurements.
Use, Maintenance, and Care of the Devices Gaging Connectors When to Gage Connectors Gage a connector at the following times: • Prior to using a device for the first time: record the pin depth measurement so that it can be compared with future readings. (It will serve as a good troubleshooting tool when you suspect damage may have occurred to the device.
Use, Maintenance, and Care of the Devices Gaging Connectors Gaging Procedures Gaging Male Type-N Connectors NOTE Always hold a connector gage by the gage barrel, below the dial indicator. This gives the best stability, and improves measurement accuracy. 1. Select the proper gage for your connector. (Refer to Table 6-2 for gage part numbers). 2. Inspect and clean the gage, gage master, and device to be gaged. Refer to “Visual Inspection” and “Cleaning Connectors” earlier in this chapter. 3.
Use, Maintenance, and Care of the Devices Gaging Connectors Figure 3-3 85054B Gaging Male Type-N Connectors 3-9
Use, Maintenance, and Care of the Devices Gaging Connectors Gaging Female Type-N Connectors NOTE Always hold a connector gage by the gage barrel, below the dial indicator. This gives the best stability, and improves measurement accuracy. 1. Select the proper gage for your connector. (Refer to Table 6-2 for gage part numbers). 2. Inspect and clean the gage, gage master, and device to be gaged. Refer to “Visual Inspection” and “Cleaning Connectors” earlier in this chapter. 3.
Use, Maintenance, and Care of the Devices Gaging Connectors Figure 3-4 Gaging Female Type-N Connectors 85054B 3-11
Use, Maintenance, and Care of the Devices Gaging Connectors Gaging the Sliding Load Gage the sliding load before each use. If the sliding load pin depth is out of the observed pin depth limits listed in Table 2-2 on page 2-4, refer to “Adjusting the Sliding Load Pin Depth” on page 3-13. NOTE Always hold a connector gage by the gage barrel, below the dial indicator. This gives the best stability, and improves measurement accuracy.
Use, Maintenance, and Care of the Devices Gaging Connectors NOTE When performing pin depth measurements, use different orientations of the gage within the connector. Averaging a minimum of three readings, each taken after a quarter-turn rotation of the gage, reduces measurement variations that result from the gage or the connector face not being exactly perpendicular to the center axis. 11.Compare the average reading with the observed pin depth limits in Table 2-2 on page 2-4.
Use, Maintenance, and Care of the Devices Gaging Connectors If the pin depth is outside the observed limits listed in Table 2-2 on page 2-4, use the following procedure to reset it. Always measure the sliding load pin depth before attaching it to any connector. This procedure assumes that you were directed here from “Gaging the Sliding Load” on page 3-12. If not, perform the steps in that procedure before performing this procedure. 1. The gage should be attached to the sliding load.
Use, Maintenance, and Care of the Devices Gaging Connectors Figure 3-6 85054B Adjusting the Sliding Load Pin Depth 3-15
Use, Maintenance, and Care of the Devices Connections Connections Good connections require a skilled operator. The most common cause of measurement error is bad connections. The following procedures illustrate how to make good connections. How to Make a Connection Preliminary Connection 1. Ground yourself and all devices. Wear a grounded wrist strap and work on a grounded, conductive table mat. Refer to “Electrostatic Discharge” on page 3-2 for ESD precautions. 2. Visually inspect the connectors.
Use, Maintenance, and Care of the Devices Connections Using a torque wrench guarantees that the connection is not too tight, preventing possible connector damage. It also guarantees that all connections are equally tight each time. Prevent the rotation of anything other than the connector nut that you are tightening. It may be possible to do this by hand if one of the connectors is fixed (as on a test port).
Use, Maintenance, and Care of the Devices Connections 3. Apply downward force perpendicular to the wrench handle. See Figure 3-8. This applies torque to the connection through the wrench. Do not hold the wrench so tightly that you push the handle straight down along its length rather than pivoting it, otherwise you apply an unknown amount of torque. 4. Tighten the connection just to the torque wrench break point. The wrench handle gives way at its internal pivot point. See Figure 3-8.
Use, Maintenance, and Care of the Devices Connections 3. Release pressure on the center conductor and mate the outer conductor of the sliding load with the outer conductor of the cable/test port connector. Torque the connection with a 3/4 inch torque wrench to approximately 135 N-cm (12 in-lb). Refer to “Final Connection Using a Torque Wrench” on page 3-16 for additional information. 4. Retighten the center conductor pull-back nut. It will “click” when it is tight.
Use, Maintenance, and Care of the Devices Using the Sliding Load Using the Sliding Load When performing a sliding load calibration, it is recommended that the sliding ring be set at the marked positions (rings) along the sliding load body. Using the set marks ensures that a broad distribution of phase angles is selected, thereby optimizing the calibration. The set marks function as detents so that the internal center of the sliding ring can mate with them.
Use, Maintenance, and Care of the Devices Using the Sliding Load Figure 3-10 Using the Sliding Load 85054B 3-21
Use, Maintenance, and Care of the Devices Handling and Storage Handling and Storage • Install the protective end caps and store the calibration devices in the foam-lined storage case when not in use. • Never store connectors loose in a box, desk, or bench drawer. This is the most common cause of connector damage during storage. • Keep connectors clean. • Do not touch mating plane surfaces.
4 Performance Verification 4-1
Performance Verification Introduction Introduction The performance of your calibration kit can only be verified by returning the kit to Agilent Technologies for recertification. The equipment required to verify the specifications of the devices in the kit has been specially manufactured and is not commercially available. How Agilent Verifies the Devices in This Kit Agilent verifies the specifications of these devices as follows: 1.
Performance Verification Recertification Recertification The following will be provided with a recertified kit: • a new calibration sticker affixed to the case • a certificate of calibration • a calibration report for each device in the kit listing measured values, specifications, and uncertainties NOTE A list of NIST traceable numbers may be purchased upon request to be included in the calibration report. Agilent Technologies offers a Standard calibration for the recertification of this kit.
Performance Verification Recertification 4-4 85054B
5 Troubleshooting 5-1
Troubleshooting Troubleshooting Process Troubleshooting Process If you suspect a bad calibration, or if your network analyzer does not pass performance verification, follow the steps in Figure 5-1.
Troubleshooting Returning a Kit or Device to Agilent Returning a Kit or Device to Agilent If your kit or device requires service, contact Agilent Technologies for information on where to send it. See Table 5-1 for contact information.
Troubleshooting Returning a Kit or Device to Agilent 5- 4 85054B
6 Replaceable Parts 6-1
Replaceable Parts Introduction Introduction Table 6-1 lists the replacement part numbers for items included in the 85054B calibration kit and Figure 6-1 illustrates each of these items. Table 6-2 lists the replacement part numbers for items recommended or required for successful operation but not included in the calibration kit. To order a listed part, note the description, the part number, and the quantity desired. Refer to “Contacting Agilent” on page 5-3.
Replaceable Parts Introduction Table 6-1 Replaceable Parts for the 85054B Calibration Kit Item No.
Replaceable Parts Introduction Table 6-2 Replaceable Parts—Items Not Included in the Calibration Kit Item No.
Replaceable Parts Introduction Figure 6-1 Replaceable Parts for the 85054B Calibration Kit 85054B 6-5
Replaceable Parts Introduction Figure 6-2 More Replaceable Parts for the 85054B Calibration Kit 6- 6 85054B
A Standard Definitions 85054B A-1
Standard Definitions Version Changes Version Changes Class assignments and standard definitions may change as more accurate model and calibration methods are developed. The disk shipped with the kit will contain the most recent version.
Standard Definitions Standard Class Assignments Standard Class Assignments Class assignment organizes calibration standards into a format compatible with the error models used in the measurement calibration. A class or group of classes corresponds to the systematic errors to be removed from the measured network analyzer response. Table A-1 through A-3 list the classes of the devices in the kit for various network analyzers. This information resides on the calibration definitions disk included in the kit.
Standard Definitions Standard Class Assignments Table A-2 Standard Class Assignments for the 872x Series Network Analyzer Calibration Kit Label: [N 50 Ω] Class A B C D E F G Standard Class Label S11A 2 8 Open S11B 1 7 Short S11C 3 5 S22A 2 8 Open S22B 1 7 Short S22C 3 5 Forward transmission 4 Thru Reverse transmission 4 Thru Forward match 4 Thru Reverse match 4 Thru Response 1 7 2 8 4 Response Response & isolation 1 7 2 8 4 Response TRL thru 4 TR
Standard Definitions Standard Class Assignments Table A-3 Standard Class Assignments for the PNA Series Network Analyzer Calibration Kit Label: Type-N Model 85054B Class Aa S11A 2 S11B 1 S11C 3, 5, 6 S21T 4 S22A 2 S22B 1 S22C 3, 5, 6 S12T 4 a. For additional ports, make sure values match the correct sex of the port. IMPORTANT The following calibrations are only supported by certain PNA analyzers. See your PNA series network analyzer embedded help system. Notes: 1.
Standard Definitions Standard Class Assignments 4. S11B and S11C must be defined as the same standard. 5. S22B and S22C must be defined as the same standard. For additional information on performing TRL, TRM, and LRM calibrations, refer to your PNA series network analyzer embedded help system.
Standard Definitions Standard Class Assignments Blank Forms The standard class assignments may be changed to meet your specific requirements. Table A-4 through A-6 are provided to record the modified standard class assignments.
Standard Definitions Standard Class Assignments Table A-5 Blank Form for the 872x Series of Network Analyzers Calibration Kit Label: _________________ Class A B C D E F G Standard Class Label S11A S11B S11C S22A S22B S22C Forward transmission Reverse transmission Forward match Reverse match Response Response & isolation TRL thru TRL reflect TRL line or match TRL Option Cal Z0: Set ref: A-8 _____ System Z0 _____ Thru _____ Line Z0 _____ Reflect 85054B
Standard Definitions Standard Class Assignments Table A-6 Blank Form for the PNA Series Network Analyzers Calibration Kit Label: ________________________ Class Aa S11A S11B S11C S21T S22A S22B S22C S12T a. For additional ports, make sure values match the correct sex of the port. IMPORTANT The following calibrations are only supported by certain PNA analyzers. See your PNA series network analyzer embedded help system. Notes: 1.
Standard Definitions Standard Class Assignments 4. S11B and S11C must be defined as the same standard. 5. S22B and S22C must be defined as the same standard. For additional information on performing TRL, TRM, and LRM calibrations, refer to your PNA series network analyzer embedded help system.
Standard Definitions Nominal Standard Definitions Nominal Standard Definitions Standard definitions provide the constants needed to mathematically model the electrical characteristics (delay, attenuation, and impedance) of each calibration standard. The nominal values of these constants are theoretically derived from the physical dimensions and material of each calibration standard, or from actual measured response. These values are used to determine the measurement uncertainties of the network analyzer.
Standard Definitions Nominal Standard Definitions Standard Definitions for the 8510 Network Analyzer System Z0a = 50.0 Ω Calibration Kit Label: TYPE N B.2 File Number: * FILE 1 Frequency Offset Standard Label Coax or Waveguide Min Max in GHz d Loss in GΩ/s Z0 Ω Fixed or Slidingc L3 ×10−42 H/Hz3 C3 ×10−45 F/Hz3 C1 ×10−27 F/Hz L1 ×10−24 H/Hz L2 ×10−33 H/Hz2 C2 ×10−36 F/Hz2 C0 ×10−15 F Type Number Standard b L0 ×10−12 H Disk File Name: CK_NTYPB2 Delay Table A-7 1 Shorte −0.1315 606.
Standard Definitions Nominal Standard Definitions Table A-8 Standard Definitions for the 872x Series Network Analyzer System Z0a = 50.0 Ω Calibration Kit Label: [N 50Ω] Fixed or Slidingc Frequency Offset Loss in GΩ/s Coax or Waveguide Standard Label 0 0 27.99 50 800M 0 999 Coax Short (m) 2 Open 88.31 1667.2 −146.61 9.75 22.
Standard Definitions Nominal Standard Definitions Standard Definitions for the PNA Series Network Analyzer System Z0a = 50.0 Ω Frequency Offset Standard Label Coax or Waveguide Max Min in GHzc Loss in GΩ/s Z0 Ω Fixed or sliding L3 ×10−45 H/Hz3 C3 ×10−48 F/Hz3 C1 ×10−30 F/Hz L1 ×10−24 H/Hz L2 ×10−33 H/Hz2 C2 ×10−39 F/Hz2 C0 ×10−18 F L0 ×10−12 H Type Number Standardb Calibration Kit Label: N 50Ω Delay in ps Table A-9 1 Short −0.1315 606.21 −68.405 2.0206 27.990 50 1.
Standard Definitions Nominal Standard Definitions Blank Forms The standard definitions may be changed to meet your specific requirements. Table A-10 through A-12 are provided to record the modified standard definitions.
Standard Definitions Nominal Standard Definitions Table A-11 Blank Form for the 872x Series of Network Analyzers System Z0a = 50.0 Ω Calibration Kit Label:________________________ Standard Label Coax or Waveguide Max Min in GHz d Loss in GΩ/s Z0 Ω Offset Delay in ps C3 ×10−45 F/Hz3 C2 ×10−36 F/Hz2 C1 ×10−27 F/Hz C0 ×10−15 F Type Number Fixed or Slidingc Frequency Standard b 1 2 3 4 5 6 7 8 a. b. c. d. A-16 Ensure system Z0 of network analyzer is set to this value.
Standard Definitions Nominal Standard Definitions Blank Form for the PNA Series of Network Analyzers Frequency Standard Label Coax or Waveguide Max Min in GHzc Loss in GΩ/s Z0 Ω Offset Fixed or sliding L3 ×10−45 H/Hz3 C3 ×10−48 F/Hz3 C1 ×10−30 F/Hz L1 ×10−24 H/Hz Calibration Kit Label: ________________________ L2 ×10−33 H/Hz2 C2 ×10−39 F/Hz2 C0 ×10−18 F Type Number Standard b L0 ×10−12 H System Z0a = _______________ Delay in ps Table A-12 1 2 3 4 5 6 7 8 a.
Standard Definitions Nominal Standard Definitions A-18 85054B
Index A adapters, 1-3 part numbers, 6-6 Agilent Technologies contacting, 5-3 alcohol isopropyl as cleaning solvent, 3-4 altitude, 2-2 assistance contacting agilent, 5-3 B blank forms standard class assignments, A-7 standard definitions, A-15 C cal kit contents, 1-2 history, 1-6 overview, 1-2 calibration bad, 5-2 certificate of, 4-2 constants, 1-3 permanently stored, 1-3 standards, 2-5 temperature, 2-2 calibration constants entering, 1-3 permanently stored, 1-3 calibration definitions, 1-3 calibration kit c
Index master, 3-8, 3-10, 6-6 reading, 3-7 zeroing, 3-8, 3-10 gage master part numbers, 6-6 using, 3-8, 3-10 gaging female connectors, 3-10 male connectors, 3-8 procedures, 3-8 sliding loads, 3-12 gaging connectors, 3-6 when to do, 3-7 H handling, 3-22 humidity , 2-2 I impedance system, A-11 setting, A-11 incoming inspection, 1-4 information, troubleshooting, 5-3 inspection damage, 3-3 defects, 3-3 incoming, 1-4 mating plane, 3-3 visual, 3-3 isopropyl alcohol as cleaning solvent, 3-4 K kit contents, 1-2 ove
Index supplies cleaning, 1-3 system impedance, A-11 T tag service, 4-3, 5-3 temperature calibration, 2-2 device, 2-2 error-corrected temperature range, 2-2 measurement, 2-2 operating range, 2-2 verification and measurement, 2-2 test data, 4-2 threads connector, 3-4 torque wrench, 1-3, 3-16 part number, 6-6 specifications, 3-16 traceability, 4-2 troubleshooting , 5-2 V verification performance, 4-2 temperature, 2-2 visual inspection, 3-3 W warranty, documentation , ii wrench open-end, 1-3, 3-19 part number,