Keysight PNA Series Installation And Service Manual
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Keysight PNA Series Installation And Service Manual

2-port and 4-port microwave network analyzer system
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Keysight Technologies
N5251A PNA Series 2-Port and 4-Port
Microwave Network Analyzer System
(10 MHz - 110 GHz)
Use this manual in conjunction with the following documents:
- PNA Series Network Analyzer Embedded Help System
(Online at: http://na.support.keysight.com/pna)
- PNA Series Network Analyzer Installation and Quick Start Guide
Part Number E8356-90001
- N5227A PNA Series Microwave Network Analyzer Service Guide
Part Number N5227-90001
- N5261A and N5262A Millimeter Head Controller User's and Service Guide
Part Number: N5262-90001
Notice: This document contains references to Agilent. Please note that
Agilent's Test and Measurement business has become Keysight
Technologies. For more information, go to www.keysight.com.
Installation and
Service Guide

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  • Page 1 Use this manual in conjunction with the following documents: - PNA Series Network Analyzer Embedded Help System (Online at: http://na.support.keysight.com/pna) - PNA Series Network Analyzer Installation and Quick Start Guide Part Number E8356-90001 - N5227A PNA Series Microwave Network Analyzer Service Guide...
  • Page 2 DOCUMENT OR ANY INFORMATION reproduce, release, perform, CONTAINED HEREIN. SHOULD display, or disclose commercial KEYSIGHT AND THE USER HAVE A computer software or SEPARATE WRITTEN AGREEMENT commercial computer software WITH WARRANTY TERMS Installation and Service Guide N5251-90001...
  • Page 3 Assistance Product maintenance agreements and other customer assistance agreements are available for Keysight Technologies, Inc. products. For information about these agreements and for other assistance, contact Keysight. Refer to “Contacting Keysight” on page 5-4. Safety and Regulatory Information The safety and regulatory information pertaining to this product is located in Chapter 1, “Safety and Regulatory...
  • Page 4 Installation and Service Guide N5251-90001...

  • Page 5: Table Of Contents

    Keysight Technologies Customer Engineering ........
  • Page 6 Shipping an Item to Keysight for Service or Repair....... . .

  • Page 7: Safety And Regulatory Information

    Safety and Regulatory Information Installation and Service Guide N5251-90001...

  • Page 8: Safety Symbols

    Safety and Regulatory Information PNA Series Microwave Network Analyzer System Safety Symbols N5251A Safety Symbols The following safety symbols are used throughout this manual. Familiarize yourself with each of the symbols and its meaning before operating this instrument. Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or adhered to, could result in damage to or destruction of the instrument.
  • Page 9 PNA Series Microwave Network Analyzer System Safety and Regulatory Information N5251A General Safety Considerations The opening of covers or removal of parts may expose dangerous voltages. Disconnect the instrument from all voltage sources while it is opened. Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended.

  • Page 10: Electrostatic Discharge Protection

    Safety and Regulatory Information PNA Series Microwave Network Analyzer System Electrostatic Discharge Protection N5251A Electrostatic Discharge Protection Protection against electrostatic discharge (ESD) is essential while removing assemblies from or connecting cables to the system components. Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged.

  • Page 11: Regulatory Information

    PNA Series Microwave Network Analyzer System Safety and Regulatory Information N5251A Regulatory Information Regulatory Information This section contains information that is required by various government regulatory agencies. Installation and Service Guide N5251-90001...

  • Page 12: Instrument Markings

    Safety and Regulatory Information PNA Series Microwave Network Analyzer System Regulatory Information N5251A Instrument Markings The instruction documentation symbol. The product is marked with this symbol when it is necessary for the user to refer to the instructions in the documentation.

  • Page 13: Lithium Battery Disposal

    Lithium Battery Disposal If the battery on the network analyzer’s CPU board needs to be disposed of, dispose of it in accordance with your country’s requirements. If required, you may return the battery to Keysight Technologies for disposal. For assistance refer to “Contacting Keysight”...

  • Page 14: Emc And Safety Information

    PNA Series Microwave Network Analyzer System Safety and Regulatory Information N5251A Regulatory Information EMC and Safety Information EMC Information Complies with European EMC Directive 2014/30/EU • IEC/EN 61326-2-1 • CISPR Pub 11 Group 1, Class A • AS/NZS CISPR 11 •...

  • Page 15: System Description

    System Description Installation and Service Guide N5251-90001...

  • Page 16: N5251A Network Analyzer System

    PNA Series Microwave Network Analyzer System System Description N5251A N5251A Network Analyzer System N5251A Network Analyzer System The N5251A is a 2-port or 4-port vector network analyzer system with an extremely wide frequency range of 10 MHz to 110 GHz. The N5251A uses the same 1.0 mm test port connections throughout its entire range of test frequencies.

  • Page 17: Options

    PNA Series Microwave Network Analyzer System System Description N5251A N5251A Network Analyzer System Options Installation and Service Guide N5251-90001...

  • Page 18: Basic System Measurement Configurations

    PNA Series Microwave Network Analyzer System System Description N5251A Basic System Measurement Configurations Basic System Measurement Configurations The N5251A can be used in either of two basic configurations, depending on how the test ports are connected to the device under test (DUT): coaxial measurement configuration or wafer probe measurement configuration.

  • Page 19: Wafer Probe Measurement

    PNA Series Microwave Network Analyzer System System Description N5251A Basic System Measurement Configurations Figure 2-2 Coaxial Measurement Configuration, 2-Port System Wafer Probe Measurement In this configuration, the test head modules are placed on X-Y-Z positioners that are mounted to the wafer probe station. Each 1.0 mm test port is directly connected to a wafer probe.

  • Page 20: N5261A And N5262A Millimeter Head Controllers

    N5261A and N5262A Millimeter Head Controllers The N5261A and N5262A millimeter head controllers provide the test interface between the millimeter-wave test head modules and the N5227A PNA series network analyzer. The millimeter head controller, when used in conjunction with the millimeter-wave test head modules and the PNA, provides all of the feature and functions of a full S-Parameter test set.

  • Page 21: Millimeter-Wave Test Head Modules

    PNA Series Microwave Network Analyzer System System Description N5251A Millimeter-Wave Test Head Modules Millimeter-Wave Test Head Modules A pair of 67-110 GHz millimeter-wave test head modules, in conjunction with the N5261A or N5262A millimeter head controller, is used to make reflection, transmission, or S-parameter measurements at millimeter wave frequencies with the N5227A PNA.

  • Page 22: Theory Of Operation

    PNA Series Microwave Network Analyzer System System Description N5251A Millimeter-Wave Test Head Modules Theory of Operation Refer to the block diagram in Figure 2-6 on page 2-9 for the following paragraphs. The N5261A or N5262A millimeter head controller routes the LO and RF signals from the N5227A PNA to the test set modules.
  • Page 23 PNA Series Microwave Network Analyzer System System Description N5251A Millimeter-Wave Test Head Modules Figure 2-6 Millimeter-wave Test Head Module Block Diagram Installation and Service Guide N5251-90001...
  • Page 24 PNA Series Microwave Network Analyzer System System Description N5251A Millimeter-Wave Test Head Modules 2-10 Installation and Service Guide N5251-90001...

  • Page 25: System Installation

    System Installation Installation and Service Guide N5251-90001...

  • Page 26: Receiving The System

    Assistance” on page 5-4. Keysight Technologies Customer Engineering A Keysight Technologies Customer Engineer will be assigned to help you install the system. During installation, the Customer Engineer will do the following: • Unpack the system components. • Complete the system checklist, see...

  • Page 27: System Contents

    PNA Series Microwave Network Analyzer System System Installation N5251A Receiving the System System Contents Use the table below to verify that the shipment is complete. These are items that are supplied with all complete N5251A systems. A complete system is shipped in multiple containers.
  • Page 28 PNA Series Microwave Network Analyzer System System Installation N5251A Receiving the System Table 3-2 N5221A System Contents (Table 2 of 2) N5221A System Contents Option Option Option Option Option Option Option Option Right-angle adapters 1250-2604 Cable assy 5061-9038 Front handle kit for...

  • Page 29: Site Preparation

    PNA Series Microwave Network Analyzer System System Installation N5251A Site Preparation Site Preparation Power Requirements Before installing the system, be sure that the required ac power is available at all necessary locations. • Three-wire power cables (which provide a safety ground) must be used with all instruments.

  • Page 30: Environmental Requirements

    PNA Series Microwave Network Analyzer System System Installation N5251A Site Preparation Environmental Requirements The environmental requirements shown below are characteristic for the system and are based on the limitations of the N5227A network analyzer used. Table 3-4 Environmental Requirements Temperature 5 C to 40 C (41 F to 104 F)

  • Page 31: Protect Against Electrostatic Discharge (Esd)

    PNA Series Microwave Network Analyzer System N5251A System Installation Site Preparation Protect Against Electrostatic Discharge (ESD) This is important. If not properly protected against, electrostatic discharge can seriously damage your analyzer, resulting in costly repair. To reduce the chance of electrostatic discharge, follow all of the recommendations outlined in “Electrostatic Discharge Protection”...
  • Page 32 PNA Series Microwave Network Analyzer System System Installation N5251A Site Preparation Table 3-5 N5251A System Components Weights and Dimensions Model Weight Height Width Depth 3.5 kg 6.9 cm 50.7 cm (20 17.8 cm Millimeter-wave test head module (each) (7.5 lb, ± 0.5 lb) (2.7 in)

  • Page 33: Pna, Controller, And Test Head Module Interconnections

    PNA Series Microwave Network Analyzer System System Installation N5251A PNA, Controller, and Test Head Module Interconnections PNA, Controller, and Test Head Module Interconnections Mount PNA on Top of Controller Mount the PNA on top of the N5261/2A controller as shown in...
  • Page 34 PNA Series Microwave Network Analyzer System System Installation N5251A PNA, Controller, and Test Head Module Interconnections Figure 3-1 2-Port Model Rear Panel Cabling Cables shown in the graphic above are the same (5061-9038) except for the Test Set I/O cable (8120-6818).

  • Page 35: Front Panel Cabling

    PNA Series Microwave Network Analyzer System System Installation N5251A PNA, Controller, and Test Head Module Interconnections Figure 3-2 4-Port Model Rear Panel Cabling Cables shown in the graphic above are the same (5061-9038) except for the Test Set I/O cable (8120-6818).
  • Page 36 PNA Series Microwave Network Analyzer System System Installation N5251A PNA, Controller, and Test Head Module Interconnections Figure 3-3 Cable Connections for Single Test Head Module Table A Table B Table C N5261/2A N5250CX10 Cable Part PNA Front N5250CX10 PNA Front...
  • Page 37 PNA Series Microwave Network Analyzer System System Installation N5251A PNA, Controller, and Test Head Module Interconnections Connections For Each Head 1. Prepare a cable bundle comprised of the five cables in Table A. For instructions, refer to steps 1 through 5 of the Installation Guide from the Millimeter-wave Cable Dress kit (document part number N5260-90070 contained in kit part number N5261-60019).
  • Page 38 PNA Series Microwave Network Analyzer System System Installation N5251A PNA, Controller, and Test Head Module Interconnections 5. Place the test head module on the work surface in front of the controller. 6. Connect the five cables to the test head module. Details are illustrated in Figure 3-5.
  • Page 39 PNA Series Microwave Network Analyzer System System Installation N5251A PNA, Controller, and Test Head Module Interconnections 11. Torque all cable connections. 12. Connect mini-triax cables, as needed, for bias power to the DUT. Installation and Service Guide N5251-90001 3-15...

  • Page 40: Configuring The Pna Software For The N5251A

    PNA Series Microwave Network Analyzer System System Installation N5251A Configuring the PNA Software for the N5251A Configuring the PNA Software for the N5251A 1. On the PNA, select: Utility > System > Configure > Millimeter Module Configuration. The dialog box shown in the following figure will be displayed.

  • Page 41: System Specifications

    System Specifications Installation and Service Guide N5251-90001...
  • Page 42 PNA Series Microwave Network Analyzer System System Specifications N5251A Specifications Specifications System Specifications (typical) The N5251A system has typical (non-warranted) specifications only. See Table 4-1. Table 4-1 Typical System Specifications 1.0 mm Test Port (Std. or Opt 017 1.85 mm...
  • Page 43 PNA Series Microwave Network Analyzer System N5251A System Specifications Specifications Table 4-1 Typical System Specifications (Continued) 40 GHz to 45 GHz –99 –106 45 GHz to 50 GHz –97 –104 50 GHz to 60 GHz –97 –104 60 GHz to 67 GHz –92...

  • Page 44: N5227A Rear Panel Specifications

    PNA Series Microwave Network Analyzer System System Specifications N5251A Specifications N5227A Rear Panel Specifications Table 4-2 N5227A Rear Panel IF Inputs IF Connector Input Frequency 8.333 MHz 0.1 dB Compression Points at IF inputs 27.0 dBm – Nominal Input Impedance at IF Inputs...
  • Page 45 PNA Series Microwave Network Analyzer System System Specifications N5251A Specifications Figure 4-1 Internal Connection Diagram for the Test Head Bias-Tee Installation and Service Guide N5251-90001...

  • Page 46: Test Head Module Dimensions

    PNA Series Microwave Network Analyzer System System Specifications N5251A Specifications Figure 4-2 External Connection Diagram for the Test Head Bias-Tee Parametric DC Source Cable, Cascade Microtech Ex: Keysight 104-330-LC Cable, Keysight 16494A 4142B or E5270B Force Test Sense Head GNDU...
  • Page 47 PNA Series Microwave Network Analyzer System System Specifications N5251A Specifications Figure 4-3 Test Head Module Dimensions for Mounting Installation and Service Guide N5251-90001...
  • Page 48 PNA Series Microwave Network Analyzer System System Specifications N5251A Specifications Installation and Service Guide N5251-90001...

  • Page 49: Maintenance And Support

    Maintenance and Support Installation and Service Guide N5251-90001...

  • Page 50: Maintenance

    PNA Series Microwave Network Analyzer System Maintenance and Support Maintenance N5251A Maintenance To prevent electrical shock, disconnect the analyzer from the mains source before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally.

  • Page 51: Principles Of Connector Care

    Prior to making connections to your analyzer, carefully review the information about inspecting, cleaning, and gaging connectors. Refer to the calibration kit documentation for detailed connector care information. For course numbers about additional connector care instruction, contact Keysight “Contacting Keysight” on page 5-4.

  • Page 52: Keysight Support, Services, And Assistance

    Keysight for repair. If you wish to send an item from your system to Keysight Technologies for service or repair: • Contact Keysight to open a service order. Refer to “Contacting Keysight”...

  • Page 53: Performance Tests And Checks

    Performance Tests and Checks Installation and Service Guide N5251-90001...

  • Page 54: System Preparation And Analyzer Warm Up

    PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A System Preparation and Analyzer Warm Up System Preparation and Analyzer Warm Up To achieve the maximum system stability, allow the analyzer to warm up for at least 90 minutes.

  • Page 55: Review The Principles Of Connector Care

    PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A Review the Principles of Connector Care Review the Principles of Connector Care Proper connector care and connection techniques are critical for accurate and repeatable Table 5-1 on page 5-3 measurements.

  • Page 56: System Check

    PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A System Check System Check 1. Connect a 1.0 mm short to each port. Adapters may be used as needed. 2. Restart the PNA application and perform a factory preset by pressing the PRESET key.
  • Page 57 PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A System Check Figure 6-2 Typical Receiver Display for a 4-Port System When you have a display that represents the current system performance, capture the display in a file and save the file in the directory D:\sysver results (create this directory if it does not already exist).

  • Page 58: System Performance Verification

    System verification is performed at the N5251A system 1.0 mm port connectors over a frequency range of 45 MHz to 110 GHz with a Keysight 85059A 1.0 mm Calibration and Verification kit. The basic verification process checks a pair of ports at one time. Verification of a 2-port system typically takes about 20 minutes.

  • Page 59: Materials Required

    PNA Series Microwave Network Analyzer System N5251A Performance Tests and Checks System Performance Verification Materials Required The following materials are required to run the tests: • N5251A system (including system cables) • 85059A 1.0 mm Calibration and Verification kit • System Verification program, revision A.05.10 or later. To check the program revision, open the System Verification utility (step 2 in “Verification Procedure”...

  • Page 60: Verification Procedure

    PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A System Performance Verification Verification Procedure 1. Insert the USB memory stick from the 85059A kit into the PNA. 2. Press Utility > System > Service > System Verification. The System Verification dialog box is displayed;...
  • Page 61 11. Enter the serial number for the 85059A kit. The other numbers are optional. 12. Click Continue. 13. As prompted, install the 1.0 mm female to female cable (8.8 cm, Keysight part number 11500-60001) onto the right test head (Port 2). See Figure 6-5 on page 6-10.
  • Page 62 PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A System Performance Verification Figure 6-5 Test Port Cable for System Verification Do not remove this test port cable once the Calibration/Verification process has begun. If the test port cable becomes loose or is removed during the calibration/verification process, the calibration is invalid.

  • Page 63: Verification Results Files

    PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A System Performance Verification 16. When the calibration process is completed, you will be prompted to save the calibration state to a file. Saving the calibrated state is recommended. The saved calibration may be useful if it becomes necessary to remeasure the verification devices.
  • Page 64 PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A System Performance Verification Figure 6-6 Magnitude for Matched Thru 6-12 Installation and Service Guide N5251-90001...
  • Page 65 PNA Series Microwave Network Analyzer System Performance Tests and Checks System N5251A Performance Verification Figure 6-7 Phase for Matched Thru Installation and Service Guide N5251-90001 6-13...
  • Page 66 PNA Series Microwave Network Analyzer System Performance Tests and Checks System N5251A Performance Verification Figure 6-8 Magnitude for Mismatched Thru 6-14 Installation and Service Guide N5251-90001...

  • Page 67: Interpreting The Verification Results

    PNA Series Microwave Network Analyzer System Performance Tests and Checks System N5251A Performance Verification Figure 6-9 Phase for Mismatched Thru Interpreting the Verification Results The purpose of the N5251A system verification process is to demonstrate that the system is making reasonable measurements. There are no hard specifications on the N5251A system, so there are no pass/fail limits from the system verification measurements.

  • Page 68: Improving The Verification Results

    PNA Series Microwave Network Analyzer System Performance Tests and Checks N5251A System Performance Verification Improving the Verification Results IMPORTANT Inspect all connections. Do not remove the test port cable from the analyzer test port. This will invalidate the calibration that you performed earlier.

  • Page 69: Replaceable Parts

    Replaceable Parts Installation and Service Guide N5251-90001...
  • Page 70 Ordering Information To order a part listed in the replaceable parts lists: • include the part number • indicate the quantity required • Contact Keysight Technologies for instructions on where to send the “Contacting Keysight” on page 5-4. order. Refer to To order a part that is not listed in the replaceable parts lists: •...
  • Page 71 PNA Series Microwave Network Analyzer System Replaceable Parts N5251A Replaceable Parts List Replaceable Parts Table 7-1 Replaceable Parts List Keysight Part Number Description Test Head Module Parts: 2110-0046 Fuse (inch) 0.5A, 125V NTD BI. Fuse for bias tee (option 017 and 018)
  • Page 72 This information is subject to change without notice. © Keysight Technologies 2012, 2017 Edition 1, July 2017 Supersedes: February 2017 www.keysight.com...

This manual is also suitable for:

N5251aN5261aN5262aN5227a

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