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Keysight Technologies N5252A User Manual

Vector network analyzer system
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Keysight Technologies
N5252A Vector Network
Analyzer System
Use this manual in conjunction with the following
Keysight documents and VDI website:
- Keysight M937xA PXIe Vector Network Analyzer
Modules Startup Guide
Part Number M9370-90001
- Keysight M9005A PXIe Chassis User Guide
Part Number M9005-90001
- Vector Network Analyzer Extenders
(VNAX) from Virginia Diodes, Inc.
https://www.vadiodes.com/en/products/
vector-network-analyzer-extension-modules
User's Guide

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Summary of Contents for Keysight Technologies N5252A

  • Page 1 Keysight Technologies N5252A Vector Network Analyzer System Use this manual in conjunction with the following Keysight documents and VDI website: - Keysight M937xA PXIe Vector Network Analyzer Modules Startup Guide Part Number M9370-90001 - Keysight M9005A PXIe Chassis User Guide...
  • Page 2 COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH government requirements THESE TERMS, THE WARRANTY beyond those set forth in the © Keysight Technologies, Inc. 2018, TERMS IN THE SEPARATE EULA shall apply, except to the 2019 AGREEMENT WILL CONTROL.

  • Page 3: Table Of Contents

     Keysight N5252A PXIe Vector Network Analyzer System System Description ..............5 Introduction .
  • Page 4 Table of Contents Maintenance and Support ............29 Troubleshooting Your System .

  • Page 5: System Description

    System Description User's Guide N5252-90002...

  • Page 6: Introduction

    Introduction The Keysight N5252A is a PXI-based Millimter-wave Vector Network Analyzer System for S-Parameter measurements. Available Options • Option 200 provides items for a 2-Port E-Band (60-90 GHz) system. See Figure • Option 400 provides items for a 4-Port E-Band (60-90 GHz) system. See...

  • Page 7: Specifications

    Weight and size dimensions for the M9005A Chassis can be found in its User Guide (M9005-90001). Weight and size dimensions for the VDI Extenders can be found on their product page at https://www.vadiodes.com/en/products/vector-network-analyzer-extension-modules Environmental Requirements Refer to the M937xA and M9005A User Guides for environmental requirements for the N5252A system. Table 2 Application Support Application...
  • Page 8 Figure 1 N5252A 2-Port Configuration Figure 2 N5252A 4-Port Configuration User's Guide N5252-90002...
  • Page 9 Figure 3 N5262AC12 - WR12 (E-Band, 60-90 GHz) Calibration Kit from VDI User's Guide N5252-90002...
  • Page 10 User's Guide N5252-90002...

  • Page 11: System Setup And Installation

    System Setup and Installation User's Guide N5252-90002...

  • Page 12: Hardware Setup

    System Setup and Installation Hardware Setup The M9374A modules are installed into the M9005A chassis at the factory, with the interconnects as shown in Figure 4 below. Two modules are installed for Option 200 and four modules for Option 400. 1.

  • Page 13: 2-Port Setup

    2-Port Setup Port 1 Configuration 1. Remove the 50 ohm load from LO Out on M9374A Module #1. 2. Install the three cables between M9374A Module #1 and VDI Extender #1. See Table 3 Figure 3. If not already installed, install a 50 Ω load to LO In on M9374A Module #1. See Figure 4.
  • Page 14 Port 2 Configuration 1. Install the two cables between M9374A Module #2 and VDI Extender #2. See Table 4 Figure 2. If not already installed, install two 50 Ω loads to LO In and LO Out on M9374A Module #2. If not already installed, install a reference jumper and a trigger jumper on Modules #1 and #2.

  • Page 15: 4-Port Setup

    4-Port Setup Port 3 Configuration - Option 400 Only 1. Install the two cables between M9374A Module #3 and VDI Extender #3. See Table 5 Figure 2. If not already installed, install two 50 Ω loads to LO In and LO Out on M9374A Module #3. If not already installed, install a reference jumper and a trigger jumper on Modules #2 and #3.
  • Page 16 Port 4 Configuration - Option 400 Only 1. Install the two cables between M9374A Module #4 and VDI Extender #4. See Table 6 Figure 2. If not already installed, install two 50 Ω loads to LO In and LO Out on M9374A Module #4. If not already installed, install a reference jumper and a trigger jumper on Modules #3 and #4.

  • Page 17: Software Installation And Setup

    3. Vector Network Analyzer software (Network Analyzer application) - To download your application firmware, visit the Keysight N5252A system product page at https:// www.keysight.com/main/techSupport.jspx? cc=US&lc=eng&nid=-32494.1254980&pid=2964095&pageMode=DS. 4. Once the software has been installed, turn the computer off.

  • Page 18: Configuring Your System

    Turn on the M9005A chassis, which should turn on your computer. Run the Network Analyzer Application, which will start up in the Standard PNA configuration. Refer to the VNA Help menu to add a new N5252A configuration (Setup > External Hardware > Millimeter Config > New > name "N5252A"). See...

  • Page 19: System Check

    Receiver Check, Dynamic Range Check, and Stability Check. Refer to the Help menu for assistance. Receiver Check N5252A-200 (2-Port) System Receiver Check 1. Leave the ports open. 2. Select Preset > System > Service > Diagnostics > Receiver Display...
  • Page 20 Figure 10 2-Port Receiver Check Figure 11 4-Port Receiver Check User's Guide N5252-90002...

  • Page 21: Dynamic Range Check

    Dynamic Range Check N5252A-200 (2-Port) System 1. Connect the VNA extender waveguide Ports 1 and 2 together. 2. Select Preset. 3. Set the power level to 20 dBm. 4. Ensure that the following traces are each set up in a display window (turn on "Statistics"...
  • Page 22 N5252A-400 (4-Port System) 1. Connect the VNA extender waveguide Ports 3 and 4 together. 2. Select Preset. 3. Set the power level to 20 dBm. 4. Ensure that the following four traces are each setup in a display window (turn on "Statistics"...

  • Page 23: Stability Check

    Stability Check 1. Attach flush shorts to Port 1 and Port 2 on the mm-wave extenders. 2. Select Preset. 3. Set IF Bandwidth to 100 Hz. 4. Setup traces in separate display windows, with four windows for 2-Port and eight windows for 4-Port. For Port 1 and 2, setup the following traces: S11 scale format log mag, scale 0.1 dB S11 scale format phase, scale 1 degree S22 scale format log mag, scale 0.1 dB...
  • Page 24 Figure 14 2-Port Function Check - Stability and Trace Noise (100 Hz) User's Guide N5252-90002...

  • Page 25: Installation Calibration

    Installation Calibration An Installation Calibration is recommended for most applications. The Installation Calibration can be turned off and on as needed. Important Notes: • If power level control is required, perform an Installation Calibration. • The Installation calibration should be done each time a change is made to the physical configuration, i.e., a cable change, a change in a millimeter extender, or a change in a PXIe module.

  • Page 26: System Calibration With N5262Ac12 Calibration Kit

    System Calibration with N5262AC12 Calibration Kit For un-ratioed measurements, 100 Hz IF BW is the lowest recommended bandwidth. Refer to the Help menu for detailed calibration information. Example System Calibration Using a Smart Cal To improve the accuracy of your system, this section of the User's Guide will outline the process for performing a Smart Cal for a system calibration.

  • Page 27: Power Level Control And Max Power Level

    Power Level Control and Max Power Level 1. Set up two traces, making sure "Statistics" is turned on. a. For 2-Port: a1,1 and a2,2 b. For 4-port: a3,3 and a4,4 2. Measure the power level at -5 dBm (default). Verify the traces are measuring -5 dBm (mean), ±...
  • Page 28 Figure 17 4-Port Function Check - Power User's Guide N5252-90002...

  • Page 29: Maintenance And Support

    Maintenance and Support User's Guide N5252-90002...

  • Page 30: Troubleshooting Your System

    Troubleshooting Your System The following section will help to resolve common system problems. If a failure is confirmed, refer to Keysight Support Services. See "Contacting Keysight" on page System Computer Setup Issues Computer Not Recognizing the M9005A Chassis 1. Ensure the M9005A-002 PXIe card is fully seated and recognized by your computer.

  • Page 31: Replacement Parts

    If the receiver power check fails: 1. Ensure the Installation Calibration and Smart Cal have been completed, calibrating both source and receiver power. 2. Verify that the power sensor is accurate and not damaged, especially at the connector. See page 3.

  • Page 32: Block Diagram

    Block Diagram Figure 18 N5252A System Block Diagram User's Guide N5252-90002...

  • Page 33: Maintenance

    Maintenance To prevent electrical shock, remove the chassis and VDI modules from the mains source before cleaning. If an analyzer module needs cleaning, remove it from the chassis slot. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally.

  • Page 34: Principles Of Connector Care

    Prior to making connections to your analyzer, carefully review the information about how to properly inspect, clean, and gauge connectors. Refer to the calibration kit documentation for detailed connector care information. For additional connector care instruction, contact Keysight Technologies. Refer to “Contacting Keysight” on page...

  • Page 35: Safety And Regulatory Information

    Safety and Regulatory Information User's Guide N5252-90002...

  • Page 36: General Safety Considerations

    General Safety Considerations Safety Earth Ground This is a Safety Class I product (provided with a protective earthing ground incorporated in the power cord). The mains plug shall only be inserted in a socket outlet provided with a protective earth contact. Any interruption of the protective conductor, inside or outside of the instrument, will make the instrument dangerous.
  • Page 37 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. Discard used batteries according to manufacturer’s instructions.

  • Page 38: Electrostatic Discharge

    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. Static discharges too small to be felt can cause permanent damage.

  • Page 39: Instrument Markings

    Instrument Markings Listed below are definitions of markings that may be found on or with the product. 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. This symbol indicates that the input power required is AC.

  • Page 40: Regulatory Information

    — LpA <70 dB — Operator position — Normal operation mode per ISO 7779 Declaration of Conformity A declaration of conformity is available upon request, or a copy is available on the Keysight Technologies web site at https://regulations.about.keysight.com/DoC/ User's Guide N5252-90002...

  • Page 41: Keysight Support, Services, And Assistance

    The N5252A system has a one-year return-to-Keysight warranty. Three-year and five-year warranties are available. Contact Keysight for service (see "Contacting Keysight" below). The N5252A system is calibrated by the customer using the N5262AC12 Calibration Kit that comes with the system.
  • Page 42 This information is subject to change without notice. © Keysight Technologies 2018, 2019 Print Date: January 2019 Supersedes: December 2018 www.keysight.com...

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