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Keysight N5244/45AS Option H85 User's And Service Manual

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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.
Keysight Technologies
N5244/45AS Option H85
User's and Service Guide

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Summary of Contents for Keysight N5244/45AS Option H85

  • Page 1 Keysight Technologies N5244/45AS Option H85 User’s and Service Guide 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. ...
  • Page 2 WARRANTIES OF MERCHANTABILITY AND prime contract or subcontract, FITNESS FOR A PARTICULAR PURPOSE. Software is delivered and licensed as Manual Part Number KEYSIGHT SHALL NOT BE LIABLE FOR “Commercial computer software” as ERRORS OR FOR INCIDENTAL OR N5245-90002 defined in DFAR 252.227-7014 (June CONSEQUENTIAL DAMAGES IN 1995), or as a “commercial item”...

  • Page 3: Table Of Contents

    Shipping Your Product to Keysight for Service or Repair ....... .
  • Page 4 Contents Contents-ii...

  • Page 5: N5244/45As Option H85

    N5244/45AS Option H85 N5245-90002 User’s and Service Guide...

  • Page 6: Introduction

    N5244A or N5245A in the search field. Description The Keysight N5244/45AS Option H85 is a modified version of the standard N5244/45A PNA-X Series Network Analyzer. Option H85 is designed to permit insertion of high power amplifiers, and other signal conditioning equipment, to allow high power network measurements at RF levels up to 20 watts (+43 dBm) from 10 MHz to 50 GHz.

  • Page 7: What You Need To Know About Your N524Xas Pna-X

    When ordering and enabling Option H85, Options 219/419 become Options 285/485. N5244/45AS Option H85 Ordering Configuration  (serial tag options) Figure 1 Serial Tag 2-Port Configuration Includes the Following Options: •...

  • Page 8: N5244/45A Option H85 Shipped Configuration

    N5244/45AS Option H85 What You Need to Know About Your N524xAS PNA-X N5244/45A Option H85 Shipped Configuration  (about network anal yzer option field) Figure 2 About Network Analyzer 2-Port Configuration Shown in PNA-X Option Fields: • 200 50 GHz 2-Ports base configuration •...

  • Page 9: Operation

    N5244/45AS Option H85. External components are not supplied with this option. When using the N5244/45AS Option H85 in the high power configuration (flow through R1 Loop), the analyzers R1 Input path must be set to External. In the Trace/Chan drop-down menu select Channel >...
  • Page 10 N5244/45AS Option H85 Operation Figure 3 N5244/45AS Option 200 and H85 2-Port RF Block Diagram Source 1 OUT 2 OUT 1 35 dB 35 dB 65 dB 65 dB Test Port 1 Test Port 2 Figure 4 N5244/45AS Option 200, 224 and H85 2-Port RF Block Diagram...
  • Page 11 N5244/45AS Option H85 Operation Figure 5 N5244/45AS Option 400 and H85 4-Port RF Block Diagram Source 1 OUT 2 OUT 1 Source 2 Source 2 OUT 1 OUT 1 OUT 2 OUT 2 35 dB 35 dB 35 dB 65 dB...
  • Page 12 N5244/45AS Option H85 Operation Figure 7 Standard 2-Port Front Panel Figure 8 2-Port Front Panel with Internal Second Source N5245-90002 User’s and Service Guide...
  • Page 13 N5244/45AS Option H85 Operation Figure 9 Standard 4-Port Front Panel N5245-90002 User’s and Service Guide...
  • Page 14 N5244/45AS Option H85 Operation Ports 1 and 2 are configured to allow the user to stimulate each port with high power. Each port must have a high power amplifier and high power coupler. The isolators, reference and measured receiver attenuators are optional. They are dependent on the high power couplers coupling factor, amplifiers reverse isolation and power required to test the device.
  • Page 15 N5244/45AS Option H85 Operation Figure 11 2-Port, Two Way High Power Block Diagram N5245-90002 User’s and Service Guide...
  • Page 16 N5244/45AS Option H85 Operation This configuration is similar to the 2-Port, Two Way Configuration with the exception of Ports 1, 2, 3 and 4 are configured to allow the user to stimulate each port with high power. Each port must have a high power amplifier, high power coupler, isolator and attenuators. The isolators, reference and measured receiver attenuators are optional.
  • Page 17 N5244/45AS Option H85 Operation Figure 13 4-Port, Four Way High Power Block Diagram N5245-90002 User’s and Service Guide...
  • Page 18 N5244/45AS Option H85 Operation This configuration allows the user to stimulate Port 1 with high power. Port 1 must have a high power amplifier, high power coupler, isolator and attenuators. The isolator, reference and measured receiver attenuators are optional. They are dependent on the high power couplers coupling factor, amplifiers reverse isolation and power required to test the device.
  • Page 19 N5244/45AS Option H85 Operation Figure 15 2-Port, One Way High Power Block Diagram N5245-90002 User’s and Service Guide...
  • Page 20 N5244/45AS Option H85 Operation This configuration allows the user to stimulate Port 1 with high power. Port 1 must have a high power amplifier, high power coupler, isolator and attenuators. The isolator, reference and measured receiver attenuators are optional. They are dependent on the high power couplers coupling factor, amplifiers reverse isolation and power required to test the device.
  • Page 21 N5244/45AS Option H85 Operation Figure 17 4-Port, One Way High Power Block Diagram N5245-90002 User’s and Service Guide...
  • Page 22 N5244/45AS Option H85 Operation In this configuration the DUT supplies the power. The measure receiver attenuator for B IN may have sufficient range to compensate for the users desired power level. Port 2 has a high power isolator located between the SOURCE OUT and CPLR THRU. This isolator is required to protect the components inside the PNA-X.
  • Page 23 N5244/45AS Option H85 Operation Figure 19 2-Port Forward DUT Block Diagram N5245-90002 User’s and Service Guide...

  • Page 24: Specifications: Front Panel Jumpers And Test Ports

    Port 1 through Port 4 Insertion Loss of Coupler Thru specifications are the same as the standard Option 200 or 400. Refer to the Keysight 2-Port and 4-Port PNA-X Network Analyzer Data Sheet and Technical Specifications (N5245-90008). The maximum DC Level is 40 VDC.
  • Page 25 Specifications: Front Panel Jumpers and Test Ports Refer to your PNA-X specifications to optimize the power levels in the receivers. NOTE The following tables specify the receiver damage levels for the N5244/45AS Option H85. Table 1 Damage Power Levels Measurement Receiver Inputs: RCVR A IN through RCVR D IN @ 0.1 dB Typical Compression...
  • Page 26 N5244/45AS Option H85 Specifications: Front Panel Jumpers and Test Ports Table 1 Damage Power Levels Coupler Outputs: Port 1 CPLR ARM through Port 4 @ Max Specified Output Power Damage Input Level +30 dBm Maximum DC Level ± 7 V...
  • Page 27 N5244/45AS Option H85 Specifications: Front Panel Jumpers and Test Ports Table 3 Frequency Band-Crossing Mixer Brick L.O. A7/A8/A12/A13 Band A15 Synthesizer A25 HMA26.5 A4/A17 Synthesizer A5/A10 Source Harmonic 50 GHz Doubler Frequency (GHz) Frequency (GHz) Frequency (GHz) Frequency (GHz) Number Frequency (GHz) 0.01254 to 0.01654...

  • Page 28: Example: Making High Power Measurements With Option H85

    N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 Example: Making High Power Measurements With Option H85 This section describes how to set up the analyzer to perform high power measurements. Analyzers equipped with the Option H85 can be configured to measure high power devices. This...

  • Page 29: Initial Setup

    N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 Initial Setup 1. If the analyzer is in the standard mode configuration remove the jumper between Port 1 SOURCE OUT and CPLR THRU connector on the front panel. This can also be done for Port 2 if high power measurements are necessary for the reverse parameters of a device under test (DUT).

  • Page 30: Determining Power Levels

    N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 Determining Power Levels For all high power configurations refer to Table 1 on page 21 for maximum input NOTE damage levels, and PNA-X specifications to optimize the power levels on the receivers.
  • Page 31 N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 To find the User Preset: 2. In the Utility drop-down menu select User Preset. Check User Preset Enable > Save current state as User Preset and press OK. Figure 23 User Preset 3.
  • Page 32 N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 4. Turn On the booster amplifier. 5. Measure the output power from the coupled arm and the open port “Coupler Output” of the coupler, using a power meter and sensor.

  • Page 33: Additional Setup

    N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 Add itional Setup 9. Turn Off the booster amplifier. 10.Connect the open port of the 20 dB coupler to the Port 1 CPLR THRU connector on the front panel. This can also be done on Port 2 if reverse parameters high power measurements are required.

  • Page 34: Selecting Power Ranges And Attenuator Settings

    N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 Selecting Power Ranges and Attenuator Settings 12.Select a power range that will not exceed the maximum estimated power level, but will force the DUT into compression. For example; if your booster amplifier has a gain of +15 dB, the DUT will compress if supplied with +15 dBm.
  • Page 35 N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 14.Estimate the maximum amount of gain that could be provided by the DUT, and as a result, the maximum amount of power that could be received by Test Port 2 when the DUT is in compression.
  • Page 36 N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 16. Set the receiver attenuator to the value calculated in the previous step (rounding off to the highest 5 dB step). Setting the receiver attenuation will establish the internal attenuation. In the Stimulus drop-down menu select Power >...
  • Page 37 N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 19. In the dialog box, select Port 1 Reference Mixer Switch > External and press OK to active the R1 Input path. Figure 30 Port 1 Mixer Switch 20.Measure the output power at Test Port 1, using a power meter. Verify the power measurement.

  • Page 38: Final Setup

    N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 Final Setup 21.Verify that all of the power and attenuator settings are correct. 22.In the Response drop-down menu select Measure > S21. Figure 31 Response Menu 23.To Perform a response calibration following steps a, b, c and d: a.
  • Page 39 N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 c. Select Response > Next. Figure 33 Response d. Select THRU > Next. Follow the analyzers window prompts to finish calibration. Figure 34 THRU N5245-90002 User’s and Service Guide...
  • Page 40 N5244/45AS Option H85 Example: Making High Power Measurements With Option H85 24.Configure the test setup as shown in Figure 35. Turn On the DUT and measure the S21 gain of the amplifier under test to confirm the proper operation of the measurement test setup.

  • Page 41: Specification

    Sheet and Technical Specifications (N5245-90008). This document can be found using the our web site at http://www.keysight.com/find/pna, enter N5245-90008 in the search field. Service information can be found in the Keysight N5244A and N5245A 2-Port and 4-Port PNA Microwave Network Analyzers Service Guide (N5245-90001). This document can be found using the our web site at http://www.keysight.com/find/pna, enter N5245-90001 in the search field.

  • Page 42: Replaceable Parts

    N5244/45AS Option H85 Replaceable Parts Replaceable Parts Special options are built to order, so long lead times may be encountered when NOTE ordering replacement parts. Reference Keysight PNA-X Description Designator Part Number Add: N5244/45A-200 RF Cable: Port 1 CPLR THRU to A33 Port 1 Coupler...

  • Page 43: Safety And Information

    Declaration of Conformity A copy of the Declaration of Conformity is available upon request, or a copy is available on the Keysight Technologies web site at http://regulations.corporate.keysight.com/DoC/search.htm Statement of Compliance This product has been designed and tested in accordance with accepted industry standards, and has been supplied in a safe condition.

  • Page 44: Before Applying Power

    N5244/45AS Option H85 Safety and Information Before Applying Power Verify that the premises electrical supply is within the range of the instrument. The instrument has an autoranging power supply. If this prod uct is not used as specified, the protection provided by the equipment WARNING could be impaired.

  • Page 45: Connector Care And Cleaning Precautions

    Allow all residual alcohol moisture to evaporate, and fumes to dissipate prior to energizing the instrument. To prevent electrical shock, d isconnect the N5244/45AS Option H85 from mains WARNING electrical supply before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts.

  • Page 46: Regulatory Information

    N5244/45AS Option H85 Regulatory Information Regulatory Information This section contains information that is required by various government regulatory agencies. 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 47: Electrical Safety Compliance

    N5244/45AS Option H85 Regulatory Information Electrical Safety Compliance SAFETY Complies with European Low Voltage Directive 2006/95/EC • IEC/EN 61010-1, 2 Edition • Canada: CSA C22.2 No. 61010-1-04 • USA: UL std no. 61010-1, 2 Edition • Acoustic statement (European Machinery Directive 2022/42/EC, 1.7.4.2U)...

  • Page 48: Electrostatic Discharge Protection

    N5244/45AS Option H85 Regulatory Information Electrostatic Discharge Protection Protection against electrostatic discharge (ESD) is essential while removing assemblies from or connecting cables to the network analyzer. 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 49: Keysight Support, Services, And Assistance

    Keysight for repair. If you wish to send your instrument to Keysight Technologies for service or repair: • Include a complete description of the service requested or of the failure and a description of any failed test and any error message.
  • Page 50 N5244/45AS Option H85 Keysight Support, Services, and Assistance N5245-90002 User’s and Service Guide...

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