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Rohde & Schwarz SMW-K555 User Manual

Rohde & Schwarz SMW-K555 User Manual

Bandwidth extension
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R&S
SMW-K555
Bandwidth Extension
User Manual
(;ÝÇÚ2)
1179577602
Version 03

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Summary of Contents for Rohde & Schwarz SMW-K555

  • Page 1 ® R&S SMW-K555 Bandwidth Extension User Manual (;ÝÇÚ2) 1179577602 Version 03...
  • Page 2 This document describes the following software options and accessory options: ● R&S ® SMW-K555 Bandwidth Extension (1414.6229.xx) ● ® R&S SMW-ZKK Combiner Kit 40 GHz (1434.7908.02) ● ® R&S SMW-ZKV Combiner Kit 67 GHz (1434.7989.02) © 2023 Rohde & Schwarz GmbH & Co. KG Muehldorfstr.

  • Page 3: Table Of Contents

    ® Contents R&S SMW-K555 Contents 1 Welcome to the Bandwidth Extension option........5 Key features........................5 Accessing the Bandwidth Extension dialog...............6 What's new........................6 Documentation overview....................6 1.4.1 Getting started manual....................6 1.4.2 User manuals and help....................7 1.4.3 Tutorials...........................7 1.4.4 Service manual....................... 7 1.4.5...
  • Page 4 ® Contents R&S SMW-K555 4 Bandwidth Extension configuration and settings......39 General settings......................39 Setup file editor settings.................... 42 4.2.1 Common settings......................43 4.2.2 RF ports settings......................44 4.2.3 Align RF ports configuration settings................46 Setup info and alignment settings................48 4.3.1...

  • Page 5: Welcome To The Bandwidth Extension Option

    Key features 1 Welcome to the Bandwidth Extension option The R&S SMW-K555 option Bandwidth Extension is a firmware application that allows extension of the modulation bandwidth to up to 4 GHz. This user manual contains a description of the functionality that the application pro- vides, including remote control operation.

  • Page 6: Accessing The Bandwidth Extension Dialog

    13 and Chapter 3.2.2, "Connecting multiple R&S SMW instru- ments", on page 20. ● Compatibility of option R&S SMW-K555 with option R&S SMW-K177 to generate 4 GHz bandwidth 802.11ay signals, see Chapter 1.1, "Key features", on page 5.

  • Page 7: User Manuals And Help

    ® Welcome to the Bandwidth Extension option R&S SMW-K555 Documentation overview 1.4.2 User manuals and help Separate manuals for the base unit and the software options are provided for down- load: ● Base unit manual Contains the description of all instrument modes and functions. It also provides an...

  • Page 8: Data Sheets And Brochures

    ® Welcome to the Bandwidth Extension option R&S SMW-K555 Documentation overview 1.4.7 Data sheets and brochures The data sheet contains the technical specifications of the R&S SMW. It also lists the options and their order numbers and optional accessories. The brochure provides an overview of the instrument and deals with the specific char- acteristics.

  • Page 9: Scope

    ® Welcome to the Bandwidth Extension option R&S SMW-K555 Notes on screenshots 1.5 Scope Tasks (in manual or remote operation) that are also performed in the base unit in the same way are not described here. In particular, it includes: ●...

  • Page 10: About The Bandwidth Extension Option

    For output of upconverted RF signals with extended bandwidth For more information, see data sheet. 2.2 About Bandwidth Extension Equipped with option R&S SMW-K555, the R&S SMW allows you to extend band- widths of I/Q modulated signals. Principle A practical approach is to superimpose RF signals with center frequencies close to each other.
  • Page 11 ® About the Bandwidth Extension option R&S SMW-K555 About Bandwidth Extension Figure 2-1: Bandwidth extension without phase corrections = Band A = Band B = Bandwidth band A BW A = Bandwidth band B BW B = Extended bandwidth of band A and band B...
  • Page 12 ® About the Bandwidth Extension option R&S SMW-K555 About Bandwidth Extension a spectrum analyzer. Also, this alignment source has direct feedback (LAN) to the baseband signal source that is the R&S SMW. For test setups, see Chapter 3.1, "Test setups", on page 13.

  • Page 13: Generating Rf Signals With Extended Bandwidth

    ® Generating RF signals with extended bandwidth R&S SMW-K555 Test setups 3 Generating RF signals with extended band- width This chapter provides an overview on how to prepare, configure and operate the R&S SMW or multiple R&S SMW instruments for generation of extended bandwidth signals.

  • Page 14: Single R&S Smw With Sensor

    ® Generating RF signals with extended bandwidth R&S SMW-K555 Test setups output signal. For example, use the combiner kit R&S SMW-ZKK, if your test setup generates RF signals with a maximum frequency of 40 GHz. Directional coupler To automate alignment of your test setup, you can use a directional coupler. For cor- rect operation, use a directional coupler with an output coupling factor that is not higher than 10 dB.

  • Page 15: Single R&S Smw With Signal Analyzer

    ® Generating RF signals with extended bandwidth R&S SMW-K555 Test setups RF A BW 1 R&S SMW ∑ BW Coupler SENSOR RF B BW 2 Power sensor Figure 3-1: Test setup: R&S SMW and power sensor BW 1 = Bandwidth of the path A output signal...

  • Page 16: Dual R&S Smw With Signal Analyzer

    ® Generating RF signals with extended bandwidth R&S SMW-K555 Test setups R&S SMW 1 RF A/B BW 1 ∑ BW Coupler 1 GHz Out BW 2 ADV TRG SENSOR Host RF In R&S SMW 2 RF A/B ADV CLK Power...

  • Page 17: Connecting The R&S Smw

    ® Generating RF signals with extended bandwidth R&S SMW-K555 Connecting the R&S SMW R&S SMW 1 = Primary R&S SMW R&S SMW 2 = Secondary R&S SMW BW 1 = Bandwidth of the primary R&S SMW RF output signal BW 2 = Bandwidth of the secondary R&S SMW RF output signal...
  • Page 18 ® Generating RF signals with extended bandwidth R&S SMW-K555 Connecting the R&S SMW 4. Establish the RF connections. Step (d) and following steps of this step-by-step instruction assume a connection to an R&S SMW-ZKV combiner kit. Connecting other power combiners is analogous.
  • Page 19 ® Generating RF signals with extended bandwidth R&S SMW-K555 Connecting the R&S SMW To connect a directional coupler Use a directional coupler to automate alignment. For prerequisites of the directional coupler, see "Directional coupler" on page 14. ► Establish the RF connections to the directional coupler as described in the other step-by-step instructions: ●...

  • Page 20: Connecting Multiple R&S Smw Instruments

    ® Generating RF signals with extended bandwidth R&S SMW-K555 Connecting the R&S SMW Table 3-2: Connections single R&S SMW with power sensor Signal R&S SMW Power combiner Power sensor Directional cou- pler Sensor con- "SENSOR" Host connector trol RF Out "RF A"...
  • Page 21 ® Generating RF signals with extended bandwidth R&S SMW-K555 Connecting the R&S SMW ● "To connect the R&S SMW instruments" on page 21 ● "To connect a power combiner" on page 21 ● "To connect a directional coupler" on page 19 ●...

  • Page 22: Configuring The R&S Smw

    ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW To connect a signal analyzer The following step-by-step instruction describes how to connect R&S SMW and a directional coupler to an Rohde & Schwarz signal analyzer as alignment source. The R&S SMW and signal analyzer are switched on and connected to power.
  • Page 23 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW To create a bandwidth extension setup file The following procedure describes how to create, edit and save a bandwidth extension setup file. 1. Select "System Configuration" > "Multi Instrument" > Bandwidth Extension".
  • Page 24 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW ● "To align RF ports with a power sensor" on page 32 6. Select "Save". If your bandwidth extension setup file is correct, proceed with instruction "To align the setup with a signal analyzer"...
  • Page 25 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW Figure 3-5: Preview of setup file test_4GHz.bwsa 1 = Single R&S SMW using both RF ports "RF A" and "RF B" 2 = Power combiner with two RF inputs and one output 3 = Power combiner inputs "In 1"...
  • Page 26 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW Figure 3-6: BW extension control and setup info (no coupler) 1 = Bandwidth extension state 2 = Bandwidth extension setup file: test_4GHz.bwsa 3 = Setup alignment info, alignment status and access to setup alignment wizard...
  • Page 27 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW "To load a bandwidth extension setup" on page 24. 2. In the general settings of the "Bandwidth Extension" side-tab, execute the follow- ing: a) Activate bandwidth extension ("State" > "On").
  • Page 28 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW 7. To verify your test setup, select "Next". The dialog provides instructions and settings on how to proceed with setup align- ment. Also, it previews of the test setup as configured in test setup file editor.
  • Page 29 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW Figure 3-8: BW extension setup with coupler 8. Select "Align Setup". Selection triggers the actual setup alignment procedure. The R&S SMW displays the "Busy" in the status bar.
  • Page 30 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW 2. Check the settings for a single R&S SMW: ● "Number of RF Ports" > "2" The setting is fixed for a single R&S SMW. ● "Resulting Bandwidth" = "4.0 GHz"...
  • Page 31 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW 6. To add the signal analyzer manually, proceed as follows: a) Select "Instrument" > "New". b) Specify hostname or IP address of the signal analyzer. 7. Optionally, activate "Use Coupler", if you use a directional coupler to automate alignment.
  • Page 32 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW The alignment procedure applies corrections to the local oscillator (LO) phase. If the alignment runs correctly, the "Bw Ext" softkey displays no errors. If you change parameters of the RF output signal at the R&S SMW, the RF ports are not aligned anymore.
  • Page 33 ® Generating RF signals with extended bandwidth R&S SMW-K555 Configuring the R&S SMW 7. Optionally, activate "Use Coupler", if you use a directional coupler to automate alignment. 8. Check your setup for RF ports alignment in the setup info pane.

  • Page 34: Generating Signals With Extended Bandwidth

    ® Generating RF signals with extended bandwidth R&S SMW-K555 Generating signals with extended bandwidth If you change parameters of the RF output signal at the R&S SMW, the RF ports are not aligned anymore. For example, if you change the frequency or the level of the RF output signal.
  • Page 35 ® Generating RF signals with extended bandwidth R&S SMW-K555 Generating signals with extended bandwidth Figure 3-11: Active bandwidth extension and R&S SMW block diagram 1 = One baseband block for both signal paths "A" and "B" 2 = Configurable settings for signal path A 3 = Configurable output "RF A"...
  • Page 36 ® Generating RF signals with extended bandwidth R&S SMW-K555 Generating signals with extended bandwidth The "Clock Frequency" reads out the ARB clock rate automatically from the wave- form file. You can load waveforms with up to 4.8 GHz clock frequency.
  • Page 37 ® Generating RF signals with extended bandwidth R&S SMW-K555 Generating signals with extended bandwidth To upconvert an RF output signal with extended bandwidth Equipped with option R&S SMW-K553 and connected to an external frontend, the R&S SMW can also output upconverted RF signals with extended bandwidth.
  • Page 38 ® Generating RF signals with extended bandwidth R&S SMW-K555 Generating signals with extended bandwidth For more information, see the "R&S SMW-K553 Frontend Control User Manual". User Manual 1179.5776.02 ─ 03...

  • Page 39: Bandwidth Extension Configuration And Settings

    ® Bandwidth Extension configuration and settings R&S SMW-K555 General settings 4 Bandwidth Extension configuration and set- tings Access: ► Select "System Configuration" > "Multi Instrument" > Bandwidth Extension". The dialog provides settings to configure settings of the bandwidth extension setup and setup alignment.
  • Page 40 ® Bandwidth Extension configuration and settings R&S SMW-K555 General settings The "Bandwidth Extension" side-tab provides general settings to configure settings of the bandwidth extension setup. Also it provides access to settings for setup and RF ports alignment. Settings: State..........................40 Setup..........................40 Info / Align........................
  • Page 41 ® Bandwidth Extension configuration and settings R&S SMW-K555 General settings 1 = Bandwidth extension state 2 = Bandwidth extension setup file 3 = Alignment info, alignment status and access to setup alignment wizard 4 = Device under test (DUT) 5 = Power combiner 6 = Signal generator block Signal generator block ←...

  • Page 42: Setup File Editor Settings

    ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup file editor settings Remote command: on page 58 :SCONfiguration:BEXTension:ALIGn:RFPorts on page 58 :SCONfiguration:BEXTension:ALIGn:STATus? 4.2 Setup file editor settings Access: 1. Select "System Configuration" > "Multi Instrument" > Bandwidth Extension". 2. Select "Setup".

  • Page 43: Common Settings

    ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup file editor settings 4.2.1 Common settings Access: ► Edit a bandwidth extension file as described in Chapter 4.2, "Setup file editor set- tings", on page 42. The dialog provides common settings to save the configuration of the bandwidth extension setup in a file.

  • Page 44: Rf Ports Settings

    ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup file editor settings 4.2.2 RF ports settings Access: 1. Edit a bandwidth extension file as described in Chapter 4.2, "Setup file editor set- tings", on page 42. 2. Select "RF Ports".
  • Page 45 ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup file editor settings Remote command: n.a. Scan Instruments Scans the network for connected, supported instruments. Remote command: :SCONfiguration:EXTernal:REMote:SCAN RF port table Represents the RF ports configuration; there is one table row per RF port.

  • Page 46: Align Rf Ports Configuration Settings

    ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup file editor settings Remote command: n.a. 4.2.3 Align RF ports configuration settings Access: 1. Edit a bandwidth extension file as described in Chapter 4.2, "Setup file editor set- tings", on page 42.
  • Page 47 ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup file editor settings "Analyzer" Selects a vector signal analyzer for RF ports alignment. For analyzer settings, see "Analyzer settings" on page 47. Remote command: n.a. Sensor settings Sensor settings require "Measurement Device" > "NRP Sensor".

  • Page 48: Setup Info And Alignment Settings

    ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup info and alignment settings 4.3 Setup info and alignment settings Access: 1. Load a bandwidth extension setup file. "To load a bandwidth extension setup" on page 24. 2. Select "Info / Align".
  • Page 49 ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup info and alignment settings └ Minimum PEP....................49 └ Maximum PEP....................49 Comment........................49 Align Date / Time Displays the date and time of the last setup alignment procedure. Remote command: on page 59...

  • Page 50: Current Corrections Settings

    ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup info and alignment settings Use this input field to specify characteristics of the alignment or the bandwidth exten- sion setup. Remote command: on page 58 :SCONfiguration:BEXTension:INFO:ALIGn:COMMent? 4.3.2 Current corrections settings Access: 1.
  • Page 51 ® Bandwidth Extension configuration and settings R&S SMW-K555 Setup info and alignment settings Current corrections table Provides current corrections and user-defined corrections in a table. RF Source ← Current corrections table Indicates the physical instrument which the RF port belongs to.

  • Page 52: Align Setup Wizard Settings

    ® Bandwidth Extension configuration and settings R&S SMW-K555 Align setup wizard settings Remote command: on page 62 :SCONfiguration:BEXTension:CORRection:PORT<ch>:LEVel? 4.4 Align setup wizard settings Access: 1. Load a bandwidth extension setup file. "To load a bandwidth extension setup" on page 24.
  • Page 53 ® Bandwidth Extension configuration and settings R&S SMW-K555 Align setup wizard settings Instrument ← Analyzer configuration settings Selects an instrument from a list as a result from "Scan Analyzers". To add instruments manually, select "Instrument" > "New" and set their hostname or IP address.
  • Page 54 ® Bandwidth Extension configuration and settings R&S SMW-K555 Align setup wizard settings Comment Enters/displays free input of the alignment setup. Use this input field to specify characteristics of the alignment or the bandwidth exten- sion setup. Remote command: on page 58 :SCONfiguration:BEXTension:INFO:ALIGn:COMMent? User Manual 1179.5776.02 ─...

  • Page 55: Remote Control Commands

    ® Remote control commands R&S SMW-K555 5 Remote control commands The following commands are required to generate signals with the Bandwidth Exten- sion option in a remote environment. We assume that the R&S SMW has already been set up for remote operation in a network as described in the R&S SMW documentation.

  • Page 56: General Commands

    ® Remote control commands R&S SMW-K555 General commands The following chapters describe the commands specific to the Bandwidth Extension option. ● General commands....................56 ● Alignment commands....................57 ● User correction commands..................61 5.1 General commands The SCONfiguration:BEXTension subsystem contains the commands for configu- ration of a bandwidth extension setup.

  • Page 57: Alignment Commands

    ® Remote control commands R&S SMW-K555 Alignment commands Example: Example"Loading a bandwidth extension setup file" on page 56. Manual operation: "State" on page 40 5.2 Alignment commands The SCONfiguration:BEXTension:ALIGn subsystem contains the commands for aligning a bandwidth extension setup. Example: Aligning the bandwidth extension setup and RF ports SCONfiguration:BEXTension:ALIGn:STATus? // Repsonse: "NALigned"...
  • Page 58 ® Remote control commands R&S SMW-K555 Alignment commands Commands ..............58 :SCONfiguration:BEXTension:ALIGn:RFPorts ..............58 :SCONfiguration:BEXTension:ALIGn:STATus? ............58 :SCONfiguration:BEXTension:INFO:ALIGn:COMMent? .............. 59 :SCONfiguration:BEXTension:INFO:ALIGn:DATE? ........59 :SCONfiguration:BEXTension:INFO:ALIGn:FREQuency:MAXimum? ........59 :SCONfiguration:BEXTension:INFO:ALIGn:FREQuency:MINimum? ..........60 :SCONfiguration:BEXTension:INFO:ALIGn:PEP:MAXimum? ..........60 :SCONfiguration:BEXTension:INFO:ALIGn:PEP:MINimum? ............... 60 :SCONfiguration:BEXTension:INFO:ALIGn:TIME? :SCONfiguration:BEXTension:ALIGn:RFPorts Requires an active measurement device.
  • Page 59 ® Remote control commands R&S SMW-K555 Alignment commands Return values: <Comment> string Example: Example"Querying setup alignment information" on page 57. Usage: Query only Manual operation: "Comment" on page 49 :SCONfiguration:BEXTension:INFO:ALIGn:DATE? Queries the date of the last setup alignment procedure. Return values: <AlignDate>...
  • Page 60 ® Remote control commands R&S SMW-K555 Alignment commands Usage: Query only Manual operation: "Start RF Frequency" on page 49 :SCONfiguration:BEXTension:INFO:ALIGn:PEP:MAXimum? Queries the maximum peak envelope power (PEP) of the setup aligment procedure. Make sure, that the measurement device supports this power value.

  • Page 61: User Correction Commands

    ® Remote control commands R&S SMW-K555 User correction commands 5.3 User correction commands The SCONfiguration:BEXTension:CORRection subsystem contains the com- mands for applying user-defined corrections to a bandwidth extension setup. Example: Applying user-defined corrections to RF ports // Reset all previous correction settings.
  • Page 62 ® Remote control commands R&S SMW-K555 User correction commands :SCONfiguration:BEXTension:CORRection:PORT<ch>:IQDelay:ADDitional <AdditionalDelay> Sets an additional IQ delay as an offset to the current IQ delay at the selected RF port. Parameters: <AdditionalDelay> float Range: 0 to 1E-9 Increment: 1E-12 *RST: n.a. (factory preset: 0) Example: Example"Applying user-defined corrections to RF ports"...
  • Page 63 ® Remote control commands R&S SMW-K555 User correction commands Parameters: <AdditionalPhase> float Range: -360 to 360 Increment: 0.1 *RST: n.a. (factory preset: 0) Example: Example"Applying user-defined corrections to RF ports" on page 61. :SCONfiguration:BEXTension:CORRection:PORT<ch>:SOURce? Queries the RF source of the RF port.

  • Page 64: List Of Commands

    ® List of commands R&S SMW-K555 List of commands :SCONfiguration:BEXTension:ALIGn:RFPorts....................58 :SCONfiguration:BEXTension:ALIGn:STATus?....................58 :SCONfiguration:BEXTension:CORRection:PORT<ch>:IQDelay:ADDitional..........62 :SCONfiguration:BEXTension:CORRection:PORT<ch>:IQDelay?..............61 :SCONfiguration:BEXTension:CORRection:PORT<ch>:LEVel?..............62 :SCONfiguration:BEXTension:CORRection:PORT<ch>:PHASe:ADDitional........... 62 :SCONfiguration:BEXTension:CORRection:PORT<ch>:PHASe?..............62 :SCONfiguration:BEXTension:CORRection:PORT<ch>:SOURce?..............63 :SCONfiguration:BEXTension:CORRection:RESet..................63 :SCONfiguration:BEXTension:INFO:ALIGn:COMMent?.................. 58 :SCONfiguration:BEXTension:INFO:ALIGn:DATE?..................59 :SCONfiguration:BEXTension:INFO:ALIGn:FREQuency:MAXimum?............. 59 :SCONfiguration:BEXTension:INFO:ALIGn:FREQuency:MINimum?.............. 59 :SCONfiguration:BEXTension:INFO:ALIGn:PEP:MAXimum?................60 :SCONfiguration:BEXTension:INFO:ALIGn:PEP:MINimum?................60 :SCONfiguration:BEXTension:INFO:ALIGn:TIME?..................60 :SCONfiguration:BEXTension:SETup:FILE......................56 :SCONfiguration:BEXTension:STATe.......................56 User Manual 1179.5776.02 ─ 03...

  • Page 65: Index

    ® Index R&S SMW-K555 Index About Bandwidth Extension ..........10 Extending the bandwidth Required options ............10 Test setups ..............13 Align RF ports configuration Analyzer settings ............47 Hostname ............. 47, 53 Getting started ..............6 Instrument ............. 47, 53 IP address .............
  • Page 66 ® Index R&S SMW-K555 Service manual ..............7 Setup alignment Date ................49 Time ................49 Setup file editor Alignment configuration settings ......... 46 Common settings ............43 RF ports settings ............44 Save setup settings ............ 43 Setup info / align Align setup ..............

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