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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 04

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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 04...
  • 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) © 2024 Rohde & Schwarz 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 Generating signals with an extended bandwidth.............34 4 Bandwidth extension configuration and settings......38 General settings......................38 Setup file editor settings.................... 41 4.2.1 Common settings......................41 4.2.2 RF ports settings......................42 4.2.3 Align RF port configuration settings................45 4.2.4...

  • 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

    ® Welcome to the bandwidth extension option R&S SMW-K555 Documentation overview 1.2 Accessing the bandwidth extension dialog To open the dialog with Bandwidth Extension settings 1. In the block diagram of the R&S SMW200A, select "System Config > System Con- figuration".

  • 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: Specifications And Product Brochures

    ® Welcome to the bandwidth extension option R&S SMW-K555 Documentation overview 1.4.7 Specifications and product brochures The specifications document, also known as the data sheet, contains the technical specifications of the R&S SMW200A. It also lists the firmware applications and their order numbers, and optional accessories.

  • Page 9: Scope

    ® Welcome to the bandwidth extension option R&S SMW-K555 Notes on screenshots On the menu bar, search for your product to find related videos. Figure 1-1: Product search on YouTube 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.

  • Page 10: About The Bandwidth Extension Option

    For more information, refer to the specifications document. 2.2 About bandwidth extension Equipped with option R&S SMW-K555, the R&S SMW200A allows you to extend the bandwidths 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 ure 2-1 illustrates the superposition of two adjacent baseband signals band A (band- width f , center frequency f ) and band B (bandwidth f , center frequency f...
  • Page 12 ® About the bandwidth extension option R&S SMW-K555 About bandwidth extension About phase corrections You can obtain phase correction data, for example, from a coupled alignment source after combining the baseband signals. The alignment source can be a power sensor or a spectrum analyzer.

  • Page 13: Extending The Bandwidth Of Rf Signals

    ® Extending the bandwidth of RF signals R&S SMW-K555 Test setups 3 Extending the bandwidth of RF signals This chapter provides an overview on how to prepare, configure and operate the R&S SMW200A or multiple R&S SMW200A instruments for generation of extended bandwidth signals.

  • Page 14: Single R&S Smw200A With Sensor

    ® Extending the bandwidth of RF signals R&S SMW-K555 Test setups 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 Smw200A With Signal Analyzer

    ® Extending the bandwidth of RF signals R&S SMW-K555 Test setups BW 1 = Bandwidth of the path A output signal BW 2 = Bandwidth of the path B output signal Σ BW = Extended bandwidth signal after combining path A and path B output signals...

  • Page 16: Dual R&S Smw200A With Signal Analyzer

    ® Extending the bandwidth of RF signals 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 Smw200A

    ® Extending the bandwidth of RF signals R&S SMW-K555 Connecting the R&S SMW200A R&S SMW200A 1 = Primary R&S SMW200A R&S SMW200A 2 = Secondary R&S SMW200A BW 1 = Bandwidth of the primary R&S SMW200A RF output signal BW 2 = Bandwidth of the secondary R&S SMW200A RF output signal...
  • Page 18 ® Extending the bandwidth of RF signals R&S SMW-K555 Connecting the R&S SMW200A 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 ® Extending the bandwidth of RF signals R&S SMW-K555 Connecting the R&S SMW200A Connect the power combiner with the directional coupler. The tables Table 3-2 Table 3-3 provide an overview of relevant connections. To connect a directional coupler Use a directional coupler to automate alignment.

  • Page 20: Connecting Multiple R&S Smw200A Instruments

    ® Extending the bandwidth of RF signals R&S SMW-K555 Connecting the R&S SMW200A Table 3-2: Connections single R&S SMW200A with power sensor Signal R&S SMW200A Power combiner Power sensor Directional cou- pler Sensor con- "SENSOR" Host connector trol RF Out "RF A"...
  • Page 21 ® Extending the bandwidth of RF signals R&S SMW-K555 Connecting the R&S SMW200A ● "To connect the R&S SMW200A instruments" on page 21 ● "To connect a power combiner" on page 21 ● "To connect a directional coupler" on page 19 ●...
  • Page 22 ® Extending the bandwidth of RF signals R&S SMW-K555 Connecting the R&S SMW200A Table 3-4: Connections dual R&S SMW200A with power sensor Signal Prim. Sec. Power combiner Power sensor Directional coupler R&S SMW200A R&S SMW200A Sensor con- "SENSOR" Host connector...

  • Page 23: Configuring The R&S Smw200A

    ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A 3.3 Configuring the R&S SMW200A This chapter provides step-by-step instructions on how to configure the R&S SMW200A for bandwidth extension. These instructions cover the following topics: ●...
  • Page 24 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A See also "To configure RF ports of a single R&S SMW200A" on page 29. 4. Select "Save". If your setup file is correct, proceed with the instruction "To align the setup with a...
  • Page 25 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A = Single R&S SMW200A using both RF ports "RF A" and "RF B" = Power combiner with two RF inputs and one output 3, 4 = Power combiner inputs "In 1" and "In 2" and output "Ʃ"...
  • Page 26 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A To align the setup with a signal analyzer This step-by-step instruction describes how to execute an alignment of your bandwidth extension setup. Typically, align the setup once assuming that you do not change the cabling or connected devices in your setup.
  • Page 27 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A c) Optionally, add a comment to document the equipment of your setup, for exam- ple: SMW-B1020 (000000), FSW-67 (100000), power combiner, directional coupler, etc. 7. To verify your test setup, select "Next".
  • Page 28 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A Figure 3-8: BW extension setup with coupler 8. Select "Align Setup". Selection triggers the actual setup alignment procedure. The R&S SMW200A dis- plays the "Busy" in the status bar.
  • Page 29 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A After setup alignment, check if the RF ports configuration is correct, see "To configure RF ports of a single R&S SMW200A" on page 29. To configure RF ports of a single R&S SMW200A 1.
  • Page 30 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A Continue with aligning the RF ports. You have two options: ● "To align RF ports with a signal analyzer" on page 30 ● "To align RF ports with a power sensor"...
  • Page 31 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A Figure 3-9: BW extension setup with coupled analyzer (FSW-67) 9. Alternatively, close this dialog to check the setup info pane in the general settings dialog via "Multi Instrument" > "Bandwidth Extension".
  • Page 32 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A Misaligned RF ports If you change the parameters of the RF output signal at the R&S SMW200A, the RF ports are not aligned anymore. For example, if you change the frequency or the level of the RF output signal.
  • Page 33 ® Extending the bandwidth of RF signals R&S SMW-K555 Configuring the R&S SMW200A Figure 3-10: BW extension setup with coupled sensor (NRP-Z51) 9. Alternatively, close this dialog to check the setup info pane in the general settings dialog via "Multi Instrument" > "Bandwidth Extension".

  • Page 34: Generating Signals With An Extended Bandwidth

    ® Extending the bandwidth of RF signals R&S SMW-K555 Generating signals with an extended bandwidth To align the setup with user-defined corrections Optionally, add user-defined corrections of I/Q delay and phase of individual RF sour- ces. You can also use these corrections for manual setup alignment, for example if you have no alignment source.
  • Page 35 ® Extending the bandwidth of RF signals R&S SMW-K555 Generating signals with an extended bandwidth Figure 3-11: Enabled bandwidth extension and R&S SMW200A 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 ® Extending the bandwidth of RF signals R&S SMW-K555 Generating signals with an 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 ® Extending the bandwidth of RF signals R&S SMW-K555 Generating signals with an extended bandwidth To upconvert an RF output signal with an extended bandwidth Equipped with option R&S SMW-K553 and connected to an external frontend, the R&S SMW200A can also output upconverted RF signals with extended bandwidth.

  • Page 38: 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 39: General Settings

    ® 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..........................39 Setup..........................39 Info / Align........................
  • Page 40 ® Bandwidth extension configuration and settings R&S SMW-K555 General settings 1 = Toggle to enable the bandwidth extension 2 = Bandwidth extension setup file: test_4GHz.bwsa 3 = Setup alignment info, alignment status and access to setup alignment wizard 4 = Device under test (DUT) block...

  • Page 41: 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 42: Rf Ports Settings

    ® Bandwidth extension configuration and settings R&S SMW-K555 Setup file editor settings Settings: Save..........................42 Save As.........................42 Save Saves the current configuration of the bandwidth extension setup file. Selecting "Save Setup" overwrites a previous configuration of the file. If you change the configuration of the file, the dialog header displays "*"...
  • Page 43 ® Bandwidth extension configuration and settings R&S SMW-K555 Setup file editor settings Settings: Number of Ports......................43 Scan Signal Generators....................43 Refresh Remote Status....................43 RF port table......................... 43 └ Port number....................43 └ Source.......................43 └ Hostname or IP Address.................44 └...
  • Page 44 ® Bandwidth extension configuration and settings R&S SMW-K555 Setup file editor settings Hostname or IP Address ← RF port table Sets the IP address or host name of the connected external instrument. Remote command: n.a. Maximum Frequency ← RF port table Displays the maximum frequency at the RF port.

  • Page 45: Align Rf Port Configuration Settings

    ® Bandwidth extension configuration and settings R&S SMW-K555 Setup file editor settings 4.2.3 Align RF port configuration settings Access: 1. Edit a bandwidth extension file as described in Chapter 4.2, "Setup file editor set- tings", on page 41. 2. Select "Align RF Ports Config".
  • Page 46 ® Bandwidth extension configuration and settings R&S SMW-K555 Setup file editor settings Sensor settings Sensor settings require "Measurement Device" > "NRP Sensor". Sensor ID ← Sensor settings Sets the ID number of the used R&S NRP sensor. Remote command: n.a.

  • Page 47: Setup Overview

    ® Bandwidth extension configuration and settings R&S SMW-K555 Setup info and alignment settings 4.2.4 Setup overview Access: 1. Edit a bandwidth extension file as described in Chapter 4.2, "Setup file editor set- tings", on page 41. 2. Select "Setup Overview".
  • Page 48 ® Bandwidth extension configuration and settings R&S SMW-K555 Setup info and alignment settings "To load a bandwidth extension setup" on page 24. 2. Select "Info / Align". 3. Select "Setup Alignment". The tab displays information on the setup alignment configuration and provides access to settings for alignment of the bandwidth extension setup.

  • Page 49: Current Corrections Settings

    ® Bandwidth extension configuration and settings R&S SMW-K555 Setup info and alignment settings Remote command: :SCONfiguration:BEXTension:INFO:ALIGn:FREQuency:MINimum? on page 59 End RF Frequency ← Alignment Parameters Sets or displays the end frequency of the alignment procedure. Make sure that the measurement device supports this end frequency.
  • Page 50 ® Bandwidth extension configuration and settings R&S SMW-K555 Setup info and alignment settings 3. Select "Current Corrections". The tab displays information on alignment parameters and provides settings to configure user-defined corrections. The values of the alignment parameters result from setup alignment and RF ports alignment.

  • Page 51: Setup Overview

    ® Bandwidth extension configuration and settings R&S SMW-K555 Setup info and alignment settings Remote command: :SCONfiguration:BEXTension:CORRection:PORT<ch>:IQDelay? on page 61 Additional IQ Delay (ps) ← Current corrections table Sets an additional I/Q delay as an offset to the I/Q delay from setup alignment at the selected RF port.

  • Page 52: Align Setup Wizard Settings

    ® Bandwidth extension configuration and settings R&S SMW-K555 Align setup wizard settings 3. Select "Setup Overview". The tab provides an overview of the currently configured bandwidth extension setup. See also "Setup info pane" on page 39. 4.4 Align setup wizard settings Access: 1.
  • Page 53 ® Bandwidth extension configuration and settings R&S SMW-K555 Align setup wizard settings 3. Select "Align Setup". The dialog provides settings for alignment of the bandwidth extension setup. How to: "To align the setup with a signal analyzer" on page 26...
  • Page 54 ® Bandwidth extension configuration and settings R&S SMW-K555 Align setup wizard settings Scan Analyzers ← Analyzer Config Scans the network for connected, supported vector signal analyzers. Remote command: n.a. Hostname or IP Address ← Analyzer Config Displays or sets the host name or IP address of the vector signal analyzer.

  • 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 SMW200A has already been set up for remote operation in a network as described in the R&S SMW200A doc- umentation.

  • Page 56: General Commands

    ® Remote control commands R&S SMW-K555 General commands ● General commands....................56 ● Alignment commands....................57 ● User correction commands..................60 5.1 General commands The SCONfiguration:BEXTension subsystem contains the commands for configu- ration of a bandwidth extension setup. Example: To load a bandwidth extension setup file :SCONfiguration:BEXTension:SETup:FILE? // Response: ""...

  • Page 57: Alignment Commands

    ® Remote control commands R&S SMW-K555 Alignment commands Manual operation: "State" on page 39 5.2 Alignment commands The SCONfiguration:BEXTension:ALIGn subsystem contains the commands for aligning a bandwidth extension setup. Example: To align the bandwidth extension setup and RF ports :SCONfiguration:BEXTension:ALIGn:STATus? // Repsonse: "NALigned"...
  • Page 58 ® Remote control commands R&S SMW-K555 Alignment commands ........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? :SCONfiguration:BEXTension:ALIGn:RFPorts Requires an active measurement device. Triggers alignment of the RF ports and considers phase corrections. If you use an ana- lyzer as a measurement device, RF ports alignment also considers cable length cor- rections.
  • Page 59 ® Remote control commands R&S SMW-K555 Alignment commands :SCONfiguration:BEXTension:INFO:ALIGn:DATE? Queries the date of the last setup alignment procedure. Return values: <AlignDate> string Example: Example "To query setup alignment information" on page 57. Usage: Query only Manual operation: "Align Date / Time"...

  • Page 60: User Correction Commands

    ® Remote control commands R&S SMW-K555 User correction commands Return values: <MaxPep> float Range: -145 to 30 Increment: 0.01 *RST: n.a. (factory preset: 30) Example: Example "To query setup alignment information" on page 57. Usage: Query only Manual operation: "Maximum PEP"...
  • Page 61 ® Remote control commands R&S SMW-K555 User correction commands Example: To apply user-defined corrections to RF ports // Reset all previous correction settings. :SCONfiguration:BEXTension:CORRection:RESet // Query the RF source instrument at port 1. :SCONfiguration:BEXTension:CORRection:PORT1:SOURce? // Response: "SMW200A (123456) [A] (this)"...
  • Page 62 ® Remote control commands R&S SMW-K555 User correction commands Parameters: <AdditionalDelay> float Range: 0 to 1E-9 Increment: 1E-12 *RST: n.a. (factory preset: 0) Example: Example "To apply user-defined corrections to RF ports" on page 61. Manual operation: "Additional IQ Delay (ps)"...
  • Page 63 ® Remote control commands R&S SMW-K555 User correction commands :SCONfiguration:BEXTension:CORRection:PORT<ch>:SOURce? Queries the RF source of the RF port. Return values: <RfSourceName> string Example: Example "To apply user-defined corrections to RF ports" on page 61. Usage: Query only Manual operation: "RF Source"...

  • 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..........61 :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?................59 :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 ─ 04...

  • 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 ............46 Host name ............46, 54 Getting started ..............6 Instrument ............. 46, 53 IP address .............
  • Page 66 ® Index R&S SMW-K555 Service manual ..............7 Setup alignment Date ................48 Time ................48 Setup file editor Alignment configuration settings ......... 45 Common settings ............41 RF ports settings ............42 Save setup settings ............ 41 Setup overview ............47 Setup info / align Align setup ..............

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