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Extending the bandwidth

R&S

®

SMW-K555

24

User Manual 1179.5776.02 ─ 01

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. Also, RF ports are not aligned if you change the bandwidth extension
setup file.
Align the RF ports again.

To align RF ports with a signal analyzer

The signal analyzer is switched-on and connected to the R&S

 

SMW via LAN, see 

"To

connect a signal analyzer"

 

on page 17.

For prerequisites of the signal analyzer, see 

"Signal analyzer"

 

on page 12.

1. Edit a bandwidth extension setup file.

See steps (1) and (3) in 

"To manage bandwidth extension setup files"

 

on page 19.

2. Select "Align Config".

3. Select "Measurement Device" > "Analyzer".

4. Optionally, scan your network to add your signal analyzer.

5. If detected, select the signal analyzer in the "Instrument" selection.

The hostname of the signal analyzer is added automatically.

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.

8. Activate the bandwidth extension setup configuration ("State > On").

The taskbar of the R&S

 

SMW displays the softkey "Bw Ext". The softkey indicates

that the RF ports are not aligned.

9. Select "Bw Ext".

10. Select "Align RF Ports".

Configuring the R&S

 

SMW

Содержание SMW-K555

Страница 1: ...R S SMW K555 Bandwidth Extension User Manual 1179577602 Version 01 2...

Страница 2: ...rz GmbH Co KG Muehldorfstr 15 81671 Muenchen Germany Phone 49 89 41 29 0 Email info rohde schwarz com Internet www rohde schwarz com Subject to change data without tolerance limits is not binding R S...

Страница 3: ...e notes and open source acknowledgment OSA 7 1 3 9 Application notes application cards white papers etc 7 1 4 Scope 8 1 5 Notes on screenshots 8 2 About the Bandwidth Extension option 9 2 1 Required o...

Страница 4: ...5776 02 01 4 2 3 Align RF ports configuration settings 34 4 3 Setup info and alignment settings 36 4 4 Align setup wizard settings 38 5 Remote control commands 40 5 1 General commands 41 5 2 Alignment...

Страница 5: ...tion or in the R S SMW service manual 1 1 Key features Extension of the modulation bandwidth of an RF signal to up to 4 GHz Support of ARB output clock rates of up to 4 8 GHz Automatic alignment for s...

Страница 6: ...ng examples and information on maintenance instrument interfaces and error messages Includes the contents of the getting started manual Software option manual Contains the description of the specific...

Страница 7: ...brochure provides an overview of the instrument and deals with the specific char acteristics See www rohde schwarz com brochure datasheet smw200a 1 3 8 Release notes and open source acknowledgment OS...

Страница 8: ...ration such as checking the system configuration con figuring networks and remote operation Using the common status registers For a description of such tasks see the R S SMW user manual 1 5 Notes on s...

Страница 9: ...onfiguration requires R S SMW B2012 Bandwidth Extension R S SMW K555 Optional combiner kit options Combiner Kit 40 GHz R S SMW ZKK For RF output frequencies up to 40 GHz Combiner Kit 67 GHz R S SMW ZK...

Страница 10: ...cur at the bandwidth overlap fOL and result in a signal level drop at fc To compensate the signal level drop phase corrections are added so that signal level of the resulting band A B is constant over...

Страница 11: ...bout the Bandwidth Extension option R S SMW K555 11 User Manual 1179 5776 02 01 band signal source that is the R S SMW For test setups see Chapter 3 1 Test set ups on page 12 About Bandwidth Extension...

Страница 12: ...t 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...

Страница 13: ...e 3 1 Test setup R S SMW and power sensor BW 1 Bandwidth of the path A output signal BW 2 Bandwidth of the path B output signal BW Extended bandwidth signal after combining path A and path B output si...

Страница 14: ...owing procedure describes how to connect R S SMW to a power combiner Also it describes how to connect the power combiner and a directional coupler The R S SMW is switched on and connected to power For...

Страница 15: ...MW The figure below shows a power combiner connected to both RF connectors of a single R S SMW f Connect the power combiner with the directional coupler The table below provides an overview of the RF...

Страница 16: ...on use the cable R S NRP ZK6 as delivered with the R S NRP power sensor For the RF connection use a high quality cable See Cable selection and electromagnetic interference EMI in the R S SMW Getting S...

Страница 17: ...ut Direction to signal analyzer 3 3 Configuring the R S SMW This chapter provides an overview on how to configure the R S SMW for bandwidth extension It covers the following topics To load a bandwidth...

Страница 18: ...up characteristics in the pane to the right of the file list 1 2 3 4 5 Figure 3 3 Test setup preview of file test_4GHz bwsa 1 Single R S SMW using both RF ports RF A and RF B 2 Power combiner with two...

Страница 19: ...n the bandwidth extension setup file select dialog See steps 1 and 2 in To load a bandwidth extension setup on page 17 2 To create a bandwidth extension setup file proceed as follows a Select New b En...

Страница 20: ...analyzer on page 12 1 Load a bandwidth extension setup file See To load a bandwidth extension setup on page 17 2 In the general settings of the Bandwidth Extension side tab execute the follow ing a A...

Страница 21: ...ignal analyzer c Optionally add a comment to document accessories in your setup Power combiner directional coupler etc 7 To verify your test setup select Next The dialog displays a preview of the test...

Страница 22: ...setup file See steps 1 and 3 in To manage bandwidth extension setup files on page 19 The RF Ports tab of the dialog Bandwidth Extension Setup File Editor opens 2 Check the settings for a single R S S...

Страница 23: ...NRP Sensor 4 Specify the sensor ID 5 Check the parameter Sensor Name for your power sensor 6 Optionally activate Use Coupler if you use a directional coupler to automate alignment 7 Activate the bandw...

Страница 24: ...nsion setup file See steps 1 and 3 in To manage bandwidth extension setup files on page 19 2 Select Align Config 3 Select Measurement Device Analyzer 4 Optionally scan your network to add your signal...

Страница 25: ...the RF ports again 3 4 Generating signals with extended bandwidth This chapter provides an overview on how to generate signals with extended band width at the R S SMW It covers the following topics To...

Страница 26: ...gnal path A 4 Read only output RF B for signal path B 5 Read only settings for signal path B 6 Bw Ext softkey displaying an aligned setup To generate an ARB signal with extended bandwidth The R S SMW...

Страница 27: ...automatically from the wave form file You can load waveforms with up to 4 8 GHz clock frequency 3 Optionally to monitor further properties of the waveform file select Waveform Info 4 Select State On T...

Страница 28: ...setup alignment The remote commands required to define these settings are described in Chapter 5 Remote control commands on page 40 To operate the R S SMW with extended bandwidth See Chapter 3 Extendi...

Страница 29: ...also displays the filename The setup file is an archive file containing setup description file xml and the cor rection files ucor and asc Remote command SCONfiguration BEXTension SETup FILE on page 41...

Страница 30: ...mbiner 6 Signal generator block Signal generator block Setup info Displays the instrument name and the serial number of the R S SMW and configured RF outputs When selecting the block accesses settings...

Страница 31: ...extension bswa that define a bandwidth extension setup 3 To create a file select New 4 Enter the filename without extension e g test_4GHz 5 Select OK The list displays the file 6 Select Edit The dialo...

Страница 32: ...displays after the file name If you want to save the current configuration in another file select Save Setup as See Save Setup as on page 32 Remote command n a Save Setup as Saves the current configur...

Страница 33: ...ter frequency of the combined signal with extended band width Scan Instrument Scans the network for connected supported instruments RF port table Represents the RF ports configuration there is one tab...

Страница 34: ...igger Multi Instrument Trigger Secondary and yellow background At least one of the secondary instruments cannot be reached that is the remote connection to it cannot be established Check the Hostname...

Страница 35: ...r signal analyzer for synchronization For analyzer set tings see Analyzer settings on page 35 Remote command n a Sensor settings Sensor settings require Measurement Device NRP Sensor Sensor ID Sensor...

Страница 36: ...f you want to automate the alignment procedure Make sure that the output coupling factor Remote command n a 4 3 Setup info and alignment settings Access 1 Load a bandwidth extension setup file See To...

Страница 37: ...ters Sets displays the end frequency of the aligment procedure Make sure that the measurement device supports this end frequency Remote command n a Minimum PEP Alignment Parameters Sets displays the m...

Страница 38: ...ttings Measurement device settings 38 Instrument 38 Alignment Parameters 39 Start RF Frequency 39 End RF Frequency 39 Minimum PEP 39 Maximum PEP 39 Comment 39 Measurement device settings Provides sett...

Страница 39: ...ement device supports this end frequency Remote command n a Minimum PEP Alignment Parameters Sets displays the minimum peak envelope power PEP of the aligment procedure Make sure that the measurement...

Страница 40: ...with multiple entities You can address multiple entities configurations by using the SCPI commands starting with the keyword SOURce or the alias commands starting with the keyword ENTity Note that the...

Страница 41: ...Query if the file is loaded SCONfiguration BEXTension SETup FILE Response test_4GHz SCONfiguration BEXTension STATe 1 Commands SCONfiguration BEXTension SETup FILE 41 SCONfiguration BEXTension STATe...

Страница 42: ...CONfiguration BEXTension ALIGn RFPorts Triggers RF ports alignment SCONfiguration BEXTension STATe 1 Commands SCONfiguration BEXTension ALIGn RFPorts 42 SCONfiguration BEXTension ALIGn STATus 42 SCONf...

Страница 43: ...Remote control commands R S SMW K555 43 User Manual 1179 5776 02 01 Usage Query only Manual operation See Info Align on page 29 Alignment commands...

Страница 44: ...S SMW K555 44 User Manual 1179 5776 02 01 List of commands SCONfiguration BEXTension ALIGn RFPorts 42 SCONfiguration BEXTension ALIGn STATus 42 SCONfiguration BEXTension SETup FILE 41 SCONfiguration B...

Страница 45: ...ports setup 33 How to Activate bandwidth extension setup 25 Align RF ports with signal analyzer 24 Align setup with signal analyzer 20 Align with power sensor 23 Configure the RF ports 22 Generate AR...

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