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Product brochure Version 01.00 November 2004 Version 02.03 September 2006 Vector Signal Generator ¸SMU200A The art of signal generation
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Page 1: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Prod

uct b

roch

ure

Version 01.00

November 2004

Version

02.03

September

2006

Vector Signal Generator ¸SMU200AThe art of signal generation

Page 2: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

� Vector Signal Generator ¸SMU200A

TheVectorSignalGenerator¸SMU�00Ahasbeendesignedtomeetallrequirementsencounteredinre-searchanddevelopmentofmoderncom-municationssystemsaswellasintheirproduction.The¸SMU�00Anotonlycombinesuptotwoindependentsignalgeneratorsinonecabinetofonlyfourheightunits–italsooffersunrivaledRFandbasebandcharacteristics.

Highlights of a new generation

Duetoitsmodulardesign,the¸SMU�00Acanbeoptimallyadapt-edtotherequirementsofdifferentap-plications.ThefirstRFpathcanbeequippedwithoneofthefouravailablefrequencyoptions.Theupperfrequen-cylimitof�.�GHz/3GHz/4GHzor6GHzisuser-selectable.Inaddition,asecondRFpathcanbeinstalledwithupperfre-quencylimitsof�.�GHzand3GHz.Thelowerfrequencylimitofallfrequencyoptionsis100kHz.

Uptotwogeneratorscanalsobein-stalledinthebasebandsection.Theygeneratecomplexsignalsinrealtimeandareequippedwithanarbitrarywaveformgeneratorwith64MsamplememoryforIandQ(�56Mbyte).Thesignalsgener-atedinthedifferentbasebandscanbeadded.Frequencyoffsetoftheindividualsignalsispossible.

Themodern,intuitiveconceptofthe¸SMU�00Aensuresfastandeasyoperation.

� Vector Signal Generator ¸SMU200A

Page 3: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Vector Signal Generator ¸SMU200A 3

Two signal generators in one

Frequencyoptionsfrom100kHzto�.�GHz/3GHz/4GHz/6GHzforthefirstRFpathOptionalsecondRFpathupto�.�GHzor3GHzUptotwocompletebasebandpathsLosslesscombinationofbasebandsignalsinthedigitaldomain(e.g.fortestingmultistandardbasestations)

Outstanding signal quality

I/Qmodulatorwith�00MHzRFband-widthVerylowSSBphasenoiseoftyp.–135dBc(f=1GHz,�0kHzcarrieroffset,1Hzmeasurementbandwidth)Widebandnoiseoftyp.–153dBc(CW,f=1GHz,>5MHzcarrieroff-set,1Hzmeasurementbandwidth)ExcellentACLRoftypically+70dBfor3GPPFDD(testmodel1,64DPCHs)Veryhighlevelrepeatabilityof0.05dBHighoutputpowerupto+19dBm(PEP),overrange+�6dBmHigh-stabilityreferenceoscillatorasstandard

Unrivaled flexibility

Fourcodechannelsinrealtimefor3GPPFDDChangeofmodulationfromslottoslotforGSM/EDGEBasebandgeneratorwithuniversalcoderforrealtimesignalgenerationArbitrarywaveformgeneratorwith64MsamplesforIandQ(�56Mbyte)Arbitrarywaveformgeneratorsup-portedbySimulationSoftware¸WinIQSIM™Optionalfadingsimulatorwithupto40fadingpaths

Intuitive operation

Colordisplaywith800×600pixels(SVGAformat)Intuitiveuserinterfacewithgraphicaldisplayofsignalflow(blockdiagram)Graphicaldisplayofbasebandsignalsthroughbuilt-intransientrecorderContext-sensitivehelpsystem

Ideal for production

Veryshortfrequencysettingtimes(<3ms);only450µsinListmodeElectronicattenuatorupto6GHzMinimumspacerequiredastwocom-pletegeneratorsareaccommodat-edinonecabinetofonlyfourheightunits

Connectivity

Canberemote-controlledviaGPIBandLANUSBconnectorsforkeyboard,mouseandmemorystickUser-selectabletriggerandmarkersignals

Page 4: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

4 Vector Signal Generator ¸SMU200A

Intuitive operation

The¸SMU�00Aisequippedwithamodernandintuitiveuserinterface.ThesignalflowfromthebasebandtotheRFoutputisclearlyshownintheblockdia-gram.Eachblockrepresentsafunction-alunitoftheinstrument.Thegeneratedsignalcanbeseenataglance,includingwhetheritisaffectedbyadditivewhiteGaussiannoiseorotherimpairments.

Therotaryknobplaysacentralrolein¸SMU�00Aoperation.Itallowstheinstrumenttobeoperatedwithonehand.Anytask–whethernavigatingintheblockdiagramormenus,selectingofparametersortogglingbetweenstates–canbeperformedsimplybyturningorpressingtherotaryknob.

Activewindowsareindicatedbyala-beledbuttonintheWinbaratthebot-tomofthescreen.Withthesoftkeybe-low,therespectivewindowcanbequicklybroughttotheforeground.Thisallowsrapidnavigationbetweendiffer-entwindows.Itispossible,forinstance,tosimultaneouslydisplaytwoslotsofaGSM/EDGEsystemandtotogglebe-tweenthem.Windowscanofcourseal-sobeautomaticallyarranged(REARR),hidden(HIDE)orclosed(CLOSE)bymeansofhardkeys.

Block diagram of the ¸SMU200A

Tool tip for permissible frequency setting range

Turn

Click

Rotary knob for navigation in the menus

Softkeys and hardkeys of the ¸SMU200A for windows

management

Page 5: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Vector Signal Generator ¸SMU200A 5

Thebasebandsignalcanbemonitoredinthegraphicsblock.Forinstance,thevectororconstellationdiagram,theI/Qcharacteristicortheoutputspectrumofasignalcanbedisplayed,makingitpossibletocheckwhetherthegenerat-edsignalcorrespondstotherequiredsignal.Thisisofgreathelpparticularlywhencomplexsignalsareproduced.

Anotheroutstandingfeatureofthe¸SMU�00Aisitscontext-sensitiveonlinehelp.Iftheexactfunctionofapa-rameterisnotknown,simplypushingthehelpkeyinstantaneouslydisplaysahelptextwithinformationaboutthese-lectedparameter.Furtherinformationcanbeobtainedthroughnavigationwithabrowser-likesystem.Thehelpsystemalsospecifiestherelevantremote-con-trolcommands.Full-textsearchinginthehelpsystem,whichcontainsthecom-pleteoperatingmanual,comesinhandywhencomplexmeasurementtasksaretobeperformed.Tooltipsareprovidedinaddition.Ifyoupauseonaparameter,thecurrentlypermissiblesettingrangeisdisplayed.

Moreinformationabouttheuserinter-faceathttp://www.smu.rohde-schwarz.com/

Graphics block with I/Q, vector and spectrum diagram

Help system

Page 6: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

6 Vector Signal Generator ¸SMU200A

Outstanding signal quality

Owingtothesophisticatedmultiloopsynthesizerconcept,the¸SMU�00AfeaturesextremelylowSSBphasenoiseandwidebandnoise.Ahigh-stabilityoven-controlledreferenceoscillatorisin-stalledasstandard,whichprovidesex-cellentagingcharacteristicsaswellasminimumtemperaturedrift.Inaddition,thelowphasenoiseoptionfurtheren-hancestheperformancesignificant-ly.The¸SMU�00Aisideal,forin-stance,forLOorVCOsubstitution.

Amplifiersof3GPPbasestationsrequireverygoodadjacentchannelleakageratio(ACLR)performanceinordernottoim-pairtheadjacentchannelsofthetrans-mission.Totestthisfeature,theACLRcharacteristicsofthesignalgeneratormustbebetterthanthoseoftheampli-fier.Presently,multicarrierpowerampli-fiersareincreasinglyused.Inthiscase,notonlyonebutseveralneighboringsig-nalsinthefrequencyrangeareampli-fied.Testingsuchamplifiersplacesevenhigherdemandsonsignalgeneratorca-pabilities.TheoutstandingACLRchar-acteristicsofthe¸SMU�00Amorethanqualifythegeneratorforthistask.

WhenexternalI/Qsignalsareap-plied,the¸SMU�00AfeaturesanRFbandwidthof�00MHz.Iftheinter-nalbasebandisused,anRFbandwidthof80MHzisavailable,whichisidealfortestingmulticarrieramplifiers.The¸SMU�00Aisthuswellpreparedforfuturebroadbandsystems.

–40–50–60–70–80–90–100–110–120–130–140–150–160

SSBphasenoise/dBc(1Hz)

1 10 102 103 104 105 106 107

2,1 GHz

Frequency offset / Hz

100 MHz

850 MHz

5,7 GHz

Typical SSB phase noise at 100 MHz, 850 MHz, 2.1 GHz and 5.7 GHz with internal reference oscillator (without low phase noise option)

A

Ref -9.5 dBm Att 10 dB*

**

*1 RMCLRWR

RBW 30 kHzVBW 300 kHzSWT 2 s

NOR

*

Center 2.16 GHz Span 25.5 MHz2.55 MHz/

SGL

PRN

-90

-80

-70

-60

-50

-40

-30

-20-9.45

Tx Channel W-CDMA 3GPP FWDBandwidth 3.84 MHz Power -6.03 dBmAdjacent ChannelBandwidth 3.84 MHz Lower -70.03 dBSpacing 5 MHz Upper -70.40 dBAlternate ChannelBandwidth 3.84 MHz Lower -72.96 dBSpacing 10 MHz Upper -73.42 dB

-100

Outstanding ACLR characteristics

-100 -80 -60 -40 -20 0 20 40 60 80 100-5

-4

-3

-2

-1

0

1

2

3

4

5

Frequency offset from carrier / MHz

Delta/dB

RF 850 MHzRF 1900 MHzRF 2200 MHz

Frequency response (mode: external wideband I/Q)

Page 7: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Vector Signal Generator ¸SMU200A 7

The¸SMU�00Aoffershighlyac-curateoutputpowerofupto+13dBm(PEP).Awear-and-tear-freeelectronicattenuatorisusedinthefulllevelrange.Withtheaidofthehigh-powerout-putoption,theoutputpowercanbein-creasedto+�6dBm(PEP)intheover-range.

DigitalALCimplementedinthe¸SMU�00Atogetherwithadetectoroperatingatconstanttemperatureen-sureshighlevellinearityandrepeatabili-ty.ALCmaybeonformostkindsofcom-plexsignalscenarios.

30

28

26

24

22

20

18

16

14

12

10

Level/dBm

0 0.5

Frequency / GHz

Available Power, Attenuator Mode Normal (lower trace) and High Power (upper trace)

1.0 1.5 2.0 2.5 3.0

Typical maximum out-put power versus fre-quency (with and with-out high-power output option)

0 1 2 3 4 5 6-0.03

-0.02

-0.01

0

0.01

0.02

0.03

Time/hours

Leveldeviation/dB

Level repeatability (2 GHz, 0 dBm, ALC=ON)

CWInternal baseband I/QExternal wideband I/Q

High level repeatability of the ¸SMU200A

Amplifier test with the ¸SMU200A

Page 8: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

8 Vector Signal Generator ¸SMU200A

Unrivaled flexibility

Thestandardsofthethirdmobileradiogenerationsetconsiderablyhigherde-mandsonsignalgeneratorfunctional-ity.BecauseoftheirgoodRFcharacter-isticsandtheirflexibility,signalgenera-torsaretheinstrumentofchoiceparticu-larlywhenbasestationsaretested.Theuniversalcoderinthebasebandgenera-torofthe¸SMU�00Ahasbeende-signedforeasyimplementationofnewstandards.The¸SMU�00Aisthere-forewellpreparedforpresentandfuturemobileradiostandards.

Inthecaseof3GPPFDD,the¸SMU�00Acangenerateuptofourcodechannelsinrealtime.Uptofourbasestationswith1�8codechannelseachorfourmobilestationscanbesim-ulated.Thisallowsanyconfigurationtobeset,fromreferencemeasurementchannelsinlinewith3GPPTS�5.141orTS�5.101uptocomplexcodechannelscenariosfortrafficsimulationinthemo-bileradionetwork.

Forthecontrolchannels,thetransmitpowercontrol(TPC)fieldoftheindivid-ualslotsofaframecanbereadfromadatalist.ThisallowslongTPCprofilestobegeneratedforpower-levelcontrolintheDUT.Withthisfeature,outputpow-errampingorthemaximumoutputpow-erofamobilephonecanbemeasured,forinstance.TheTPCinformationcanal-sobeusedforpower-levelcontrolintherespectivecodechannelofthesignaltobeoutputbythe¸SMU�00A.Thisallowssimulationofcomplexpowersce-nariosasmayoccurforamobilephoneinmotion.

The¸SMU�00Aiscapableofin-sertingbiterrorsandblockerrorsinthegeneratedsignal.Thisallowstheinter-nalbiterrorratio(BER)andblockerrorratio(BLER)calculationsofabasesta-

Four code channels in realtime with additional background channels

Realtimechannels

The mobile phone changes its output power in compliance with TPC information from the ¸SMU200A

The ¸SMU200A changes the code channel output power on the basis of the TPC field

0 1 1 0 1 0 1 0 1…

Bit error

1 0 1 1…

Block error

0

Information data

CRC attachment

Tail bit attachment

Conv. coding R=1/3

Rate matching

1st interleaving

804

686

686

244 16 8

DATA CRC

244

DTCHCRC16

360

308

308

100 12 8

100 12

100

DCCHCRC12

Tail8Tail8

Transmission

1

Insertion of bit errors and block errors into the output signal

Page 9: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Vector Signal Generator ¸SMU200A 9

tiontobecheckedinlinewithTS�5.141.Thenumberofrequiredbitandblocker-rorscanbesetinthe¸SMU�00A.Becauseofgenerationinrealtime,con-tinuousmeasurementsofBERandBLERcanbecarriedoutwithoutwrap-aroundproblems.

Thereceiverofamobilephonemustofcoursealsofunctionunderrealoperat-ingconditions.Tocheckthis,orthogo-nalbackgroundandinterferingchannelsofabasestationcanbesimulatedinlinewithTS�5.101.Thepowerofthesechannelsisautomaticallyconfiguredsothatthetotaloutputpowerofthebasestationremainsunchanged.ThisallowsmeasurementsofthemaximuminputlevelinlinewithTS�5.101,forinstance.Thebasestationmustalsobetestedun-derrealconditions.Inthiscase,upto64mobilephonescanbeconfiguredinad-ditiontothefouruser-configurableones.The64mobilephonesusedifferentscramblingcodes.

Sincetheuniversalcoderinthe¸SMU�00Aisextremelyflexible,signalsforhigh-speeddownlinkpack-etaccess(HSDPA)aregeneratedwith-outproblems.Testmodel5withallitsversions,asdefinedinTS�5.141ofthe3GPPspecification,isalsosupported.

Thetestcasewizardofthe¸SMU�00Aallowsone-buttonbasestationtesting.Bysimplychoos-ingtherequiredtestcaseasdefinedinTS�5.141,thecompletegeneratorwillbesetupinaccordancewiththespeci-fication.Allspecificparameters,suchasnoiselevel,fadingprofile,andinterfer-ingsignalaresetwithouthavingtolookthemupinthestandarddocument.Theautomaticsetupincludesthewantedsignal,frequencyoffsetandpowerlevelaswellasinterferingsignals,noiseandfadingconditions.Totestbeyondthespecifications,theparameterscanalsobeadjusted.

Additional mobile stations for testing a base station receiver (green: background, red: user)

Display of 3GPP FDD menu and code domain with two HSDPA data channels

Test case wizard: intermodulation characteristics with display of signal setup

Page 10: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

10 Vector Signal Generator ¸SMU200A

Slot 0 1 � 3 4 5 6 7 0 1

Frame

P1

P�P3

P4P5P6P7

Change of modulation and different power levels in each slot for GSM/EDGE

Forreceiverpowermeasurements,the¸SMU�00Ageneratesaccess,con-trolandtrafficchannelsofthevariousradioconfigurationsinthe1×mode.Sincechannelcodingisfullyimplement-edinthe¸SMU�00A,noaddition-albiterrorratiotestersarenecessary.ByevaluatingtheCRCfields,thebasesta-tionisabletoperformtheframeerrorra-tio(FER)measurementspecifiedinthestandarddirectlyonthereceivedsignal.

Intheforwardlinkmode,the¸SMU�00Asupportsatotaloffouruser-selectablebasestationsforeachcar-rierfrequency.Eachsimulatedbasesta-tionprovidesallcontrolchannelsofthestandardanduptoeightindependentlyconfigurabletrafficchannels.Anyradioconfigurationcanbeselectedforthesechannels.Thechannelcodingcanbesetforeachfundamental,supplementalanddedicatedcontrolsubchannelofatrafficchannelinanymannerwithintheparam-etersdefinedbythestandard.Thus,com-plextestscenarioscanbesetupthatfarexceedthemobilestationtestsdefinedinthe3GPP�C.S00011-Bspecification.

The¸SMU�00Asupportsreceivertestsbyprovidingafullychannel-cod-edF-PDCH.TheF-PDCCHs,whichareindispensablefordemodulation,arepro-videdinduplicate.Inadditiontothepacketchannels,allregularcontrolanduserchannelscanalsobeactivated.

WhentheGSM/EDGEoptionisused,eventhemodulationcanbechangedbe-tweenGMSKand8PSKEDGEinreal-timeasmaybethecaseinGSM/EDGEbasestations.Allbursttypesdefinedbythestandardcanbegenerated.Inad-dition,uptoeightdifferentlevelscanbedefinedforthetimeslots.Asepa-ratelevelcanthusbeassignedtoeachslotofaGSMframe.Furthermore,the¸SMU�00Apermitstwoframestobedefined.Theframerepetitionratecanbesetbytheuserasrequired.

CDMA2000® channel table 1)

1) CDMA�000®isaregisteredtrademarkofthe TelecommunicationsIndustryAssociation(TIA-USA).

ThechangefromGMSKto8PSKEDGEmodulationinatimeslotovertimecanthusbesimulated,forinstance.

Page 11: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Vector Signal Generator ¸SMU200A 11

Whenreceiversaretested,itmustbepossibletosimulaterealreceivecon-ditions.Inthe¸SMU�00A,addi-tivewhiteGaussiannoise(AWGN)canbesuperimposedonthewantedsignal.Thesignal-to-noiseratiocanbesetinawiderange.Thus,highlyaccuratesen-sitivitymeasurementscanbeperformedonreceiverswithadefinedS/Nratio,incompliancewith3GPPspecificationsTS�5.141andTS�5.101.

Theinternalarbitrarywaveformgener-ator(ARB)withitslarge56MsamplememoryforIandQ(and4mark-erbitspersample)andaclockrateof100Msample/soffersidealconditionsforgeneratingcomplexsignalscenarios.Duetotheimplementedhardwarere-sampling,loweroversamplingratescanbeusedsothatlessmemoryisrequiredforstoringwaveforms.Thereforelongersequencesarepossible.

Testsystemsoftenswitchbackandforthbetweenvarioustestsignals.Thetimenecessarytoswitchbetweenthesesig-nalscanbeminimizedbycombiningin-dividualwaveformsintoamultisegmentwaveform.ThecompletemultisegmentwaveformisloadedintotheARBmemo-ry,andeachsegmentthenrepresentsaseparatewaveform.Thiseliminatestheloadingtimethatwouldotherwisebenecessarywhenswitchingbetweenseg-ments.

Theinternalarbitrarywaveformgenera-torofthe¸SMU�00AissupportedbySimulationSoftware¸WinIQSIM™.With¸WinIQSIM™,signalscanbeeasilygeneratedforWLANsystemssuchasIEEE80�.11a/b/g,TDMAsystemssuchasGSM/EDGEandevencomplexCDMAsystemssuchasTD-SCDMA.Multicarriersignalscanalsobegenerated.

Formoreinformation,refertothedatasheetforSimulationSoftware¸WinIQSIM™(PD0758.0680).

Constellation diagram of a noisy signal

Simulation Software ¸WinIQSIM™

How the multisegment waveform operates

Waveform 2

Waveform 1

Waveform 3

Resulting waveform in output RAM

Segment 1 Segment 2 Segment 3

Output signal

Segment switching by¸SMU user interface,IEC/IEEE bus,external trigger line

Automatic repetition of partial waveform within segment

Page 12: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

1� Vector Signal Generator ¸SMU200A

Whensignalsaresentfromthetrans-mittertothemobilereceiver,variousfadingeffectsoccur.Thus,multipleprop-agationpathsmaybesuperimposedoneachothereitherconstructivelyorde-structively.Inaddition,themovementofthereceiverrelativetothetrans-mittercreatesafrequencyshift.The¸SMU�00Afadingsimulatormakesiteasytosimulatetheseconditionsinthelab.Thisistheonlywaytooptimizereceiverperformance.

Atotalof40fadingpathsat80MHzbandwidthand10nstimeresolutionareavailableforsimulatingmultipathpropa-gation.Ifhighertimeresolutionisneed-ed(10ps),thebandwidth(30MHzand50MHz)andthenumberoffadingpaths(�4and16)canbemodified.SinceuptotwobasebandgeneratorsandRFpathscanbeinstalledonthe¸SMU�00A,itiseasytosimulatethereceivecondi-tionsofareceiverthathastwoantennas(e.g.aUMTSbasestation).Thiselimi-natestheproblemsusuallyassociatedwithcablingandsynchronizationsincetheentirescenarioiscreatedinasingle¸SMU�00A.

Theuserinterfacewasdesignedforeasyandstraightforwardoperation.Thus,itincludesfadingprofilesforthemostcommonmobileradiostandards(e.g.GSM/EDGE,3GPP,CDMA,TETRA,WLAN).Tohandlespecialtestrequire-ments,thefadingprofilescanalsobeconfiguredasneeded.Thegraphicaldis-playofthefadingpathsprovidesanoverviewofthesituationatalltimes.Itshowsthenumberofpaths,timing,rel-ativepowerandthefadingprofilethatisused.

Rician fading of a squarewave-filtered QPSK signal (change in amplitude and phase)

Simplest setting of the preferred fading

Setup for simulating transmit diversity with fading

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Vector Signal Generator ¸SMU200A 13

The¸SMU�00Asupportsmultipathfadingwiththefollowingprofiles:

StaticpathPureDopplerRayleighRicianConstantphaseLognormalSuzuki

Furthermore,itsupportsscenariosintro-ducedby3GPPsuchasbirth-deathprop-agation(testingofreceiverperformancefordisappearanceandreappearanceofasignal,suchaswhenacallerwalksaroundthecornerofabuildingwhileonthephone)andmovingdelaypropaga-tion(testingofreceiverperformanceforslowchangesindelay).

Afrequencyhoppingtechniquethatre-sumestheprecedingfadingprocessfol-lowingafrequencyhop-backallowsre-alisticsimulationoffrequencyhoppingconditions.Inthiscase,thecalculationoftheprecedingfadingprocessisre-sumedinthebackground.Theprofileiscontinuedasifthefadingatthisfre-quencyhadnotbeeninterrupted.

Demonstration of moving delay fading with ASK modulation: the second path moves relative to the first path

Fading SimulatorSignalpathsFadingpathsRFbandwidthTimeresolution

1 1 1�0 1� 880MHz 30MHz 50MHz10ns 10ps 10ps

Fading Simulator with Fading Simulator Extension

SignalpathsFadingpathsRFbandwidthTimeresolution

1 1 1 � � �40 �4 16 �0 1� 880MHz 30MHz 50MHz 80MHz 30MHz 50MHz10ns 10ps 10ps 10ns 10ps 10ps

Relation between the number of fading paths, bandwidth and time resolution

Profile for frequency f2

Profile for frequency f1

Time

Pow

er

Continued profile for frequency f1

Internal calculation of profile f1

Frequency hopping f

2 to f

1

Internal calculation of profile f

2

Frequency hopping f

1 to f

2

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14 Vector Signal Generator ¸SMU200A

Allthestrengthsofthetwo-pathcon-ceptofthe¸SMU�00Abecomees-peciallyevidentinthefieldofmobilera-dio.Sincethebasebandsectionofthe¸SMU�00Aisfullydigital,thesig-nalsofthetwobasebandgeneratorscanbeeasilyaddedwithoutsynchronizationproblemsandwithoutanexternalcou-pleroradditionalequipmentbeingre-quired.Afrequencyoffsetandtherela-tivepowerofeachsignalcanbeaccu-ratelyset.

Onebasebandgeneratormaybeusedforgeneratingthe3GPPsignalinreal-time.Thesecondbasebandgenera-torproducesarealtimeGSM/EDGEsig-nal.Thesignalscanthenbeaddedinthedigitaldomainwithafrequencyoff-set,ifdesired.Thisallowsmodernmulti-standardbasestationstobetested,forinstance.

Forreceivertestsinmulticarrierbasestationswithcomplexinterferingsig-nals,onebasebandgeneratorcanpro-ducethetestsignaltobeevaluated.Thesecondbasebandgeneratorpro-ducesasuitablemulticarriersignaltobeusedasthebackgroundsignal.Twotransmitantennas(thetransmitdiver-sity)ofabasestationcanalsobesimu-lated.Uptonow,twosignalgeneratorshavebeenrequiredinthiscase,buton-lyoneinstrumentisneededwhenthe¸SMU�00Aisused.

IftheRFsectionisfurthermoreequippedwithtwopaths,anyrequirementcanbemet.Forinstance,thewantedsignalandtheinterferingsignalneededforreceivertestscanbegeneratedwithoneinstru-ment–evenifthesignalsgreatlydifferinpowerandfrequencyoffsetasisthecasewhenout-of-bandblockingmea-surementsaretobeperformed.

Generation of 3GPP and GSM/EDGE signals in realtime

Generation of wanted signal and interfering signal

Adding a realtime signal and a multicarrier signal

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Vector Signal Generator ¸SMU200A 15

An¸SMU�00Aequippedwithfad-ingandnoiseoptionscontainsallcom-ponentsrequiredfortheperformancetestsspecifiedin3GPPTS�5.141.Sinceallcomponentsareintegratedinasingleinstrument,theeffortthatwouldother-wisebenecessaryforcablingandtime-consumingsynchronizationiseliminat-ed.The¸SMU�00A3GPPFDDTestCaseWizardmakesitpossibletosetcomplexscenariosevensuchastheseatthepressofabutton.

Sincesignalpathscanbeswitchedasneeded,evenafterthefadingsimula-tor,complexsignalscenariosthatwerepreviouslyeithernotpossibleorpossibleonlyatgreateffortcannowbeimple-mented.Thismakesitpossible,forex-ample,tosimulateaGSM/EDGEframeinwhichonlyonetimeslotisfadedwhiletheothersremainunchanged.Theap-propriateframesaregeneratedinthebasebandgeneratorsandthenroutedthroughthefadingsimulator.Onlyonebasebandsignalisfadedandthenadd-edtothesignaloftheotherbasebandgenerator.

The¸SMU�00ABBINoptionmakesitpossibletofeedexternalanalogI/Qsig-nalsintothe¸SMU�00Aandthenapplyfading,noiseandimpairmentstothem.Inaddition,theexternalsignalcanbeaddedtotheinternalbasebandsig-nals,thusmakingitpossibletosimulateevenhighlycomplexsignalscenarios.

Generation of a GSM/EDGE frame with faded and unfaded timeslots

Addition of external I/Q signals to internal baseband signals

Generation of a 3GPP signal followed by fading and noise as specified in 3GPP TS 25.141

Page 16: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Connectivity

Front panel

AnexternalkeyboardandamouseormemorystickcanbepluggedintotheUSBconnectors onthefrontpanel.

Twomarkeroutputs thatcanbeusedasrequiredandatriggerinput areavailableinaddition.

Rear panel

Additionalmarkerandtriggerconnec-tors ,aLAN(100BaseT) andaGPIB

interfaceaswellasaUSBslavecon-nector areavailableattherear.Usingtheslaveconnector,the¸SMU�00AcanbedirectlyconnectedtoaPC.Anex-ternalmonitororavideobeamercanbeconnectedtotheVGAconnector .

16 Vector Signal Generator ¸SMU200A

Remote control of the ¸SMU200A via GPIB or LAN

Remote control

The¸SMU�00Aisremote-controlledviaGPIBorLAN.WhenWindowsRe-moteDesktopisused,theinstrumentcanberemote-operatedfromaPC.

Page 17: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Modular design

Future-oriented

Owingtoitsmodulardesign,the¸SMU�00Aisasafeinvestment.Optionscanbeaddedanytime.Thisconceptallowsthe¸SMU�00Atobetailoredtospecificapplications.

Convenient service

“Lowcostofownership”ismorethanjustamotto–itisacomprehensivecon-cept.Thethree-yearcalibrationcycleconsiderablyreducescosts.

Athermalmanagementsystemwithoversizedfanscombinedwithlarge-scaleintegrationensureshighreliabilityevenunderadverseenvironmentalconditions.

Rohde&SchwarzServiceCentersallovertheworldreducetransittimesinthecaseofrepairandensureshortturn-aroundtimes.

Vector Signal Generator ¸SMU200A 17

Synthesizer module of the ¸SMU200A

Internal view of the ¸SMU200A

Page 18: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Specification summary

Frequency

Frequencyrange 100kHzto�.�GHz/3GHz/4GHz/6GHz

Settingtime <3ms

SettingtimeinListmode <450µs

Level

Range –145dBmto+13dBm(PEP,3GHz)

Rangewithhigh-poweroutputoption

–145dBmto+19dBm(PEP,3GHz)

Spectralpurity(atf=1GHz)

NonharmonicsCarrieroffset>10kHzCarrieroffset>850kHz

<–80dBc<–86dBc

SSBphasenoise(�0kHzcarrieroffset,1Hzmea-surementbandwidth) typ.–135dBc

Widebandnoise(carrieroffset>5MHz,1Hzmea-surementbandwidth)

typ.–153dBc(CW)typ.–149dBc(I/Qmodulation)

ACLR

3GPPtestmodel1,64DPCHs typ.70dB

RFmodulationbandwidth

UsingexternalI/Qinputs �00MHz

Usinginternalbasebandsection 80MHz

Supportedmodulationtypes

AM DCto500kHz

Pulse 0kHzto100kHz

ASK 0%to100%

FSK MSK,�FSK,4FSK

PSK BPSK,QPSK,OQPSK,π/�DBPSK,π/4DQPSK,π/8D8PSK,π/4QPSK,8PSK,8PSKEDGE

QAM 16QAM,3�QAM,64QAM,�56QAM,10�4QAM

Supportedstandardsanddigitalsys-tems

GSM/EDGE,3GPPFDD,3GPPTDD,TD-SCDMA,cdmaOne,CDMA�000®,1×EV-DO,IEEE80�.11a,IEEE80�.11b,IEEE80�.11g,TETRA,Bluetooth® �),AWGN,user-definedmulticarrierCW

Interfaces IEEE488.�,LAN(100BaseT),3×USB,1×USBslave,VGA

�) TheBluetooth®wordmarkandlogosareownedbytheBluetoothSIG,Inc.andanyuseof suchmarksbyRohde&Schwarzisunderlicense.

18 Vector Signal Generator ¸SMU200A

Page 19: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Ordering information

Designation Type Order No.Vector Signal Generator1)

includingpowercable,QuickStartGuideandCD-ROM(withoperatingandservicemanual)¸SMU�00A 1141.�005.0�

OptionsRFPathA

100kHzto�.�GHz ¸SMU-B10� 1141.8503.0�

100kHzto3GHz ¸SMU-B103 1141.8603.0�

100kHzto4GHz ¸SMU-B104 1141.8703.0�

100kHzto6GHz ¸SMU-B106 1141.8803.0�

FM/ϕMModulator ¸SMU-B�0 114�.0006.0�

FM/ϕMModulatorandLowPhaseNoise ¸SMU-B�� 1160.5006.0�

OvervoltageProtection ¸SMU-B30 1159.7444.0�

High-PowerOutput ¸SMU-B31 1159.8011.0�

OvervoltageProtectionandHigh-PowerOutput ¸SMU-B3� 1160.0�56.0�

RFPathB

100kHzto�.�GHz ¸SMU-B�0� 1141.9400.0�

100kHzto3GHz ¸SMU-B�03 1141.9500.0�

OvervoltageProtection ¸SMU-B35 1160.0633.0�

High-PowerOutput ¸SMU-B36 1160.1000.0�

OvervoltageProtectionandHigh-PowerOutput ¸SMU-B37 1160.1400.0�

Baseband

BasebandGeneratorwithARB(1�8Msample)andDigitalModulation(realtime) ¸SMU-B9 1161.0766.0�

BasebandGeneratorwithARB(64Msample)andDigitalModulation(realtime) ¸SMU-B10 1141.7007.0�

BasebandGeneratorwithARB(16Msample)andDigitalModulation(realtime) ¸SMU-B11 1159.8411.0�

BasebandMainModule ¸SMU-B13 1141.8003.04

DifferentialI/QOutput ¸SMU-B16 1161.0066.0�

AnalogBasebandInput ¸SMU-B17 114�.�880.0�

Digitalmodulationsystems

DigitalStandardGSM/EDGE ¸SMU-K40 1160.7609.0�

DigitalStandard3GPPFDD ¸SMU-K4� 1160.7909.0�

3GPPEnhancedMS/BSTestsincl.HSDPA ¸SMU-K43 1160.9660.0�

DigitalStandardGPS ¸SMU-K44 1161.0566.0�

3GPPFDDHSUPA ¸SMU-K45 1161.0666.0�

DigitalStandardCDMA�000®incl.1xEV-DV ¸SMU-K46 1160.9876.0�

DigitalStandardIEEE80�.11(a/b/g) ¸SMU-K48 1161.0�66.0�

DigitalStandardIEEE80�.16 ¸SMU-K49 1161.0366.0�

DigitalStandardTD-SCDMA ¸SMU-K50 1161.0966.0�

TD-SCDMAenhancedBS/MSTests ¸SMU-K51 1161.106�.0�

DigitalStandardDVB-H ¸SMU-K5� 1408.7010.0�

MulticarrierCWSignalGeneration ¸SMU-K61 1160.8505.0�

Digitalmodulationsystemsusing¸WinIQSIM�TM�)

DigitalStandardGSM/EDGE ¸SMU-K�40 1408.5518.0�

DigitalStandard3GPPFDD ¸SMU-K�4� 1408.5618.0�

3GPPEnhancedMS/BSTestsincl.HSDPA ¸SMU-K�43 1408.5718.0�

DigitalStandardGPS ¸SMU-K�44 1408.5818.0�

3GPPFDDHSUPA ¸SMU-K�45 1408.5918.0�

DigitalStandardCDMA�000®incl.1xEV-DV ¸SMU-K�46 1408.6014.0�

DigitalStandardIEEE80�.11(a/b/g) ¸SMU-K�48 1408.6114.0�

DigitalStandardIEEE80�.16 ¸SMU-K�49 1408.6�14.0�

DigitalStandardTD-SCDMA ¸SMU-K�50 1408.6314.0�

TD-SCDMAenhancedBS/MSTests ¸SMU-K�51 1408.6414.0�

MulticarrierCWSignalGeneration ¸SMU-K�61 1408.6514.0�

Vector Signal Generator ¸SMU200A 19

Page 20: The art of signal generation - Rohde & SchwarzThe art of signal generation Vector Signal Generator ¸SMU200A The Vector Signal Generator ¸SMU 00A has been designed to meet all requirements

Forspecifications,seePD0758.0197.��andwww.rohde-schwarz.com

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Digitalmodulationsystemsusing¸WinIQSIMTM3)

DigitalStandardIS-95 (with¸WinIQSIMTM) ¸SMU-K11 1160.5335.0�

DigitalStandardCDMA�000® (with¸WinIQSIMTM) ¸SMU-K1� 1160.5658.0�

DigitalStandard3GPPTDD (with¸WinIQSIMTM) ¸SMU-K13 1160.5906.0�

DigitalStandardTD-SCDMA (with¸WinIQSIMTM) ¸SMU-K14 1160.6�0�.0�

User-DefinedOFDMSignals (with¸WinIQSIMTMand¸WinIQOFDM) ¸SMU-K15 1160.640�.0�

DigitalStandard1xEV-DO (with¸WinIQSIMTM) ¸SMU-K17 1160.7009.0�

DigitalStandardIEEE80�.11(a/b/g) (with¸WinIQSIMTM) ¸SMU-K19 1160.8805.0�

DigitalStandard3GPPFDDincl.HSDPA (with¸WinIQSIMTM) ¸SMU-K�0 1160.9460.0�

DigitalmodulationsystemsusingexternalPCsoftware

DigitalStandardBluetooth® ¸SMU-K5 1161.0466.0�

FadingSimulator ¸SMU-B14 1160.1800.0�

FadingSimulatorExtension ¸SMU-B15 1160.��88.0�

AdditiveWhiteGaussianNoise(AWGN) ¸SMU-K6� 1159.8511.0�

DynamicFadingandEnhancedResolution ¸SMU-K71 1160.9�01.0�

Otheroptions

BER/BLERMeasurement ¸SMU-K80 1159.8770.0�

Rearpanelconnectorsfor1stRFpath ¸SMU-B81 1159.9001.0�

Rearpanelconnectorsfor�ndRFpath ¸SMU-B8� 1159.9501.0�

Recommendedextras

Hardcopymanuals(inGerman) 1007.9845.31

Hardcopymanuals(inEnglish,UK) 1007.9845.3�

Hardcopymanuals(inEnglish,USA) 1007.9845.39

19"RackAdapter ¸ZZA-411 1096.3�83.00

AdapterforTelescopicSliders ¸ZZA-T45 1109.3774.00

BNCAdapterforAUXI/OConnector ¸SMU-Z5 1160.4545.0�

KeyboardwithUSBInterface(USassignment) ¸PSL-Z� 1157.6870.04

MousewithUSBInterface,optical ¸PSL-Z10 1157.7060.03

ExternalUSBCD-RWDrive ¸PSP-B6 1134.8�01.��

1) Thebaseunitcanonlybeorderedwithan¸SMU-B10xfrequencyoption.�) ¸WinIQSIM�TMrequiresanexternalPC.3) R&SWinIQSIMrequiresanexternalPC.

Ordering information (continued)

www.rohde-schwarz.comEurope:+4918051�4�4�,[email protected]

USAandCanada:1-888-837-877�,[email protected]:+6565130488,[email protected]

Certified Quality System

ISO 9001DQS REG. NO 1954 QM

Certified Environmental System

ISO 14001DQS REG. NO 1954 UM


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