Modulated wideband communications signals require wide-bandwidth signal analysis that goes beyond the capabilities of traditional spectrum analyzer-based signal acquisition. The VSA80000A ultra-wideband (UWB) vector signal analyzer (VSA) combines the performance of Agilent’s Infiniium real-time oscilloscopes and 89601A vector signal analysis software to deliver precise, accurate measurements and analysis for signal bandwidths up to 13 GHz. The software is installed and runs directly on the oscilloscope’s internal PC, and analysis results are displayed on the oscilloscope display. The VSA80000A allows you to run key compliance-based tests, along with a host of troubleshooting and debugging measurements. VSA80000A Ultra-Wideband Vector Signal Analyzer Data Sheet Wideband vector signal analysis and demodulation tools – for bandwidths up to 13 GHz Applications: • Certified Wireless USB • Wireless LAN • Radar • Satellite communications • Ultra-Wideband designs
Transcript
Modulated widebandcommunications signals requirewide-bandwidth signal analysisthat goes beyond the capabilitiesof traditional spectrumanalyzer-based signal acquisition.The VSA80000A ultra-wideband(UWB) vector signal analyzer(VSA) combines the performanceof Agilent’s Infiniium real-timeoscilloscopes and 89601A vectorsignal analysis software to deliver
precise, accurate measurementsand analysis for signal bandwidthsup to 13 GHz. The software isinstalled and runs directly on theoscilloscope’s internal PC, andanalysis results are displayed on the oscilloscope display. TheVSA80000A allows you to run keycompliance-based tests, alongwith a host of troubleshootingand debugging measurements.
VSA80000A Ultra-WidebandVector Signal Analyzer
Data Sheet
Wideband vector signal analysis and demodulationtools – for bandwidths up to 13 GHz
Applications:
• Certified Wireless USB
• Wireless LAN
• Radar
• Satellite communications
• Ultra-Wideband designs
2
The VSA80000A gives you theability to:
• Make measurements onWiMedia-based multi-bandOFDM ultra-wideband PHYlayer signals, such as those in Certified Wireless USB
• Capture up to 13 GHzbandwidth in a singleacquisition
• Measure constellationdiagrams, carrier offset, andfrequency error using flexibledemodulation
• Make error vector magnitude(EVM) measurements
• Gain rapid insight intocomplex signal behavior usingdisplay formats includingspectrogram, phase vs. time,and frequency vs. time
• Select specific portion ofsignals for signal analysis usingtime gating
• Protect your investment withthe upgrade program for the2-GHz and higher models to up to 13 GHz bandwidth
The Agilent 89600 vector signal analysis software is theindustry’s premier tool fordeveloping and troubleshootingnew and emerging technologieslike ultra-wideband technology.Its rich tool set of flexible andpowerful measurements anddisplays includes advanceddemodulation measurements.Extensive vector features liketime-gating, spectrogramdisplays, built-in ACPR and OBW capabilities, and more,make it well-equipped for themost demanding R&D tasks. ItsPC-based architecture allows for quick and easy updates asstandards change. And its abilityto acquire and analyze signalswith a narrowband spectrumanalyzer or widebandoscilloscope makes it invaluablewhen you're dealing withmodulated signals.
The Infiniium real-timeoscilloscopes let you capture thecomplete UWB burst all at once –
up to 13 GHz. The VSA80000A1-GHz-bandwidth model offers4 gigasample/second (GSa/s) datarate, 128 Mpts memory length(32 ms), and four analogchannels. The VSA80000A 2- to13-GHz-bandwidth models offer40 GSa/s data rate, 64 Mptsmemory length (50 µs), fouranalog channels, and the lowestnoise floor of any high-frequencyoscilloscope available. Bothoscilloscope series offerspurious-free dynamic rangegreater than 40 dB. Use theoscilloscope to make coaxialmeasurements, or use theindustry-leading InfiniiMaxprobing system for activedifferential measurements to13 GHz in multiple formats.
You can now take advantage ofAgilent’s unparalleled experienceand sustained leadership insignal analysis, combined withAgilent’s industry-leading,high-performance, real-timedigitizing oscilloscopes.
VSA80000A overview
3
MB-OFDM ultra-wideband modulation analysis
Troubleshoot your WiMedia-basedmulti-band OFDM ultra-widebandPHY-layer signals, such as thosein Certified Wireless USB, withthe industry’s most complete setof easy-to-use measurement tools.The VSA80000A ultra-widebandvector signal analyzer, whenordered with the 89601A OptionBHB MB-OFDM ultra-widebandmodulation analysis capability,provides an unparalleled viewinto your PHY-layer signals.
• Supports all time frequencycodes (TFC1 through TFC10),including FFI (non-hopped),TFI and TFI2 (hopped) modes
• Capture the complete UWBburst all at once – up to 13 GHz
• Measure EVM, CCDF, CPE,frequency error, I/O offset,PDF, and more
Support for all time frequencycodes (TFC1 through TFC10),including FFI (non-hopped), TFIand TFI2 (hopped) modes, allowsyou to analyze a wide range of formats, including QPSKmodulation (used for data ratesfrom 53.3 Mb/s to 200 Mb/s), andDCM (at data rates from 200 Mb/sto 480 Mb/s), using burst orstandard preamble types. Inaddition, you can manually turn off/on frequency hoppinganalysis. In the off mode, thesynchronization pattern of theTFC selected will be used, but thesoftware assumes that the signaloccupies only one band. Thismode of operation is especially
useful when you are bringing upand testing TFC 1-4.
You can see low-, mid-, andhigh-band error vector spectrumand IQ measurement time forhopped signals as well ascomposite traces for both of these types of results. Thesemeasurements can help youtroubleshoot errors down to the individual band, carrier, or symbol, for in-depth erroranalysis. A band error summaryprovides EVM, CPE, frequencyerror and IQ offset for each bandindividually, while the compositeerror summary provides overallerror measurements.
Figure 1. The MB-OFDM ultra-wideband modulation analysisoption offers detailed error analysis down to the individual carrier(upper right), individual symbol (lower left), and an overall viewof composite errors (lower right).
Besides specialized UWBmeasurements, the standardvector measurements anddisplays can provide insight intothe behavior of your signals. Forinstance, the spectrogram displayprovides a good visual tool forproviding a wider perspective ofyour signal over time, particularlyfor hopping signals. You can usethe time gating markers to easilyfocus in on a selected portion ofyour signal, such as the preamble,or any other area that mightrequire closer inspection.
Instantaneous views of time andspectrum are enhanced with a spectrogram display. Thisprovides a longer-term view of any desired data like thespectrum with CCDF, givingimportant statistical informationabout the behavior of yourcomponent or system over time.This capability is useful indetermining or confirmingsystem margins.
The VSA80000A allows you tocapture the complete UWB burstall at once – up to 13 GHz. Withthe 2 GHz and higher models havea unique scalability – purchasethe acquisition bandwidth youneed today with the ability toupgrade to as much as 13 GHz inthe future. So you can start withthe lower UWB bands (up to bandID 5), using the 6-GHz modeltoday. Later, you can easilyupgrade the hardware to 12 GHzbandwidth, providing coverage ofall band IDs (1 through 14.)
Figure 2. Use the powerful ACP calculation markers and limitlines on the packet spectrum displays to perform importantspectral measurements.
Figure 3. The 89601A VSA software makes many usefulmeasurements, especially for characterizing components.Instantaneous views of time and spectrum (left-hand displays)are enhanced with a spectrogram display (lower right).
5
Flexible vector modulation analysis for radar and satellite communications
The VSA80000A UWB VSAprovides flexible tools foranalyzing and demodulating even the most advanced digitalmodulation formats for radar,satellite communications, and secure communications.Measurements are made onsignals in the time and frequencydomains using either thebaseband or IF zoom mode. Inbaseband mode, the analysisfrequency range is from 0 Hz tothe stop frequency. In IF zoommode, the analysis frequencyrange is defined by centerfrequency and span. There is alsoan I+jQ mode for analyzing twobaseband quadrature channels.Results for any mode can bedisplayed as magnitude or phase,in I/Q and several other formats.
• Capture up to 13 GHzbandwidth in a singleacquisition
• Measure pulsed, burst, orcontinuous signals
• Analyze modulation formatssuch as FSK, GFSK, MSK, BPSK,QA, APSK, VSB, and more
• Measure constellationdiagrams, carrier offset, andfrequency error using flexibledemodulation
Modulation quality measurementsin the form of error vectormagnitude (EVM) can be made ondigital wireless communicationssignals with bandwidths ofhundreds of MHz. In addition,powerful diagnosis capabilitiesallow you to determine the exact
impairments that cause a digitallymodulated signal to fail qualitystandards. A choice of 24 over 25digital demodulators, more than 8 filters, and 25 instrumentpresets puts all this power at your fingertips.
Figure 4. Modulation analysis of a QPSK signal in four differentviews – volts vs. time (upper left), I/Q trajectory (upper right),signal spectrum (lower left), and error analysis (lower right)
Figure 5. QPSK error vector magnitude (EVM) constellationdiagram showing IQ gain imbalance
6
Flexible vector modulation analysis for radar and satellite communications(continued)
With VSA80000A, you canmeasure phase linearity,frequency linearity, and otherparameters of chirped radarsignals easily (see Figure 6). Ormeasure the frequency behaviorof the radar signal over time.
Understand the characteristics ofyour transmit channel, like theRF path delay between a pair ofantennas (see Figure 7). Using asignal generator to provide thesame stimulus to both inputchannels of the VSA80000A, the only difference observed atthe receiver end would be thephysical channels. With an RFpower splitter, the signalgenerator output goes to thetransmit antenna as well as the channel one input of theVSA80000A. The generator is setto produce a random noise signal,band limited to 15 MHz. A secondreceive antenna is connected tothe channel two input of theVSA80000A. With two antennasseparated by 2 meters and a large metal object positioned to partially block line-of-sitetransmission, we can analyze thesignal spectrum.
The spectrum of the signalcoming from the receive antennaclearly shows a spectral notchresulting from multipath in the RF channel. The frequencyresponse result, computed usingdata from both measurementchannels, can be interpreted inthis measurement as the channelresponse. The frequency responseis a complex function and isdisplayed in the upper right gridin Figure 6 in log-magnitude
Figure 6. Measure phase linearity, frequency linearity, and otherparameters of chirped radar signals easily.
Figure 7. Measuring the difference in delay in RF multipathsignals – TX reference spectrum (upper left), RX antennaspectrum (lower left), frequency response of antenna (upperright), and cross correlation (lower right)
coordinates. Other coordinates,such as phase or group delay, mayalso be selected. The crosscorrelation between the timewaveforms on each measurementchannel shows the impulse
response and delay spread of thechannel. Time resolution in thecross-correlation result is afunction of both the signalbandwidth, and the instrumentspan selected.
7
Ordering information
The VSA80000A ultra-widebandVSA is based on an Infiniium8000 Series or 80000B SeriesDSOs with the 89601A vectorsignal analyzer node-lockedsoftware installed and running onthe oscilloscope’s internalWindows® XP-based PC. The89601A VSA software alsoincludes 1 year of softwareupdate subscription service.
To configure your VSA80000A,order the following:
• Select the VSA80000Aultra-wideband vector signalanalyzer
• Select one of the oscilloscopesin Table 1
• Select any of the oscilloscopeoptions for additionalcapability. For 8000 Seriesoscilloscopes (see Table 2),Option 640 memory is requiredand is not modifiable. For80000B Series DSOs (seeTable 3), Option 001 memory isrequired and is not modifiable.
• Select any of the 89601A VSAsoftware options for additionalcapability (see Table 4). Option 200 basic VSA software,Option 300 hardwareconnectivity, Option AYAflexible modulation analysis,and Option 012 free 12-monthsoftware update subscriptionservice are required and arenot modifiable. Note that some89601A VSA options may addmeasurement and/or analysiscapabilities that are bestperformed by a spectrumanalyzer.
For example, to configure a 1-GHz system for radar orientedmeasurements, a minimalconfiguration would be:
• VSA80000A ultra-widebandvector signal analyzer
• DSO8104A Option 640 1-GHzoscilloscope
• 89601A VSA software withOptions 200, 300, AYA and 012
To configure a 6-GHz system forCertified Wireless USB-orientedmeasurements, a minimalconfiguration would be:
• VSA80000A ultra-widebandvector signal analyzer
• DSO80604B Option 001 6-GHzoscilloscope
• 89601A VSA software withOptions 200, 300, AYA, BHBand 012
Refer to the Infiniium 8000 SeriesOscilloscopes Data Sheet or theInfiniium DSO80000B SeriesOscilloscopes Data Sheet forcomplete specifications andinformation on probes andoptions. Refer to the 89601A VSAsoftware data sheet for moreinformation on the VSA softwareand its options.
8
Ordering information (continued)
Oscilloscope Options Analysis Maximum Memory depth Maximum model included bandwidth sampling rate Channels (samples) recording length
DSO8104A Option 640 0 to 1.0 GHz 4 GSa/s 4 128 M at 4 GSa/s, 32 ms at 128M, 64M memory 64 M at 2 GSa/s 16 ms at 64M
MSO8104A Option 640 0 to 1.0 GHz 4 GSa/s 4 analog + 128 M at 4 GSa/s, 32 ms at 128M, 64M memory 16 digital 64 M at 2 GSa/s 16 ms at 64M
DSO80204B Option 001 0 to 2.0 GHz 40 GSa/s 4 2 M at 40 GSa/s, 48 µs at 512K, 64M memory 1 M at 20 GSa/s 200 µs at 64M
DSO80304B Option 001 0 to 3.0 GHz 40 GSa/s 4 2 M at 40 GSa/s, 48 µs at 512K, 64M memory 1 M at 20 GSa/s 200 µs at 64M
DSO80404B Option 001 0 to 4.0 GHz 40 GSa/s 4 2 M at 40 GSa/s, 24 µs at 512K, 64M memory 1 M at 20 GSa/s 100 µs at 64M
DSO80604B Option 001 0 to 6.0 GHz 40 GSa/s 4 2 M at 40 GSa/s, 24 µs at 512K, 64M memory 1 M at 20 GSa/s 100 µs at 64M
DSO80804B Option 001 0 to 8.0 GHz 40 GSa/s 4 2 M at 40 GSa/s, 12 µs at 512K, 64M memory 1 M at 20 GSa/s 50 µs at 64M
DSO81004B Option 001 0 to 10.0 GHz 40 GSa/s 4 2 M at 40 GSa/s, 12 µs at 512K, 64M memory 1 M at 20 GSa/s 50 µs at 64M
DSO81204B Option 001 0 to 12.0 GHz 40 GSa/s 4 2 M at 40 GSa/s, 12 µs at 512K, 64M memory 1 M at 20 GSa/s 50 µs at 64M
DSO81304B Option 001 0 to 13.0 GHz 40 GSa/s 4 2 M at 40 GSa/s, 12 µs at 512K, 64M memory 1 M at 20 GSa/s 50 µs at 64M
89601A B7N 3G modulation analysis bundle See note 1(includes Options B7T, B7U, B7W, and B7X)
89601A B7T cdma2000/1xEV-DV modulation analysis See note 1
89601A B7U W-CDMA/HSDPA modulation analysis See note 1
89601A B7W 1xEV-DO modulation analysis See note 1
89601A B7X TD-SCDMA modulation analysis See note 1
89601A B7R WLAN modulation analysis See note 1
89601A B7Z IEEE 802.11n MIMO modulation analysis See note 1
89601A B7Y IEEE 802.16 OFDMA modulation analysis See note 1
89601A B7S IEEE 802.16-2004 OFDM modulation analysis See note 1
89601A BHA TEDS modulation and test See note 1
Table 4. 89601A VSA software options
Note 1: These 89601A VSA options add measurement and/or analysis capabilities that may be best performed by a spectrum analyzer.
11
Product upgrades
Additional information on theVSA80000A can found at:www.agilent.com/find/vsa80000a
If you wish to upgrade yourInfiniium 8000 Series oscilloscopein the future by adding options,please consult your local Agilentsales representative for orderinginformation. Learn more at:www.agilent.com/find/mso8000
If you wish to upgrade yourInfiniium DSO80000B Seriesoscilloscope in the future byadding options, please consultyour local Agilent salesrepresentative for orderinginformation. The After-Burner IIUpgrade Program is available that allows you to upgrade yourInfiniium DSO80000B Seriesoscilloscope to a higher bandwidthmodel, protecting your valuableInfiniium oscilloscope andprobing system investment overthe long term. Learn more at:www.agilent.com/find/dso80000b
To upgrade the 89601A vectorsignal analyzer node-lockedsoftware in the future by addingoptions, consult your localAgilent sale representative forordering information and thebenefits of the 89601AS softwareupdate subscription service.Learn more at:www.agilent.com/find/89600
Related literature
Publication title Publication type Publication number
Infiniium 8000 Series Oscilloscopes Data sheet 5989-4271EN
Infiniium DSO80000B Series Oscilloscopes and Data sheet 5989-4604ENInfiniiMax Probes
Agilent 89600 Series Vector Signal Analyzer Data sheet 5989-1786ENSoftware
Agilent 89600 Series Vector Signal Analysis Technical overview 5989-1679ENSoftware 89601A/89601AN/ 89601N12
Agilent Infiniium Oscilloscopes Performance Application note 5988-4096ENGuide Using 89601A Vector Signal Analyzer Software
Agilent Technologies Solutions for Application note 5989-5280ENMB-OFDM Ultra-Wideband
Agilent WLAN and Baseband Transmitter Data sheet 5989-0327ENAnalysis Using Agilent Infiniium Oscilloscopes and 89600 Software
www.agilent.com/find/open
Agilent Open simplifies the process of
connecting and programming test systems
to help engineers design, validate and
manufacture electronic products. Agilent
offers open connectivity for a broad range
of system-ready instruments, open industry
software, PC-standard I/O and global
support, which are combined to more easily
integrate test system development.
Windows® is a U.S. registered trademark ofMicrosoft Corporation.
www.agilent.com
For more information on Agilent
Technologies’ products, applications
or services, please contact your local
Agilent office. The complete list is
available at:
www.agilent.com/find/contactus
Phone or Fax
United States:(tel) 800 829 4444(fax) 800 829 4433
