HP-8754A-Manual 电路图.pdf

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1、 HP Archive This vintage Hewlett Packard document was preserved and distributed by www. Please visit us on the web ! On-line curator: Bob Freeman RadioFans.CN 收音机爱 好者资料库 OPERATINGINFORMATION 8754A NETWORKANALVZER 4MHz-1300MHz HEWLETT11PACKARD RadioFans.CN 收音机爱 好者资料库 HEWLETTi:/;PACKARD OPERATING INFO

2、RMATION 8754A NETWORKANALYZER 4MHz-1300MHz CopyrightHEWLETT-PACKARDCOMPANY1978 1400FOUNTAINGROVEPARKWAY,SANTAROSA,CALIFORNIA95404U.S.A. MANUALPARTNO.08754-90016Printed:May1979 RadioFans.CN 收音机爱 好者资料库 CONTENTS INSTRUMENTDESCRIPTION3 Block Diagram Description Measurement Accessories 8754ASpecification

3、s 8754APerformance Characteristics FRONT PANELINTRODUCTION10 Select Measurement Set CRT Display Set Frequency Sweep Set Signal Levels Measurement Calibration Electrical Length Compensation Read measuredValue TRANSMISSION MEASUREMENTS17 Test Setup Insertion LossorGain Relative Measurements Insertion

4、Phase Simultaneous Measurements REFLECTION MEASUREMENTS21 Test Setup Return Loss Reflection Coefficient Impedance - Using the Smith Chart Simultaneous Measurements POWERLEVELMEASUREMENTS25 S-PARAMETER MEASUREMENTS25 Test Setup Transistor Bias Calibration Measurement Impedance - Using the Smith Chart

5、 USING THE 8750A STORAGE-NORMALIZER29 Installation Alignment Test Digital Storage Normalization Matchingthe8750Atothe8754A USING ANEXTERNALSOURCE33 Narrowband Sweep Using Source WithFMCapabilities Wideband Sweep Using Source With FM Capabilities Narrowband Sweep Using External Swept Source CONTROLS,

6、 INDICATORS,andDISPLAYS SUMMARY36 CRT Display Source Receiver INPUTS/OUTPUTSSUMMARY39 Rear Panel J7, Programming Connector QUICK REFERENCEGUIDE44 PREFACE This operating informationbookletwill helpyoumake transmission and reflection measure- mentswith theHP8754ANetwork Analyzer and its associated tes

7、t sets and accessories. This information is placed in Section 3ofthe8754AOperating and Service Manualas wellasbeing suppliedasa separatebooklettobekeptwiththeinstrument for useby theoperator. This booklet introduces the8754Aand its standard measurement accessories,aswellasits specifications and its

8、operating characteristics. Thenitdescribes basic measurement setup operations, suchassettingfrequency sweep and measurement calibration, performed for all measurements. Specific step-by-step sequences usedtomeasure and interpret responseof thetest device are found intheTransmission Measurements, Ref

9、lection Measurements, Power Level Measurements,andS-Parameter Measurements topics. UsingtheStorage- Normalizer describes setup and useoftheHP8750AStorage-Normalizer. A discussionof Using an External Source describes useofa stabilized source suchastheHP8640Btoim- prove resolution for narrowband measu

10、rements. Summariesattheendofthis section de- scribe the functionsofthe8754Acontrols and indicators andtheinput/outputconnections. 8754ANetworkAnalyzer Display Model 8754A RF Output 4-1300MHz Leveling Loop -IO Detection SweepMarkers CRTDisplay R (Reference)X Magnitude Detector y A.:.;.;.:;. ,1:I:ArRA

11、N5MI$S;N!HF.FLE:CVOfTf.ST:,?o.t:VGH, 11850A/BThree-Way Power Splitter 8502ATransmission/ReflectionTestSet Transmission/Reflection Test Set.The8502A (50n)or 8502B (75n).Transmission/ReflectionTest Set contains a power splitteranddirectional bridge allowing transmission andreflection measurements usin

12、gthesame test setup. It also incorporates a 0to70 dB,10dB stepattenuatorto reducetheincident signal levelwithoutaffecting the signal levelatthe Rinput.The8502B includes one 11852A50nto 75nMinimumLossPadfor matchir:gthe75n Testoutputto the 8754A50n,B input.The11851ARFCable Set consisting ofthree 610m

13、m(24)cables phasematchedto4degrees andone 860mm(34)cableisrecommended for use with the 8502. This cable setorits equivalentisrequiredtoperform phase calibration.Theequal length cables connect the 8754A RF, R;andA inputstothetest setandthelonger cable serves as the transmissionreturntothe Binput. 4 S

14、-Parameter Test Set.Transmission and reflection measurementsontwoportdevices wh.ich require measurementofbothforwardandreverse characteristics can be accomplished usingthe8748AS-Parameter Test Set. This test set containsthenecessary splitter, couplers, and switchestomeasure forward and reverse chara

15、cteristicswithoutdisconnectingthereversingthetest device, a 0to70 dB, 10 dB stepattenuatorto controltheincident signal level, and includesthenecessary equal length signal cables and interface cableto connect the test settothe8754A. Connectthetest device usingthe11857A Test Port Extension Cablesor th

16、e11608A, 11600B,or11602B Transistor Fixtures. Measurement Accessories Several test set,-, signal cable sets,andothermeasurement accessories are designed especially for use with the 8754A. Power Splitter.Forprecision transmission measurements, use the 11850A (50n)or11850B (75n) ThreeWayPower Splitter

17、andthe 11851ARFCable Kit.Oneoutputport provides the reference signaland.theothertwo ports can be usedforindependenttransmissionmeasurements.The 11850B includes three 11852A 50nto75nMinimumLoss Padsfor matching the75n11850Boutputstothe 8754A 50n, R, A,andB inputs. Instrument Description Mode18754AIns

18、trument Description 6dB Coupling -6dB i I I I I _J Port -.-I-2 DC Bias -, I I t I I -6dBIPort 1 Reference Plane Extension I I I I I I I.-.+-A I II - II I I rt I I I I 511/521o-J 8748A L_ RF Input 8748AReference PlaneExtensionCables 8748AS-ParameterTestSet Measurement setup instructions for the 8748A

19、 will referto the rear panel ReferencePlaneExtension cables. These are the rigid loops provided with the 8748Atoequalize the lengthsofthe referenceandtest signal pathstoachieve correct phase calibration. Sixofthese loops are provided. Connect one between the 8748ArearpanelREFERENCE PLANEEXTENSIONcon

20、nectorsdependinguponthe methodusedtoconnect the test devicetothe test ports. The table below lists theirpartnumbersandapplication in order ofincreasing lengtll. HP PartNo.Application Storage-Normalizer.Two storage-normalizer units are offered for use with the 8754A. Both use digital storagetoprovide

21、 crisp, flicker-free CRT displays regardlessofsweep rate, and normalizationtoremovethefrequency response character- isticsofa standard from the measurement. 08748-20020 08748-20021 08478-20022 08478-20023 08478-20024 08748-20025 Test deviceconnecteddirectlytoPort1orPort2(reflectiononly). 60to120mmad

22、apterlengthatPort1orPort2(reflectiononly). 11608ATransistorFixture(transmission/reflection)or, 120to190mmadapterlengthatPort1orPort2(reflectiononly). 190to250mmadapterlengthatPort1orPort2(reflectiononly). 116008or116028TransistorFixturewith11858ATransistor FixtureAdapter(transmission/reflection) Tes

23、t deviceconnectedbetweentwo11857A(610mm,24)Test PortExtensionCables(transmission/reflection) 8750AStorageNormalizer The 8750isan economical waytoprovide digital storage and normalization for rectangular magnitude and phase traces.Allstandard featuresofthe8750 applytooperation withthe8754A. The recta

24、ngular measure- menttraceisdigitizedat250 points/sweep with 500-point y-axis resolution. The8750Adoesnotprocess thepolar trace. The 850IA processing includes averaging and magnification. In addition,the8501A will pro- cess a polar trace. A single internal adjustment (DAC gain)isrequiredtomatchthe850

25、1Ato the8754A. All standard featuresofthe850lA applytooperation with the8754Aexcept dis- playofoperating mode labels. Data can be read from the 8501A memory via the HP-IB. Graphics writtenintothe8501Avia the HP-IB can be displayed by the 8754ACRTbutreduced writing speedofthe 8754A CRT causes dropout

26、s and distortionoffigures. 8501 A Storage Normalizer 5 HP8754ANetworkAnal.yzerSpecifications(Iof2) SPECIFICATIONS Specifications SOURCE FREOUENCY Range: 4 MHzto1300MHz SweepModes:Linearfull sweep(4MHzto1300 MHz)andcalibratedsweepwidthswithvariable startorcenterfrequency. Markers:Internal,crystal-gen

27、eratedharmonicmark- ers;amplitudemarkersforrectangulardisplays, intensitymarkersforpolardisplays. Spacing:I,10,and50MHz Accuracy:iO.OI% DigitalFrequencyReadout:Indicatesfrequencyof variablemarkerinlinearfullsweepmodeandstart orcenterfrequencyincalibratedsweepwidth mode. Resolution:I MHz Accuracy:ilO

28、MHz(20Cto30C).Readout isadjustableforcalibrationtointernal crystalmarkers. OUTPUT Power: Range:Calibrated0to+ I0dBm Accuracy:iO.8dB at50MHz Flatness:iO.5dB SpectralPurity(at+10dBmRFoutputlevel): ResidualFM 1 :7kHzRMS(10kHzbandwidth) bandwidth) Harmonics:-28dBc SpuriousSignals: 4 MHzto500MHz,-65dBc 5

29、00MHzto1300MHz,-50dBc GENERAL Trigger Modes:AUTO(repetitive)andTRIG(single sweeptriggeredbyfront-panelpushbuttonor rear-panelPROGRAMMINGconnector) RFOutputConnector:TypeNFemale 1Applies insweptandCWmodes. 6 Mode18754A RECEIVER INPUT FrequencyRange: 4 MHzto1300MHz InputChannels:ThreeInputs,R,A,andB.T

30、wo testinputs(AandB)with80dBdynamicrange andareferenceinput(R)with40dBdynamic range. Impedance:son.Inputportmatch20dBreturn loss(1.22SWR). MaximumInputLevel: 0dBm Damage Level:+20dBm(50Vdc) Noise Level:83dB ErrorLimits: rii10.01!1!I!-.pB-t-!I100 c1.010 g0.1Q) g 0.1 ,0.01 0.001 o-20-40-60_800.01 Test

31、InputLevel (dB relativetohighest level appliedtoother inputs) MAGNITUDE FrequencyResponse(flatness): Absolute(A,B,R):ildB Ratio(A/R,B/R):iO.3dB DynamicAccuracy(+20Cto+30C): iO.3dBfrom0to-50dBm iO.5dBfrom-50to-60dBm ildBfrom-60to-70dBm i2.5dBfrom-70to-80dBm Model8754A HP8754ANetworkAnalyzerSpecificat

32、ions(2of2) Specificatio.ns RECEIVER(Contd) ReferenceOffset: Range:199dB in 1 dB steps Accuracy:IncludedinDynamicAccuracyabove. DisplayResolution:10,2.5,1,0.25dB/div DisplayAccuracy:2% 0.05 division PHASE FrequencyResponse:2.5 Range:180 DynamicAccuracy: 2 from 0to-50dBm 4 from 0to-70dBm ReferenceOffs

33、et: Range:199 in 1 steps Accuracy:1% DisplayResolution:9045, 10, 2.5 0 ftnajor division DisplayAccuracy:2%0.05division POLAR See MagnitudeandPhase specificationsforFreq- uencyResponse,DynamicAccuracy,andRef- erence Offset. DisplayAccuracy:Actualvalue iswithin2.5mmof displayed value. DISPLAY Measurem

34、entFunctions:CRTdisplayseitherpolar traceortwoindependentrectangulartraces. Channel1:A MagnitudeAbsolute(dBm) R MagnitudeAbsolute(dBm) A/RMagnitudeRatio(dB) B/RMagnitudeRatio(dB) Channel2:B MagnitudeAbsolute(dBm) B/RMagnitudeRatio(dB) B/RPhase (degrees) Polar:A/RMagnitudeRatio(dB)and Phase (degrees)

35、 7 DISPLAY(Contd) ReferencePosition:Referencelines forChannell, Channel2,andPolarCentercan beindepen- dentlysettoanypositionontheCRTfor calibration.Displayresolutionexpandsabout theReferencePositionline. Graticulesize: Rectangular(cartesian):100mm(3.94in.) hori- zontalby80nlm(3.15in.) vertical. Pola

36、r:80mm(3.15in.)indiameter BothgraticulesinternaltoCRT SmithChartOverlays: Viewing:0.2expanded,0.1expanded,com- pressed2.0,regular Photographic:0.2expanded,0.1expanded, compressed,2.0,regular Phosphor:P39 GENERAL Magnitude/PhaseOutput:-10mY/degreeand -100mY/dBatBNC femaleconnectormiJti- plexedbyTTLle

37、velorcontactclosureatpin ofPROGRAMMINGconnectorfor usewith externaldigitalvoltmeter. Accuracy: Magnitude:See MagnitudeDynamicAccuracyspecifi- cation. Phase:1.5%(0to170o),2%(170to1800). Environmental: Temperature: Operating:0Cto+550Cexceptwherenoted Storage:-40Cto+75C Power:Selectionof100,120,220,and

38、240Vac +5%,-10%;48to66 Hz;200VAmaximum Dimensions:133mmx425mmx 505mm (5.25 in. x 16.75 in. x 19.875 in.) Weight:Net,17.7kg(39lb); Shipping:20kg(44lb) HP8754APerformance Characteristics(1of2) RECEIVER -80 1300 Model 8754A 1000500 Frequency(MHz) RECEIVER (Contd) o Specification . 11PC I o 4 Frequency

39、Response (Flatness): Ratio(AIR, B/R): 2.5-.-.-.-.-.- Reference Offset: Accuracy: TypicallylessthanO.l%ofvalue. VernierRange:Typically80dBofvariable offsetusedforcalibrationofratiomea- surements. Error Resulting fromChangeinHarmonic Number: Ratio (A/R and B/R): Typically0.05dB Absolute (A,B,andR):Typ

40、ically0.2dB Absolute Power Measurements(A,B,and R): CalibratedindBm; typically0.5.-+-+-Speciication 0.3i-1II!III1-.-L -20-40 InputLevel(dBm) 0.1dB 0.2dB 0.3dB 8 13001000 500 Frequency(MHz) .SOURCE ISpecification I TVPical I I l o 4 Sweep Time: Approximately10msto500msinFAST mode Approximately1secto5

41、0secinSLOWmode Frequency Response (flatness): Absolute (A,B): Impedance:son.Source match typicallylessthan 1.4SWR(16dBreturn loss). Power Range:.Uncalibrated to typically+13dBm Spectral Purity (at +10 d8m): Harmonics: Typically-35dBc Spurious Signals: 4to500MHz:Typically-75dBc 500to1300MHz:Typically

42、-60dBc 1dB 0.5dB SweepWidthAccuracy: 500to1000MHz:Typically2% 50to200MHz:Typically5% 1to20MHz:Typically8% Stability: Temperature: Typically400kHz/oC Time: Typically100kHz/hour MAGNITUDECHARACTERISTICS GENERAL CHARACTERISTICS FREOUENCYCHARACTERISTICS OUTPUTCHARACTERISTICS Specifications Model8754ASpe

43、cifications HP8754APer!orlnance Characteristics(1of2) RECEIVER(Contd)GENERALCHARACTERISTICS(Contd) FrequencyResponse: DISPLAY: GENERALCHARACTERISTICS PHASECHARACTERISTICS POLARCHARACTERISTICS ElectricalLengthAdjustmentRange: Typically160mm,resultinginan80-mITl adjustmenttothereference plane in arefl

44、ection measurement. X-YRecorder/ExternalCRTOutput: Horizontal:0.1V/Div.(0to1V). Vertical:O.1V/Div.(0.4full scale). Penlift/Blanking:+5VBlankingandPenlift-5V intensifies crystal 111arkers. Connectors:BNC female. ExternalMarkerInput:typically-13dBmRFsignal intotheExternalMarkerInputwillproducean ampli

45、tude(rectilinear)orintensity(polar)marker onthetraceatthefrequencyoftheRFsignal. BNCfe111aleconnector,50n. ProbePower:+15Vdcand-12.6Vdc,for usewith 10855APreanlpor1121AACProbe.Twoprobe powerjacksare available. Storage-NormalizerInterfaces:directlycompatible withboththeHP8750AStorage-Normalizerand th

46、eHP8501AStorage-Normalizer. All 8501 A featuresexceptCRTlabelsandgraphics are avail- ablewhenthe8501 Aisused inconjunctionwith the8754A. ProgrammingConnector: Function:25 pinAmphenolconnector(withnlat- ingconnector).Outputsincludenlagnitude/ phaseandsweepoutputsandinputsdescribed above as well asmea

47、surementmodeselection byTTLlevelsorcontactclosures. WarmUp:One-halfhourisrequiredfortemperature tostabilize. 13001000500 Frequency(MHz) I. ISpecificatIOn tTvp;cal- I I 4 o VideoFilter:Typically100Hz(10kHzwithout filter) ReferenceOffsetRange:Vernierprovidestypically 20ofvariableoffsetusedforphasecali

48、bration. ElectricalLengthAdjustmentRange:Typically 160mm. PhaseErrorResultingfromChangeinHarmonic Numbe:Typically0.5. ExternalSweepInput:0to+10Vnominal.BNC femaleconnectorusedtosweepCRTdisplaywhen receiver is usedwithanexternallysweptsource ortoremotelyprogramthefrequencyofan internalRFsourcefromane

49、xternaldigital-to- analogconverter. SweepOutput:-5Vto+5Vnominal,BNC female connector,usedtofrequencymodulate(sweep) externalgenerator. 9 For those operators who are familiar with the 8754A, the Quick Reference Guideon44and 45 may be sufficient. Model8754A Frequency-. 1 dB dBm deg FRONT PANEL INTRODUCTION A=power levelatAinput(dBm) B=power levelatBinput(dBm) R=power levelatRinput(dBm) (Risselected when Ch