Anritsu ME7840A Manual de usuario Pagina 1

MODELME7840APOWER AMPLIFIER TEST SYSTEMOPERATION ANDMAINTENANCE MANUAL490 JARVIS DRIVE - MORGAN HILL, CA 95037-2809P/N: 10410-00225REVISION: APRINTED:

RETURNRETURNStep 5. Press Display key and select:DISPLAY MODESINGLE CHANNELRETURNStep 6. Press Ch 4 key and then Display key.Step 7. Select:GRAPH TYPE

Step 6. Connect SC5237 6 dB Offset Termination to Test Port 1ofMS4782 Test Set. Record the measured value in Table 6-1and verify the measured S11value

6-6 SYSTEM DYNAMICRANGEThis test verifies the PATS system dynamic range.Test Procedure:Step 1. Press Default key then 0 key of MS462XC to reset the sy

PERFORM CAL: 2 PORTCAL METHOD: STANDARDLINE TYPE: COAXIALSELECT CALIBRATION TYPE: TRANSMISSIONFREQUENCY RESPONSEPATH: FORWARD PATH (S21)USE OF ISOLATI

6-7 RECEIVER DISPLAYLINEARITYThis test verifies the magnitude display linearity of the receiver.Setup:Step 1. Setup the equipment as shown above.Step

Step 9. Toggle C.W. MODE OFF soft key to C.W. MODE ON.Step 10. Change C.W. Frequency to 1 GHz.Step 11. Press Config key and select:DATA POINTSPOINTS D

Step 25. Press Power key and select SOURCE 1 SETUP.Step 26. Set PORT 1 ATTN to 10 dB. Record the Power Meter Readoutand the Marker 1 Readout to the ta

Chapter 7Preamplifier Operations7-1 INTRODUCTION This chapter describes the use of external preamplifiers to boost signalpower at the input of an test

an approximate source power (at the Scorpion Port 1, Port 3, or both).For tests involving power sweep, the MS7840A enables a linear powercalibration o

PREAMPLIFIER OPERATIONS USE OF EXTERNAL PREAMPLIFIERSME7840A OMM 7-3AUTPOWERMETEROPTIONALSPECTRUMANALYZERSYSTEMCONTROLLER(PC)B2RF1 B1A1 A2STEPATTENUAT

Figure 1-1. Model ME7840A Power Amplifier Test System (PATS)

USE OF EXTERNAL PREAMPLIFIERS PREAMPLIFIER OPERATIONS7-4 ME 7840A OMMAUTPOWERMETEROPTIONALSPECTRUMANALYZERSYSTEMCONTROLLER(PC)B2RF1 B1A1 A2POWERSUPPLY

Appendix ACalibration SpecificationFilesA-1 INTRODUCTION This appendix describes the Calibration Specification Files that are usedto specify calibrati

TECHNICAL DETAILS CAL SPECIFICATION FILESA-2 ME 7840A OMMI GENERAL1. General Structure of file:2. General syntax:a. Comma separates all fields.b. Spac

CAL SPECIFICATION FILES TECHNICAL DETAILSME7840A OMM A-3k. In each calibration specification/section, use the following structure:3. Header:4. “Type”

A-4 ME 7840A OMMTECHNICAL DETAILS CAL SPECIFICATION FILESII CALIBRATION SPECIFICATIONS, TYPES1. pow (Power Level) Equipment Required: Power meter conn

CAL SPECIFICATION FILES TECHNICAL DETAILSME7840A OMM A-5Detail Section KeywordsCAL, 1 First calibrationname, level Name of *.cal file to save when cal

TECHNICAL DETAILS CAL SPECIFICATION FILESA-6 ME 7840A OMM2. sp and Hot S22(S Parameters & Hot S22)Header Section Keywords:ncal Number of calibrati

CAL SPECIFICATION FILES TECHNICAL DETAILSME7840A OMM A-7<pow2> For Hot S22only. Source 2 power setting.f1 Start frequency in MHz for global cali

TECHNICAL DETAILS CAL SPECIFICATION FILESA-8 ME 7840A OMM3. powsweep (Power Sweep - IMD mode or 2-tone mode):Header Section Keywords:ncal Number of ca

CAL SPECIFICATION FILES TECHNICAL DETAILSME7840A OMM A-94. harm (Harmonics):Header Section Keywords:ncal Number of calibration sequences of this type

Chapter 1General Information1-1 SCOPE OF THISMANUALThis manual provides operating and maintenance information for theME7840A Power Amplifier Test Syst

TECHNICAL DETAILS CAL SPECIFICATION FILESA-10 ME 7840A OMM5. imd (Imodulation Distortion):Header Section Keywords:ncal Number of calibration sequences

A-5 POWER LEVE.TXT The Power Level.txt file is shown in Figure A-1A-6 CAL FILESSETUP.TXTThe Cal Files Setup.txt file is shown in Figure A-2.CAL SPECIF

CAL FILES SETUP.TXT CAL SPECIFICATION FILESA-12 ME 7840A OMMndut,1, //Number of DUTstype,powsweeptype,harmtype,imdPOWSWEEP_STARTncal,1, //Number of Po

A-7 HOT S22.TXT The HotS22.txt file is shown in Figure A-3.CAL SPECIFICATION FILES HOT S22.TXTME7840A OMM A-13ndut,1, //Number of DUTstype,sp, //S Par

A-8 S-PARAMETERS. TXT The S-Parameters.txt file is shown in Figure A-4.S-PARAMETERS. TXT CAL SPECIFICATION FILESA-14 ME 7840A OMMndut,1, //Number of D

Index!Cal Files Setup Calibration Specification File . A-12AADAPTIVE P STOP ...1-9CCAL FILE SETUP...4-15 - 19CAL FILES SETUP.T

RETURN LOSS CONFIDENCE TEST ...6-3-5SSCOPE OF THIS MANUAL...1-1SERIAL NUMBER ...1-2SERVICE CENTERS...2-8-9Single Fre

1-4 CONVENTIONS Throughout this manual, the ME7840A Power Amplifier System may bereferenced as PATS or ME7840A; the MS462XC may be referenced asScorpi

GENERAL INFORMATION HARDWARE DESCRIPTIONME7840A OMM 1-3AUTPOWERMETEROPTIONALSPECTRUMANALYZERSYSTEMCONTROLLER(PC)RF1STEPATTENUATOR70dB, 10dB/stepPOWERS

HARDWARE DESCRIPTION GENERAL INFORMATION1-4 ME 7840A OMMAUTPOWERMETEROPTIONALSPECTRUMANALYZERSYSTEMCONTROLLER(PC)RF1a1a2b1b2STEPATTENUATOR70dB, 10dB/s

1-9 SYSTEMDESCRIPTIONBrief descriptions of the DRA Scorpion (MS462XC) and MS4782X TestSet are given below.DRA Scorpion The Scorpion Direct Receiver Ac

MS4782X Test Set The Series MS4782X Test Set contains a Wilkinson type combiner thatcombines the two RF signals from Ports 1 and 3 (RF1 & RF3) of

qBandwidth: Should be sufficiently wide to cover the frequency bandof the AUT.qIsolation: Should be no less than (Po-27 dB), where Pois thepower outpu

SYSTEM DESCRIPTION GENERAL INFORMATION1-8 ME 7840A OMMNoiseInNoise+28VNO OPERATOR SERVICE-ABLE PARTS INSIDE.REFER SERVICING TOQUALIFIED PERSONNEL.WARN

WARRANTYThe ANRITSU product(s) listed on the title page is (are) warranted against defects in materials andworkmanship for three years from the date o

S22) are not desired, then a circulator is not required. Instead, a throughline should be connected between connectors C1 and C2 (Figure 1-5). TheMS47

The functions of the Test Executive, if supplied by ANRITSU or by thecustomer, would include:qTest Sequence development and managementqPart number and

1-14 SOFTWARESTRUCTUREThe software structure is illustrated in Figure 1-6 (below).GENERAL INFORMATION SOFTWARE STRUCTUREME7840A OMM 1-11AnritsuMeasure

1-15 MS7840A OPTIONS The following options are available:1-16 OPTIONALACCESSORIESThe accessories described below are available from ANRITSU.qModel ML2

MS4782D Test Set. The same cable is also used to connect the TestSet to the MS462XC receivers on the rear panel.1-17 PREVENTIVEMAINTENANCEThe ME7840A

PERFORMANCE SPECIFICATIONS GENERAL INFORMATION1-14 ME 7840A OMMCharacteristic Value NotesAmplifier Under Test Power Output100 W maximum With MS4782D T

1-20 RECOMMENDEDITEMSTable 1-2 provides a list of test equipment and other items needed for cal-ibration and performance verification.1-21 USER SUPPLI

Chapter 2Installation2-1 INTRODUCTION This chapter describes the installation, connection and set-up of theequipment that comprises the ME7840A Power

A listing of the non-optional-accessories always supplied with PATS islisted below. The cables and terminators are shown in Figures 2-3 and2-2, on pag

INSTALLATION INSTALLATION - HARDWAREME7840A OMM 2-3GPIB CABLEGPIB CONNECTORDEDICATEDGPIB CONNECTOR(Used duringpower level calibration)CONTROL CABLEEXT

Step 3. Install the four RF cables between the rear of the MS462XCand the Test Set. Torque the cables to 8 inch-pounds (SMAConnectors) or 12 inch-poun

INSTALLATION INSTALLATION - HARDWAREME7840A OMM 2-5EXTERNAL ANALOGIN CONNECTORCURRENT SENSORCABLE PASSAGECURRENT PROBEHEADFigure 2-4. Current Probe Co

INSTALLATION - HARDWARE INSTALLATION2-6 ME 7840A OMMFigure 2-5. Software Installation Window

2-5 INSTALLATION -SOFTWAREME7840A software is delivered on a CD. The ANRITSU Power Tools li-brary Version 4.0 or higher, which is required to be insta

2-6 SERVICE CENTERS ANRITSU Service Centers are listed in Table 2-2.SERVICE CENTERS INSTALLATION2-8 ME 7840A OMMUNITED STATESANRITSU COMPANY685 Jarvis

Chapter 3Operations, General3-1 INTRODUCTION The basic operation of the Model ME7840A Power Amplifier Test Station(without external preamplifiers) is

Step 6. When ready for measurements, cautiously apply DC power tothe AUT.Step 7. Check that the normally factory-installed RF coaxial “jumper”cable is

OPERATIONS, GENERAL PREPARING THE SYSTEMME7840A OMM 3-3OptionalCurrent ProbeCustomer SuppliedPower Meterfor flat test portpower calibrationCustomer Su

3-3 USING PATSSOFTWAREPATS software requires a computer with GPIB capability running Win-dows 95 or better (98/NT/2000). The software is started by se

3-4 COLLATERALFUNCTIONSThe PATS software collateral functions are found on the top menu bar un-der “Files,” “Tools,” and “Help.” (below)File The file

qSave Cal Files to PC. Displays a dialog box (similar to that shownfor Recall Cal Files from PC, below) showing the cal files stored inthe default fol

Tools The “Tools” menu (below) displays a drop-down list that provides threecollateral options described below. The “Run Calibration Files” option isd

b. Calibration File Options: Provides options for findingand recalling calibration files (below). These files areused to establish test setup for the

Chapter 4Operations, Calibration4-1 INTRODUCTION Measurements always include a degree of uncertainty due to imperfec-tions in the measurement system.

Alternatively, Scorpion front panel settings may be set manually and ap-plied during the automated measurements under PATS software as fol-lows:qOn th

4-5 GENERAL Calibration operations are described in this and the following paragraphsStep 1. Click on “Start,” “Programs,” “Pats V1.1,” then “Pats” (F

sure that the equipment is properly connected to the bus. Ifso, the following screen will be displayed:Step 3. Click on “Run Calibration Procedure” to

Step 3. Double-click on “A_Power Level.txt.” . The program startswith a linear power calibration (below).Step 4. Before hitting the “Next” button, con

NOTEThe linear power calibration takes up-to-5 minutes tocomplete. It calibrates the output power at the refer-ence plane for both internal sources (p

Step 6. Before pressing “Next” disconnect the power sensor and con-nect a throughline between Test Ports 1 and 2 on theMS4782X Test Set, as shown belo

Safety SymbolsTo prevent the risk of personal injury or loss related to equipment malfunction, ANRITSU Company usesthe following symbols to indicate s

4-7 HOT S22 The “B_HotS22.txt” file provides prompts for setting up a Hot S22specifi-cation file. Hot S22is a return loss measurement of an amplifier’

Step 3. Press “Next” for the next prompt (below). The 3653 or 3753LFCalibration Kits contain a disk with calibration data. Thedata has to be installed

Step 6. Press “OK” for the next step (below). Connect the Load to Port2.Step 7. Press “OK” to complete the Hot S22calibration.HOT S22 OPERATIONS, CALI

4-8 S-PARAMETERSCALThe “C_S-Parameters Cal.txt” file to provides prompts for setting upS-parameters specification file. The prompts cause the Scorpion

Step 3. Press “Next” for the next step (below). The 3653 or 3753LFCalibration Kits contain a disk with calibration data. Thedata has to be installed f

Step 6. Press “OK” for the next step (below). Connect the Short toTest Port 1 and the Open to Test Port 2.Step 7. Press “OK” for the next step (below)

Step 8. Press “OK” to complete the S Parameters calibration (below).S-PARAMETERS CAL OPERATIONS, CALIBRATION4-14 ME 7840A OMM

4-9 CAL FILE SETUP The “D_Cal File Setup.txt” file provides prompts for setting up One-tonepower sweep, IMD, Two-Tone Power Sweep, and Harmonic specif

Step 3. Press “Next” for the next prompt (below). The 3653 or 3753LFCalibration Kits contain a disk with calibration data. Thedata has to be installed

Step 5. Press “OK” to continue to the IMD cal file setup prompt (be-low). Follow the prompt and connect a throughline betweenTest Ports 1 and 2 on the

Safety 1 ME7840A OMMAlways refer to the operation manual when working near locations atwhich the alert mark, shown on the left, is attached. If the op

Step 6. Press “Next” to begin the Power Sweep cal file setup (below).CAL FILE SETUP OPERATIONS, CALIBRATION4-18 ME 7840A OMM

Step 7. Press “Next” to perform Harmonic Cal File Setup calibration(below).Step 8. Press “Next” to end the calibration and return to the mainscreen.OP

Chapter 5Operations, Measurement5-1 INTRODUCTION This chapter describes the five measurements available with theME7840A software: S-Parameters, Power

nC5, Hot S22¾ “Hots22_1.cal”Step 5. Select appropriate file “Open” (below).Calibration(s) NotCompletedSometimes users may wish to run a measurement us

nD1, S-Parameters and Hot S22üPoints = 201üStart Frequency = 800 MHzüStop Frequency = 2400 MHzüInput Power=0dBnD2, Power Sweep (2 tone power sweep)üMa

5-5 S-PARAMETER TESTS:S21,S11,S22,S12, ALLThis test measures the scattering parameters (S-parameters). The testmodule comprises six tests: S11,S12,S21

nSelect Start Test: Observe that the test screen(Figure 5-1) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qWri

qChange Params: Returns to User Inputscreen.qAutoscale Checkbox: Turns autoscale on oroff. Autoscale automatically scales the mea-surement results.qRe

5-6 S-PARAMETERTEST: K FACTORThis test describes the K Factors measurement. This measurement isdescribed in Chapter 1, paragraph 1-10.Procedure.Prepar

nSelect Start Test: Observe that the test screen(Figure 5-1) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qWri

Table of ContentsChapter 1 General InformationSCOPE OF THIS MANUAL...1-1INTRODUCTION ...1

qChange Params: Returns to User Inputscreen.qAutoscale Checkbox: Turns autoscale on oroff. Autoscale automatically scales the mea-surement results.qRe

5-7 POWER SWEEP, TWOTONEThis measurement module has three variations of possible MeasurementTypes: Power Sweep (single frequency), Multi Frequency Pow

nTest Set Setting: Byte value for setting test setattenuation and source switch (below).OPERATIONS, MEASUREMENT POWER SWEEP, TWO TONEME7840A OMM 5-11I

Select Start Test and observe that the test screen(Figure 5-3) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qW

qAutoscale Checkbox: Turns autoscale on oroff. Autoscale automatically scales the mea-surement results.qReset/Zoom: Disabled for this test.qMax/Min: T

Multiple FrequencyPower SweepProcedure.nMeasurement Type: Drop down options. Set to“Multi Freq Power Sweep ” for this test.nMain Tone (MHz): CW Freque

nTest Set Setting: Byte value for setting test setattenuation and source switch (below).OPERATIONS, MEASUREMENT POWER SWEEP, TWO TONEME7840A OMM 5-15I

Select Start Test. Observe that the test screen (Fig-ure 5-4) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qWr

qPause/Go: Stops data transfer from VNA toPC and places MS4623C in “Local” mode.qReturn: Returns to the main PATS screen.qChange Params: Returns to Us

Gain and IMD PowerSweepProcedure:nMeasurement Type: Drop down options. Set to“Gain and IMD ” for this test.nMain Tone (MHz): CW Frequency setting fors

Installation ...2-7What else is on the CD?...2-7Uninstalling the software...

nTest Set Setting: Byte value for setting test setattenuation and source switch (below).OPERATIONS, MEASUREMENT POWER SWEEP, TWO TONEME7840A OMM 5-19I

Select Start Test. Observe that the test screen (Fig-ure 5-5) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qWr

qReturn: Returns to the main PATS screen.qChange Params: Returns to User Inputscreen.qY1, Y2: Provides for rescaling the left or rightaxis.qRescale: R

5-8 POWER SWEEP, ONETONEThis measurement module has three variations of possible MeasurementTypes: Power Sweep (single frequency), Multi Frequency Pow

nTest Set Setting: Byte value for setting test setattenuation and source switch (below).OPERATIONS, MEASUREMENT POWER SWEEP, ONE TONEME7840A OMM 5-23I

Select Start Test and observe that the test screen(Figure 5-3) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qW

qAutoscale Checkbox: Turns autoscale on oroff. Autoscale automatically scales the mea-surement results.qMax/Min: Type in maximum and minimumdisplay va

5-9 IMD This test measures inter-modulation distortion.ProcedurePrepare the ME7840A as shown in Chapter 3.Enter the appropriate test values in the dis

Select Start Test. Observe that the test screen (Fig-ure 5-7) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qWr

qReturn: Returns to the main PATS screen.qChange Params: Returns to the User In-put screen.qRescale: Rescales the measurement results.qMax/Min: Type i

Gain and IMD Power Sweep ...5-18POWER SWEEP, ONE TONE ...5-22Single Frequency Power Sweep ...

5-10 HARMONICS The harmonics test measures and displays the harmonics in the deviceunder test.ProcedurePrepare the ME7840A as shown in Chapter 3.Enter

Select Start Test and observe that the test screen(Figure 5-8) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qW

qChange Params: Returns to User Inputscreen.qAutoscale Checkbox: Turns autoscale on oroff. Autoscale automatically scales the mea-surement results.qMa

5-11 HOT S22 The output match of a power amplifier under excited conditions is criticalinformation that has a strong bearing on efficiency, output pow

nTest Set Setting: Byte value for setting test setattenuation and source switch:The PATS Hot S22measurement provides the following additional fea-ture

Select Start Test and observe that the test screen(Figure 5-9) appears.Button Panel Options:qPrint: Prints a copy of the screen graphic to aprinter.qW

qChange Params: Returns to User Inputscreen.qAutoscale Checkbox: Turns autoscale on oroff. Autoscale automatically scales the mea-surement results.qRe

Chapter 6Performance VerificationProcedure6-1 INTRODUCTION The following are the specific tests that should be used to verify the per-formance of the

6-4 SOURCE OUTPUTACCURACYThis test verifies the source output accuracy of the MS462XC. The testprocedure uses the Power ALC Verification built-in func

Step 4. Connect power sensor to MS462XC Port 1 and select STARTVERIFICATION softkey.Step 5. Verify that Source 1 passes this test.Step 6. Press the SE