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EMI ANALYST Software SuiteIntuitive Accurate Effective

Radiated susceptibility analysisoverview

EMI Analyst

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EMI Analyst is a 4-in-1 EMI Analysis ToolEMI Analyst calculates electromagnetic interference for cable-connected circuits

Conducted Emissions CE AnalystAF and RF current and voltage emitted on cablesConducted Susceptibility CS AnalystCurrent and voltage induced by interference injected on or coupled to cablingRadiated Emissions RE AnalystElectric and magnetic fields emitted by cablesRadiated Susceptibility RS AnalystCurrent and voltage induced by electromagnetic fields on cable

EMI Analyst

EMI AnalystWhat is EMI Analyst?2

What does RS Analyst do?Calculates current and voltage induced on cabling andend circuits by external electromagnetic fields

EMI Analyst

EMI AnalystEMI Analyst Covers All Radiated SusceptibilityTest SpecificationsSimulates RS test setups for most EMI test configurationsConsumerIndustrial AviationAutomotiveMilitary and Space

EMI Analyst

EMI AnalystConsumer and Industrial ElectronicsRadiated ImmunityTest SetupEN61000-4-3Edition 1, 2, 3Non-conductive table1, 3, 10, 20, 30 V/m1 m or 3 m test distance 80 MHz 6 GHz

EMI Analyst

EMI AnalystCommercial Aircraft ElectronicsRF Radiated SusceptibilityTest SetupRTCA/DO-160Grev. D, E, F, GCopper test bench1 V/m to 7000 V/m1 m test distance100 MHz to 18 GHz

EMI Analyst

EMI AnalystAutomotive ElectronicsRadiated Immunity (ALSE)Test Setup(absorber lined shielded enclosure)ISO 11452-22nd EditionCopper test bench25 V/m to 100+ V/m1 m test distance80 MHz to 4.2+ GHz

EMI Analyst

EMI Analyst

Military and Space ElectronicsRadiated SusceptibilityTest SetupMIL-STD-461G RS03, RS103rev. C, D, E, F, GCopper test bench5 V/m to 200+ V/m1 m test distance10 kHz to 40 GHz

EMI Analyst

EMI AnalystWhat Information is Needed? Before you start the analysis, collectFrequency RangeField LevelField direction, polarizationCabling configurationEnd CircuitsPass/Fail Criteria(susceptibility threshold)

EMI Analyst

EMI AnalystSwitch Mode Power ConverterMIL-STD-461F, RS103 tailoredRadiated Susceptibility ExampleBlockDiagramCircuit Schematic

Frequency Range2 MHz 18 GHzField Level5 50 V/mField direction, polar.Broadside, verticalCabling configurationUnshielded wire pair over ground planeEnd Circuits(L) EMI filter(R) LISN & PSPass/Fail Criteria100 mV 1 GHz1 V > 1 GHz

EMI Analyst

EMI AnalystFrequency RangeStart & Stop FrequencyScale: Log or LinearResolutionPts / Decade for Log ScaleHz for Linear Scale

Example: MIL-STD-461FFreq: 2 MHz 18 GHzScale: LogRes: 100 pts / dec48 ppd, 2 MHz 30 MHz462 ppd, 30 MHz 1 GHz924 ppd, 1 GHz to 40 GHz

HELP: file:///C:/Program%20Files%20(x86)/EMI%20Software/Help/NetHelp/EMI_Analyst_Help.htm#!modules/5/documents/frequency.htm

EMI Analyst

EMI AnalystField LevelField strength to which cables are exposedE-fieldFar field sourceFrequency/Amplitude PairsEnter in tableLoad/Save to template libraryAutomatically graphed

HELP: file:///C:/Program%20Files%20(x86)/EMI%20Software/Help/NetHelp/EMI_Analyst_Help.htm#!modules/5/documents/limit1.htm

EMI Analyst

EMI AnalystField Polarization and DirectionPresetsAll RS tests are BroadsideMost specs require vertical and horizontal polarization Broadside, vertical usually worst caseEdit valuesNumeric entryRotate click + dragEdit appearanceZoom Ctrl + dragMove Shift + drag

HELP: file:///C:/Program%20Files%20(x86)/EMI%20Software/Help/NetHelp/EMI_Analyst_Help.htm#!modules/5/documents/fielddirection.htm

EMI Analyst

EMI AnalystCabling Configuration8 built-in templates4 shielded, 4 unshieldedInputPhysical dimensionsConductor and dielectric materialsComputesCharacteristic impedanceR, L, C, G values

HELP: file:///C:/Program%20Files%20(x86)/EMI%20Software/Help/NetHelp/EMI_Analyst_Help.htm#!modules/5/documents/conductors1.htm

EMI Analyst

EMI AnalystEnd CircuitsSchematic captureLadder networkPassive components (R, L, C, and magnetically coupled)Left-EndEMI filter for PS circuitRight-EndLISN circuit

HELP: file:///C:/Program%20Files%20(x86)/EMI%20Software/Help/NetHelp/EMI_Analyst_Help.htm#!modules/5/documents/schematic.htm

EMI Analyst

EMI AnalystLeft-End Circuit: EMI Filter

Input Power Filter Schematic

EMI Analyst Filter Schematic

EMI Analyst

EMI AnalystRight-End Circuit: LISN and DC Power Supply

LISN schematic

EMI Analyst LISN schematicand power supply impedance

EMI Analyst

EMI AnalystAnalysis Results ConductorsVoltage and current induced on cable conductors

EMI Analyst

EMI AnalystAnalysis Results AnimatedInput Z, DM and CM

EMI Analyst

EMI AnalystAnalysis Results 3DRotate Click + dragZoom Ctrl + dragMove Shift + drag

Shown: Current onWire 1

EMI Analyst

EMI Analyst

Analysis Results Left EndInduced DM voltage inboard of filtering

V

867 mV max.Pass/Fail Criteria:100 mV 1 GHz, 1 V > 1 GHz

EMI Analyst

EMI AnalystLearn MoreFor more information about RS Analyst and the other three applications that make up the EMI Analyst, visit http://emisoftware.com.

EMI Analyst

EMI Analyst