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- 2. INTRODUCTION TO HIGHINTRODUCTIONTO HIGH FREQUENCY STRUCTUREFREQUENCY STRUCTURE SIMULATORSIMULATOR
- 3. BACKGROUNDBACKGROUND • Introduced from90sIntroduced from 90s • Simulation tool for complex 3 D geometriesSimulation tool for complex 3 D geometries • Using Finite Element MethodUsing Finite Element Method • Adaptive Mesh generation & refinementAdaptive Mesh generation & refinement • 2 Main Vendors—Agilent & Ansoft2 Main Vendors—Agilent & Ansoft • Merger from May 1Merger from May 1 • Transfer to Ansoft HFSS after Nov. 1, 2001Transfer to Ansoft HFSS after Nov. 1, 2001
- 4. REQUIREMENT & RESOURCESREQUIREMENT& RESOURCES • HFSS consume tremendous memory if fine result is neededHFSS consume tremendous memory if fine result is needed • 300M+ Memory and 400M+ processor is recommended300M+ Memory and 400M+ processor is recommended • Floating License Key within ECEWIN2K subnetFloating License Key within ECEWIN2K subnet • Remote access to new Scully which has 1 G RAMBUS400 Memory and 1.7G P4Remote access to new Scully which has 1 G RAMBUS400 Memory and 1.7G P4 processorprocessor
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- 7. FEATURES(1)FEATURES(1) • Computes s-parametersand full-wave fields for arbitrarily-shaped 3D passiveComputes s-parameters and full-wave fields for arbitrarily-shaped 3D passive structuresstructures • Powerful drawing capabilities to simplify design entryPowerful drawing capabilities to simplify design entry • Field solving engine with accuracy-driven adaptive solutionsField solving engine with accuracy-driven adaptive solutions • Powerful post-processor for unprecedented insight into electrical performancePowerful post-processor for unprecedented insight into electrical performance
- 8. FEATURES(2)FEATURES(2) • Advanced materialsAdvancedmaterials • Model Library-including spiral inductorsModel Library-including spiral inductors • Model half, quarter, or octet symmetryModel half, quarter, or octet symmetry • Calculate far-field patternsCalculate far-field patterns • Wideband fast frequency sweepWideband fast frequency sweep • Create parameterized cross section models- 2D modelsCreate parameterized cross section models- 2D models
- 9. APPLICATIONSAPPLICATIONS • AntennasAntennas • MicrowavetransitionsMicrowave transitions • Waveguide componentsWaveguide components • RF filtersRF filters • Three-dimensional discontinuitiesThree-dimensional discontinuities • Passive circuit elementsPassive circuit elements
- 10. PROCEDURE TO SIMULATEPROCEDURETO SIMULATE 1.1. Open or Make new projectOpen or Make new project 2.2. Draw objectsDraw objects 3.3. Assign material propertyAssign material property 4.4. Define boundary conditionsDefine boundary conditions 5.5. SolveSolve 6.6. Display resultDisplay result
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- 14. DRAWING LINES &2 D OBJECTSDRAWING LINES & 2 D OBJECTS
- 15. DRAWING 3 DOBJECTSDRAWING 3 D OBJECTS
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- 19. METAL & RESISTORMETAL& RESISTOR
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- 22. ADD A BOUNDARYADDA BOUNDARY
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- 26. FREQUENCY & MESHINGFREQUENCY& MESHING
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- 30. RESULT COMPARISONRESULT COMPARISON •r=8.5; Hsub=625 um; W=150um; G=75 umr=8.5; Hsub=625 um; W=150um; G=75 um @10G Theoretical HFSS L=100 um 0.04 nH 0.05 nH L=300 um 0.12 nH 0.13 nH L=600 um 0.24 nH 0.24 nH L=800 um 0.33 nH 0.31 nH 0 0 0 L L Z jZ Tan L Z Z Z jZ Tan L β β + = + ---Theoretical Equation
- 31. FINITE ELEMENT METHODFINITEELEMENT METHOD Tetrahedron
- 32. IMPEDANCE CONCEPTIMPEDANCE CONCEPT •Zpi, Zpv & ZviZpi, Zpv & Zvi • Microstrips use Zpi impedanceMicrostrips use Zpi impedance • Slot-type (CPW) use Zpv impedanceSlot-type (CPW) use Zpv impedance • TEM waves use Zvi impedanceTEM waves use Zvi impedance * 2 1 ; ; 2 P Zpi P ExHds I Hdl I I = = = × ∫ ∫Ñ Ñ * 2 V V Zpv P × = Zvi Zpi Zpv= ×
- 33. PROJECTS WITH HFSSPROJECTSWITH HFSS • Microstrip Line to Waveguide TransitionMicrostrip Line to Waveguide Transition
- 34. EM FIELD OFTHE TRANSITIONEM FIELD OF THE TRANSITION
- 35. WAVEGUIDE COMBINER SYSTEMWAVEGUIDECOMBINER SYSTEM
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- 37. BONDING WIRE DISCONTINUITYBONDINGWIRE DISCONTINUITY
- 38. PACKAGING FOR CPWLINESPACKAGING FOR CPW LINES
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- 40. USEFUL LINKSUSEFUL LINKS •http://www.ansoft.comhttp://www.ansoft.com • http://dutettq.et.tudelft.nl/~hfss/welcome.htmlhttp://dutettq.et.tudelft.nl/~hfss/welcome.html • http://wwwinfo.cern.ch/ce/ae/Maxwell/index.htmlhttp://wwwinfo.cern.ch/ce/ae/Maxwell/index.html • Documents for HP HFSS is in “Scully”Documents for HP HFSS is in “Scully” c:/Otherprg/hfss/docc:/Otherprg/hfss/doc
- 41. REFERENCESREFERENCES • HP High-FrequencyStructure Simulator User’s ReferenceHP High-Frequency Structure Simulator User’s Reference • HP High-Frequency Structure Simulator TutorialHP High-Frequency Structure Simulator Tutorial