HFSS.ppt
- 1. Introduction to High Frequency Structure Simulator Pengcheng Jia
- 2. Background Introduced from 90s Simulation tool for complex 3 D geometries Using Finite Element Method Adaptive Mesh generation & refinement 2 Main Vendors—Agilent & Ansoft Merger from May 1 Transfer to Ansoft HFSS after Nov. 1, 2001
- 3. Requirement & Resources HFSS consume tremendous memory if fine result is needed 300M+ Memory and 400M+ processor is recommended Floating License Key within ECEWIN2K subnet Remote access to new Scully which has 1 G RAMBUS400 Memory and 1.7G P4 processor
- 4. Agilent HFSS
- 5. Ansoft HFSS
- 6. Features(1) Computes s-parameters and full-wave fields for arbitrarily-shaped 3D passive structures Powerful drawing capabilities to simplify design entry Field solving engine with accuracy-driven adaptive solutions Powerful post-processor for unprecedented insight into electrical performance
- 7. Features(2) Advanced materials Model Library-including spiral inductors Model half, quarter, or octet symmetry Calculate far-field patterns Wideband fast frequency sweep Create parameterized cross section models- 2D models
- 8. Applications Antennas Microwave transitions Waveguide components RF filters Three-dimensional discontinuities Passive circuit elements
- 9. Procedure to simulate 1. Open or Make new project 2. Draw objects 3. Assign material property 4. Define boundary conditions 5. Solve 6. Display result
- 10. New project
- 12. Drawing basics
- 13. Drawing Lines & 2 D objects
- 14. Drawing 3 D objects
- 15. Object Library
- 16. Editing Objects
- 17. Materials
- 18. Metal & Resistor
- 19. Boundaries
- 21. Add A Boundary
- 22. Display Boundary
- 24. Solve
- 27. S Matrix
- 28. Plot Field
- 29. Result Comparison r=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 ---Theoretical Equation
- 31. Impedance Concept Zpi, Zpv & Zvi Microstrips use Zpi impedance Slot-type (CPW) use Zpv impedance TEM waves use Zvi impedance * 2 1 ; ; 2 P Zpi P ExHds I Hdl I I * 2 V V Zpv P Zvi Zpi Zpv
- 32. Projects with HFSS Microstrip Line to Waveguide Transition
- 33. EM Field of the transition
- 35. Slotline Antenna
- 37. Packaging for CPW Lines
- 38. Field Plot
- 39. Useful links http://www.ansoft.com http://dutettq.et.tudelft.nl/~hfss/welcome.html http://wwwinfo.cern.ch/ce/ae/Maxwell/index.html Documents for HP HFSS is in “Scully” c:/Otherprg/hfss/doc
- 40. References HP High-Frequency Structure Simulator User’s Reference HP High-Frequency Structure Simulator Tutorial