Introduction to High Frequency Structure Simulator.ppt

1、Introduction to High Frequency Structure Simulator,Pengcheng Jia,Background,Introduced from 90s Simulation tool for complex 3 D geometries Using Finite Element Method Adaptive Mesh generation & refinement 2 Main VendorsAgilent & Ansoft Merger from May 1 Transfer to Ansoft HFSS after Nov. 1, 2001,Req

2、uirement & 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,Agilent HFSS,Ansoft HFSS,Features(1),Computes s-pa

3、rameters 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,Features(2),Advanced materials

4、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,Applications,Antennas Microwave transitions Waveguide components RF filters Three-dimensional discontinuitie

5、s Passive circuit elements,Procedure to simulate,Open or Make new project Draw objects Assign material property Define boundary conditions Solve Display result,New project,Project Preferences,Drawing basics,Drawing Lines & 2 D objects,Drawing 3 D objects,Object Library,Editing Objects,Materials,Meta

6、l & Resistor,Boundaries,Boundary Conditions,Add A Boundary,Display Boundary,Calibrating Ports,Solve,Frequency & Meshing,Displaying Results,S Matrix,Plot Field,Result Comparison,r=8.5; Hsub=625 um; W=150um; G=75 um,-Theoretical Equation,Finite Element Method,Tetrahedron,Impedance Concept,Zpi, Zpv & Z

7、vi Microstrips use Zpi impedanceSlot-type (CPW) use Zpv impedanceTEM waves use Zvi impedance,Projects with HFSS,Microstrip Line to Waveguide Transition,EM Field of the transition,Waveguide Combiner System,Slotline Antenna,Bonding Wire Discontinuity,Packaging for CPW Lines,Field Plot,Useful links,http:/ http:/dutettq.et.tudelft.nl/hfss/welcome.html http:/wwwinfo.cern.ch/ce/ae/Maxwell/index.htmlDocuments for HP HFSS is in “Scully”c:/Otherprg/hfss/doc,References,HP High-Frequency Structure Simulator Users Reference HP High-Frequency Structure Simulator Tutorial,