Next Seminar:
April 8-9 2002
Raleigh, NC



EMI/EMC Computational Modeling for
Real World Engineering Problems

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AGENDA
Day One
  • Why is EMI modeling important?
  • EMI modeling state-of-the-art
  • Tool box approach
  • Range of modeling approaches
    • Rule checking
    • Differential current emissions
    • Quasi-static
    • Full-wave
    • Magic
  • Brief description of EMI modeling techniques
  • Finite-Difference Time-Domain (FDTD)
  • Method of Moments (MoM)
  • Finite Elements Method (FEM)
  • Transmission Line Method (TLM)
  • Partial Element Equivalent Circuit (PEEC)
  • Other uses for electromagnetics modeling
  • The Method of Moments Technique
    • Linear operators
    • Integral equations
    • MoM development
  • The Finite-Difference Time-Domain method
    • Basic formulation
    • Two-dimensional FDTD
    • Three-dimensional FDTD
    • Modeling primary sources in FDTD
    • Mesh truncation techniques
    • Field extension
    • FDTD simulation errors
  • The Finite Elements Method
    • Variational forms
    • Construction of finite elements
    • Creating the finite element matrix
    • Matrix solution
    • Solving the Two-dimensional Helmholtz Wave Equation
    • Variational form for the Helmholtz equation
    • Mesh truncation techniques
    • Field extension
  • Other methods
    • TLM
    • PEEC
    • Multipole techniques
  • Preparation for modeling
  • The EMI/EMC problem
  • Overview of modeling
    • Two and three dimensional models
    • Quasi-static techniques
    • Full-wave techniques
    • Time-domain techniques
    • Frequency-domain techniques
  • Strengths and weaknesses of each computational technique
Day Two
  • Elements of an EMI/EMC model
    • Sources
    • Model geometry
    • Completing the problem space
  • Model goals
    • Defining goals
    • Desired results
    • Problem geometry
    • Graphics
  • How to approach EMI/EMC modeling
    • Idealized models
    • Isolated models
    • Multistage modeling
  • EMI/EMC model validation
    • Computational technique validation
    • Individual software code implementation validation
    • Validation using measurements
    • Validation using intermediate results
  • Standard EMI/EMC problems for software evaluation
    • General principles
    • Standard problems
    • Radiation through apertures
    • Wire through an aperture
    • RF current on reference plane due to remote source
    • Common mode voltage on a connector due to a known noise source
    • Reduction in coupling due to partial internal shield
    • Direct radiation from an unshielded circuit module
  • Creating real-world models
  • Shielding effectiveness
  • Emissions from a microstrip
  • IC packaging effects
  • Aircraft navigation antenna susceptibility to on-board personal electronic devices
  • Medical electronics sensor susceptibility to near-by cellular phone emissions
  • Unshielded telephone susceptibility to RF fields
  • ESD susceptibility of personal laptop computers
  • EMC test site evaluation (OATS, semi-anechoic room, GTEM, reverberation chamber)
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