ELF Solution new


The SEMCAD X Matterhorn ELF Solution comprises a family of quasi-static solvers for modeling extremely low frequency (ELF) and static applications, and movements in static fields. The novel implementation of electro and magnetic static and quasi-static approximations of Maxwell’s equation on a rectangular grid significantly extends the performance of SEMCAD X Matterhorn. Seamless integration into our highly advanced user-friendly GUI supports expanded applications in highly complex structures.

Streamlined workflows are available in SEMCAD X Matterhorn in the form of specific toolsets and features. The    finite element method (FEM) and finite-difference time-domain (FDTD) solvers within the solution are optimized for different approximations of Maxwell’s equations, offering improved speed and accuracy for a wide range of scenarios.

Measured data and user-defined field or current distributions can be used as sources.

The quasi-static solvers have been validated, and the uncertainties have been quantified with analytical and full-wave solutions and by comparison with measurement data. Comprehensive documentation is available for SEMCAD X Matterhorn.




Application Areas

  • Wireless power transfer (WPT) simulations for mobile, automotive, etc.
  • Optimization of system performance
  • Assessment of inductive (Qi) and resonant (AFA) systems


    • Exposure assessment
    • Coil design and optimization
    • Optimization/assessment of materials, material characterization
    • EM and electromechanical devices for industrial systems


    • Accurate design of capacitance and inductance
    • Busbars and power lines
    • Insulation design

      Selected Features

      • 3D Magnetostatic (vector potential + Biot-Savart)
      • 3D Magneto quasistatic
      • 3D Electrostatic (ES) and electro quasi-static (EQS)
      • FEM-based (rectilinear grids), MPI parallelized
      • Varying magnetic permeability, PEC, PMC
      • Floating metals in ES and EQS
      • Generalized Huygens source


      • EM-FDTD (low MHz range), GPU accelerated
      • Ferrite models (shielding, etc.), magnetic dispersion modeling
      • Non-homogeneous intelligent gridder engine (geometry detection)
      • Usage of external calculated fields (e.g., vector potential fields from measurements or external tools)
      • Coupled with thermal solvers


      • Extraction of various dosimetric quantities (IEEE C95.1/95-1, ICNIRP 1998/2010)
      • Special tools/workflows for WPT
      • Results of S-parameters extracted vs. frequency or in steady state
      • Coil wizard
      • MATCH tool, interfaces to circuit simulators
      • Interfaces to SPEAG experimental scanners