Electromagnetics Full Wave Solvers(P-EM-FDTD)

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  • Brief introduction
The Electromagnetics Full Wave Solvers (P-EM-FDTD) enable accelerated full-wave, large-scale EM modeling (> billion voxels) with Yee discretization on geometrically adaptive, inhomogeneous, rectilinear meshes with conformal sub-cell correction and thin layer models, with support for dispersive materials. The solver includes a unique adaptive subgridding algorithm (from Acceleware) that facilitates the highest possible effectiveness in local mesh refinement.
Contents
  • Optimal simulation speed is achieved with native Graphics Processing Unit (GPU) and MPI accelerations, which were developed by our team who first introduced EM accelerated solvers together with Acceleware in 2006.
  • The unique bidirectional Huygens box approach overcomes the difficulties associated with models that extend across multiple scales and require widely varying resolutions.
  • These solvers, the most frequently applied of their kind in near-field dosimetry, have been have been extensively validated and documented according to the IEEE/IEC 62704-1 standard as well as by comparisons with measured data (> 200 publications).
Applications
  • MRI pTx RF Coil Design
  • MRI Rx RF Coil Design
  • MRI RF Coil Design w/ Gradient Interaction
  • MRI Tx RF Coil Design w/ Gradient Interaction & Safety
  • Gradient Interaction & Safety
  • MRI Gradient Coil Design
  • MRI Gradient Coil Design
  • SAR Assessment
  • RF Hyperthermia
  • RF Tumor Ablation
  • Biomedical Devices
Characteristics
  • Transient, Broadband, and Harmonic simulations (Time-Domain Solver)
  • Results from time and frequency domains
  • Automatic simulation termination
  • ARMA engine for early time convergence detection
  • Non-homogeneous intelligent gridder engine (geometry detection)
  • Unique adaptive subgridding algorithm (from Acceleware)
  • Run-time monitoring
  • Lossy dielectric and magnetic materials
  • Frequency-dependent dielectric and magnetic materials (Debye, Lorentz, Drude, Drude-Lorentz)
  • Metamaterials (double negative)
  • Non-linear materials (Kerr-Effect, Raman-Scattering)
  • Lossy real metals, thin metal sheets and coatings
  • Temperature relevant parameters for T and EM-T solver
  • Predefined materials database (metals, dielectrics, anatomical)
  • User-defined signal source (pulse, step, saw, arbitrary,etc.)
  • Discrete sources (1-D, single edge)
  • Plane-wave and Huygens box sources (total-field /scattered-field)
  • Remote and Iterative Huygens engines (incl. backscattering)
  • Lumped elements (R, L, C, predefined serial/parallel)
  • Parametric sources, lumped elements, sensors
  • ABC, PEC, PMC, periodic boundaries
  • Analytic boundaries (Mur, Higdon)
  • UPML and CPML boundaries with adjustable absorption
  • Execution through Command Line or GUI
  • SIBC accelerated for Broadband and Harmonic
  • Simulations
  • Fully automated multi-port SParameter extraction
  • Results of S-Parameters extracted vs. frequency or in steady state
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