XFdtd Capabilities

The following capabilities are available in XFdtd.  The biological features are exclusive to the Bio-Pro version of the product. Please visit the XFdtd Versions page for additional details on the differences between the versions.

XF7 Key Capabilities
XStream GPU Acceleration using NVIDIA’s CUDA architecture
XStream + Message Passing Interface (MPI) for GPU clusters
Wrap Flexible PCB
Circuit Element Optimizer
PrOGrid Project Optimized Gridding
XACT Accurate Cell Technology
XTend Script Library
Unlimited Memory
User-defined library containing Parts, Sources, Materials, and more
Full parameterization
Scripting interface with built-in editor
Waveguide Interfaces
Custom Project Templates
Feature-based modeling
Live-updating results
Integrated mesh/CAD viewing
Volumetric/surface field saving via Sensors
Flexible customizable project tree
Simulation Queue
External Queue Integration (EQI)
Interactive graph manipulation
Real-time error checking with feedback
Automatic mesh fixed-point detection
Native multi-platform UI on Windows and Linux
Dispersive Material Calculator
Time dependent material
Materials database populated with more than 350 material definitions
Diagonally anisotropic electric/magnetic
Lossy dielectric/magnetic
Frequency-dependent dielectric/magnetic
Anisotropic magnetized ferrite
Anisotropic dielectric (full tensor)
Non-linear dielectric/magnetic
Thin wires with different radii
Electrostatic Solver
Waveguide Interfaces
Passive loads with Series, Parallel, and RL Parallel C layouts
Multiple excitation types can be used within one simulation
Arbitrary time domain waveforms
Automatic waveform based on Frequency Range of Interest
Voltage/current sources with series/parallel RLC
Non-linear capacitors
Time-controlled on-off switches
Incident plane wave -- both total and scattered field
Gaussian beam
Specify time delay for each individual source
Far-Zone Results
Transient far-zone - specific angles
Steady state 3D far-zone patterns
Ludwig and axial ratio polarization results
Radar cross section
Advanced antenna pattern analysis/antenna over ground plane
Antenna diversity, including independent PDFs for E_phi and E_theta
Circular polarization
Acceleration Options
XStream GPU Acceleration using NVIDIA’s CUDA architecture for single or multiple GPUs
XStream + Message Passing Interface (MPI) for GPU clusters
MPI multiprocessor (distributed memory clusters)
Multiprocessor threading for unlimited cores
External Queue Integration (EQI)
Failure detection of GPU memory
Special Capabilities/Options
Periodic outer boundary condition
Sinusoidal results at multiple frequencies via DFT
Scaling of sinusoidal results
Automatic convergence with delay options
Geometry Generation
3D solid modeler
2D Sketcher with constraints
Feature-based modeling
Poseable Hand to grip hand-held devices
Arbitrary extrudes, revolves, sheets, and wire bodies
Complex geometry modification of created and imported geometries:
  • Wrap
  • Booleans
  • Chamfer edges
  • Blend edges
  • Shell solids
  • Remove faces
  • Offset faces and sheet edges
  • Thicken sheets
  • Loft
  • Stretch
  • Twist
  • Bend solid geometry
  • Project a sheet
  • Scale/translate/rotate/reflect/shear
  • Linear and circular patterns
Primitive geometric shapes:
  • Sphere
  • Cylinder
  • Cone
  • Cuboid
  • Torus
  • Pyramid
  • Prism
  • Frustum
  • Helix
Locators to easily reposition geometries
Cutting plane to reveal inner structure
CAD Import/Export
Import ODB++ PCB files with arbitrary wrap
Import ODB++ PCB files with arbitrary crop
Import Poseable Hand
Import SAT/SAB files
Import DXF files
Import VDA-FS files
Import STL files
Import STEP files
Import IGES files
Import Pro-E files
Import CATIA V4 and V5 files
Import Inventor files
Export to SAT files
Export to STEP file
Export to IGES file
Export to CATIA file
Export to STL file
Export to DXF file
Editing of imported CAD objects
CAD Merge: Retention of previous modifications when importing geometry updates
Dielectric Volume Averaging
XACT Accurate Cell Technology
Fast meshing algorithm (FMA)
Cropped 3D mesh
Automatic/manual control of mesh parameters
Adaptive mesh
Fast 3D mesh viewing
Multithreaded meshing
Prevent objects from touching in the mesh
Visual Output
Planes, surfaces and volumes of output shown with input geometry
E/H/B, conduction current, rotating B near fields, in addition to dissipated power density
3D far field patterns of E, gain, realized gain, axial ratio, radar cross section
Hearing aid compatibility, SAR, MR transmit efficiency, and approximate MR image outputs
Biological temperature rise
Temperature distribution: initial, final, and temperature increase
Graphical Output
Dissipated Power Density
Near zone fields/currents vs. time
Impedance, S-Parameters vs. frequency, VSWR, Active VSWR
Polar plot antenna patterns
Smith chart impedance plots
FFT of transient results
Group Delay output type
Time Domain Reflectometry (TDR) and Time Domain Transmission (TDT) output types
Discrete Frequency Statistics
Radiation efficiency
System efficiency
Dissipated power
Component loss
Net input power
Net available power
Output Export
Movies (*.avi): planar and volumetric field sequences
MATLAB: all data exportable
Comma separated value files (*.csv): all data exportable
Optenni: S-parameters and efficiency
Touchstone files (for example, *.s2p): S-parameters
CITI files: S-parameters


XFdtd Bio-Pro

The Bio-Pro version of XFdtd includes all of the standard features above, plus these additional biomedical EM capabilities:

Additional Biological Calculations Available in XFdtd Bio-Pro
Specific absorption rate (SAR)
Biological Thermal Sensor
Birdcage Tool
MR Transmit Efficiency (proportional to signal-to-noise ratio)
Approximate MR Image
B1+/B1- Fields
Combined SAR results from multiple simulations
Calculate 1- and 10-gram SAR averages
Whole body SAR average
Location of peak SAR
Adjust SAR levels for specified input power or current
Planes of SAR for color display
SAM head CAD file
Hearing aid compatibility (HAC)
Head and body meshes at various resolutions
Frequency-dependent body tissue parameters
VariPose® to reposition body meshes
ICRP, NICT and Virtual Population voxel models supported
Automatic assignment of correct biological materials to all imported voxel types
SAR statistics reporting (mass, dissipated power, mean SAR over regions)


Contact us for additional capability information or to discuss your specific needs.