[[Image:Info_icon.png|40px]] Click here to learn more about the basic functionality of '''[[CubeCAD]]'''.
Â
Â
=== Features at a Glance ===
Â
<strong>SOURCES, LOADS & PORTS</strong>
Â
<ul>
<li>
Ideal sources</li>
<li>
Lumped sources with internal resistance</li>
<li>
Waveguide sources with the dominant TE<sub>10</sub> modal profile in hollow rectangular boxes</li>
<li>
Multi-port and coupled port definitions</li>
<li>
Plane wave excitation with linear and circular polarizations</li>
<li>
Multi-ray excitation capability (ray data imported from [[Propagation Module]] or external files)</li>
<li>
Gaussian beam excitation</li>
<li>
Passive RLC lumped loads and nonliear diode elements</li>
<li>
Distributed planar sources with uniform, sinusoidal and edge-singular profiles</li>
<li>
Huygens sources imported from FDTD or other modules</li>
<li>
Source arrays with weight distribution & phase progression</li>
<li>
Periodic sources with user defined beam scan angles</li>
<li>
Standard excitation waveforms (Gaussian pulse, modulated Gaussian and sinusoidal) for optimal frequency domain computations </li>
<li>
Arbitrary user-defined temporal excitation waveforms using mathematical expressions</li>
</ul>
Â
<strong>MESH GENERATION</strong>
Â
<ul>
<li>
Pixelized approximation of solids, surfaces and curves (Yee grid)</li>
<li>
Geometry-aware and material-aware adaptive mesh with gradual grid transitions</li>
<li>
Mesh view with mesh grid profiler</li>
<li>
Manual control of mesh parameters and fixed grid points</li>
</ul>
Â
<strong>3D FDTD SIMULATION</strong>
Â
<ul>
<li>
Full-wave simulation of 3D structures</li>
<li>
OpenMP-parallelized multi-core and multi-thread FDTD simulation engine</li>
<li>
GPU-accelerated FDTD simulation engine based on NVIDIA CUDA platforms</li>
<li>
User defined excitation waveforms</li>
<li>
Total-field-scattered-field analysis of plane wave and Gaussian beam excitation</li>
<li>
Full-wave analysis of periodic structures with arbitrary plane wave incidence angles using the Direct Spectral FDTD method</li>
<li>
Infinite material half-space Green's functions for calculation of far fields in presence of a lossy ground</li>
<li>
Parametric sweeps of variable object properties or source parameters including frequency and angular sweeps</li>
<li>
Multi-variable and multi-goal optimization of structure</li>
<li>
Remote simulation capability</li>
<li>
Both Windows and Linux versions of the FDTD simulation engine available</li>
</ul>
Â
<strong>DATA GENERATION & VISUALIZATION</strong>
Â
<ul>
<li>
Near field intensity plots (vectorial - amplitude & phase)</li>
<li>
Near field probes for monitoring fields in both time & frequency domains</li>
<li>
Far field radiation patterns: 3-D pattern visualization and 2-D polar and Cartesian graphs</li>
<li>
Far field characteristics such as directivity, beam width, axial ratio, side lobe levels and null parameters, etc.</li>
<li>
Radiation pattern of arbitrary array configurations of the FDTD structure or periodic unit cell</li>
<li>
Huygens surface data generation for use in FDTD or other [[EM.Cube]] modules</li>
<li>
Bistatic and monostatic radar cross section</li>
<li>
Periodic reflection/transmission coefficients and k-ß diagrams</li>
<li>
Port characteristics: S/Y/Z parameters, VSWR and Smith chart</li>
<li>
Touchstone-style S parameter text files for direct export to RF.Spice or its Device Editor</li>
<li>
Electric and magnetic energies </li>
<li>
Animation of temporal evolution of fields</li>
<li>
Custom output parameters defined as mathematical expressions of standard outputs</li>
</ul>
==An FDTD Simulation Primer ==