Changes

EM.Tempo

423 bytes removed, 21:12, 31 July 2015
/* Generating the FDTD Mesh */
[[Image:Info_icon.png|40px]] Click here to learn more about '''[[Mesh_Generation_Schemes_in_EM.Cube#EM.Tempo.27s_Adaptive_Brick_Mesh_Generator | EM.Tempo's Adaptive Brick Mesh Generator]]'''.
EM.Tempo also offers a "Uniform" uniform, frequency-independent, fixed-cell FDTD mesh generator. The fixed-cell mesh consists of three uniform grids along the XY, YZ and ZX principal planes. In that case, the fixed-cell mesh generator tries to fit your physical structure to the mesh grid rather than adapting the mesh to your physical structure.
[[Image:Info_icon.png|40px]] Click here to learn more about '''[[Mesh_Generation_Schemes_in_EM.Cube#The_Fixed-Cell_Brick_Mesh_Generator | The Fixed-Cell Brick Mesh Generator ]]'''.
Occasionally, you may prefer opt for a more regular regularized FDTD mesh with almost equal grid line spacing spacings everywhere, but still with a frequency-dependent cell size. In For that casepurpose, you can select EM.Tempo offers the "<u>'''Regular'''</u>" option FDTD mesh generator, which is a simplified version of the '''Mesh Type '''dropdown list in the FDTD Mesh Settings dialogits adaptive mesh generator. The regular FDTD mesh enforces only two of the above [[parameters]]criteria: '''Minimum Mesh Density''' and '''Absolute Minimum Grid Spacing'''. Or you may opt for an absolutely "<u>'''Uniform'''</u>" mesh type, for which you need to specify the '''Cell Size '''along the X, Y, Z directions in project units. [[EM.Cube]] offers the "Regular" FDTD mesh generator, which is a simplified version of the adaptive mesh generator. In a regular FDTD mesh, the The grid cell sizes stay rather the same in this mesh are almost I=uniform in objects of the same material composition. The mesh resolution increases in materials of higher permittivity and/or permeability based on the effective wavelength in exactly the same way as the adaptive meshfree-space regions.
{{Note|When choosing a mesh type for your FDTD simulation, keep in mind that adaptive and regular mesh types are frequency-dependent and their density varies with the highest frequency of your specified bandwidth, while the uniform mesh type is always fixed and independent of your project's frequency settings.}}
<tr>
<td> [[Image:FDTD34.png|thumb|450px|A human head model and a cellular phone handset on its side.]] </td>
<td> [[Image:FDTD33.png|thumb|450px440px|The FDTD mesh of the human head model and the cellular phone handset.]] </td>
</tr>
</table>
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