PEC Cube - CST2013 MWS Examples

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General Description

In this example the RCS calculation of a metallic cube is presented. A plane wave is being excited and the scattering properties of the structure are of interest.

Structure Generation

The frequency unit is set to gigahertz, the background material is defined as vacuum, and the boundary conditions are set to "expanded open".

The structure is quite easy to construct by defining a cubical brick consisting of PEC material. To take advantage of the symmetry of the model two suitable symmetry planes are specified, while the remaining boundary conditions are kept as "expanded open".

Mesh Settings

The number of lines per wavelength is increased to 20.

Solver Setup

Due to the requested RCS calculation the excitation is determined as a plane wave and a farfield monitor is defined at a specified frequency. In addition two 3D field monitors will visualize the propagation of the plane wave through the simulation volume.

Post Processing

The farfield information is stored in the folder Farfields in the navigation tree, where the corresponding plot mode has to be chosen to get the visualization of the RCS properties. The monitored 3D fields can be examined in the folder 2D/3D Results, while the excitation signal of the plane wave is listed in the folder 1D Results.