Example 2: Analysis of a Cell with Spiral Geometry and Skew Angle

Step 1: Start newFASANT.

Step 2: Select File and click on New.

Step 3: Select Periodical Structures.

Step 4: Select Centimeters units.

Step 5: Click on "Cell → FSS Primitive → Strips → Spiral", which requires the center, width, number of turns and the radius.

In this example the user enters the following values:

• Center position: 0 0 0
• Width: 0.05
• Number of turns: 2
• Radius: 0.9

Step 6: Click on "Geometry → Point → Single point", which requires the x,y and z coordinates as shown in the next figure.

In this example the user enters the following values into the command line:

• Select point on screen [x y z]: 0 0 -1

Step 7: Click on Cell → Define cell.

• Assign the material of the layer. The selected material is DiClad870_0020

Change the cell dimensions to ensure that the cell contains the whole metallic structure.

• Tx: 2
• Ty: 1.75

The final design of the cell is shown in the next figure.

Step 8: Click on "Simulation → Parameters". Configure the simulation with this parameters:

• Units: GHz
• Initial frequency: 10
• Final frequency: 11
• Samples: 5
• Theta incidence: 0.0
• Phi incidence: 0.0

Step 9: Before running the case, select "Meshing → Create Mesh".

Configure the meshing with this parameters:

• Planar surfaces: 40
• Curved surfaces: 40
• Mesh mode: Frequency, 11.0 GHz
• Processors: 2

Click on "Meshing → Visualize Existing Mesh" to visualize all the generated meshes.

Step 10: Select "Calculate → Execute" and select the number of processors available.

Step 11: When the simulation finishes we can visualize the simulation results. Click on "Show Results → View Cuts By Frequency".

Step 12: To view text file results, click on "Show Results → View Text Files".