Creating the Model
Set up the model to write the transmission / reflection coefficients .tr file to be used for the characterised surface.
- Use the model created in Periodic Boundary Conditions for FSS Characterisation and rename the file.
- Specify the symmetry about the X=0 and Y=0 planes as Geometric symmetry.
- Set the frequency to 10 GHz.
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Modify the plane wave source settings:
- Click Loop over multiple directions.
- Set the θ range from 0 to 180°.
- Set the ϕ range from 0 to 360°.
- Increment the incident angle, θ, in 6° steps.
- Increment the incident angle, ϕ, in 6° steps.
- Select the Calculate orthogonal polarisations check box.
Tip: For elements that have small or no variation in ϕ it is sufficient to use a single theta cut when calculating the .tr file.Tip: Due to the large number of θ and ϕ samples that are needed, the simulation time can be long. This step can be skipped by using the .tr file that is provided.