Creating the Model
Create the model in CADFEKO. Define any ports and sources required for the model. Specify the operating frequency or frequency range for the model.
- Set the model unit to millimeters.
-
Define the following variables:
- d = 5.8 (The spacing for the periodic boundary condition.)
- h = 0.5 (The thickness of the substrate.)
- t = 0.091 (The thickness of the bonding material.)
- s1 = 0.15 (The width of the dielectric surface, bottom layer.)
- s2 = 0.18 (The width of the dielectric surface, upper layer.)
- w = 2.5 (The width of the centre metallic surface.)
- fmin = 5e9 (The minimum frequency.)
- fmax = 15e9 (The maximum frequency.)
-
Create the two dielectric media.
-
Create a cross shape.
- Arm length (Lu): d/2
- Arm length (Lv): d/2
- Strip width: w
- Label: Cross
-
Create a plane shape for the bottom layer.
- Width (W): d-s2
- Depth (D): d-s2
- Label: Plane_Bot
-
Create a plane shape for the top layer.
- Width (W): d-s1
- Depth (D): d-s1
- Label: Plane_Top
-
Create a unit cell.
-
Select the UnitCell1 (under the Unit
Cells group) and click Build
Geometry
- On the dialog, select the Set Periodic Boundary Condition (PBC) checkbox.
Figure 1. Top view of the FSS after the auto-generation of the equivalent geometry from the unit cell definition.
After the Build Geometry tool was run, the equivalent geometry is created from the unit cell definition and available in the model tree. - Add a single incident plane wave with θ=0° and ϕ=0°.
- Set a continuous frequency range from fmin to fmax.