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.

  1. Open the model touchstoneFedPatch.cfx.
  2. Save the model as completePatch.cfx.
  3. Delete the voltage source.
  4. Delete the general network connections in the schematic view.
  5. Delete the general network.
  6. Delete all the ports.
  7. Import the model feedNetwork.cfx.
    1. On the Import CADFEKO model window select the following check boxes:
      • Geometry
      • Meshing rules
      • Merge identical variables
      • Merge identical media
  8. Delete MicrostripPort2 and MicrostripPort3.
    Note: The output ports of the feed network are removed but the input ports are retained.
  9. Union the feed network and patch.
  10. Add a voltage source to MicrostripPort1 (1 V, 0°, 50 Ω).
  11. Add a 120 Ω load to MicrostripPort4.
    Note: No output requests are necessary. The input impedance of the voltage source is computed automatically.