# Patch on Infinite Substrate

Calculate the input impedance of a microstrip patch antenna on an infinite planar multilayer substrate.

Calculate the input impedance of a microstrip patch antenna on an infinite planar multilayer substrate.

**Creating Geometry in CADFEKO**

Create the model geometry using the CAD component, CADFEKO.**Launching the Solver**

Launch the Solver to calculate the results. No requests were added to this model since impedance and current information are calculated automatically for all voltage and current sources in the model.**Launching POSTFEKO**

Launch POSTFEKO from inside CADFEKO.