Final Remarks

This example showed the construction, configuration and solution of a microstrip patch antenna. The model was constructed from an infinite substrate and ground plane in the former case, and a finite substrate in the latter case.

Many concepts have been introduced in this simple example that are applicable to models commonly created in CADFEKO. The notable differences between the two models are the solution time and the deviation in the results. The model with an infinite substrate required fewer triangles to model and simulated faster than the model with a specified substrate size. The difference in the resonance frequency is approximately 6.5% and would become greater with decreasing substrate size. Always consider the model consistency with the real physical model.