Microstrip Patch Antenna

Model a microstrip patch antenna using two feed methods (pin feed, microstrip edge feed). The dielectric substrate is considered as a finite substrate and an infinite planar multilayer substrate.

The far field results are compared for the following configurations:
  • Pin-fed, finite ground and solved using MoM (SEP).
  • Pin-fed, finite ground and solved using the FDTD.
  • Pin-fed, infinite substrate and solved using the MoM (planar Green's function for multilayered media).
  • Edge-fed, infinite substrate and solved using the MoM (planar Green's function for multilayered media).

The simulation time and resource requirements are greatly reduced when using an infinite plane, although the model is a less accurate representation of the physical antenna.

Note: A basic optimisation setup is included with the example. Optimisation is applied to the example to determine the pin offset distance resulting in the best impedance match to a 50 Ω system.
Tip: It is recommended to create the models in the order it is presented as each model uses its predecessor as a starting point. If you would like to keep the different models, save each model to a new location before starting a new sub example.