Different Ways to Feed a Horn Antenna

Calculate the far field pattern of a pyramidal horn antenna at 1.645 GHz.

Figure 1. A 3D view of the pyramidal horn antenna with far field pattern cuts in POSTFEKO.
The far field results are compared for the following configurations:
  1. Physical feed pin with voltage source.
  2. Waveguide port with waveguide source.
  3. Impressed field distribution (aperture source).
  4. FEM modal port with modal source using the finite element method (FEM).