11  Parametrized dual-reflector Cassegrain antenna

This example is available in .../QW-V2D/Standard/Antennas/Reflant/cassant_param.QWPro in the QW-Modeller examples directory and can be loaded using File®Open Examples... command from main menu.

General Description

The present example considers an axisymmetrical two-reflector Cassegrain antenna.

Geometry

This example presents a so-called Cassegrain antenna wherein two reflectors are applied. The secondary reflector is a hyperbolic one (having its focal point behind the reflecting surface). The wave reflected from the secondary reflector impinges on the main parabolic reflector (having the focal point in front of the reflecting surface). The antenna is fed with a horn waveguide. The geometry of this particular model is fully parameterized.

Postprocessing

Reflection coefficient for the Cassegrain antenna

Radiation pattern results for 5.2, 5.5 and 5.8 GHz.

3D Radiation pattern results for 5.8 GHz.