On the Rotation of the Field from a Dipole using Transformation Electromagnetics

Using a coordinate transformation approach a new material is designed such that a horizontal dipole embedded in this material has a field external to the material with the behavior of a vertical dipole in free space. The material is a square rotator medium designed using appropriate coordinate transformations. Numerical simulations are performed in the COMSOL Multiphysics tool to validate the theory used to define the material parameters and to demonstrate the success of the proposed material-embedded horizontal dipole at microwave frequencies. It is believed that the proposed coordinate transformations-based material embedded antenna could have tremendous potential in phased array scanning.