A Multi Directional Dielectric Lens Approach for Antennas Used in Industrial RADAR Applications

Christian Schulz, Christoph Baer, Nils Pohl, Thomas Musch, Bianca Will, Ilona Rolfes

International Workshop on Antenna Technology (iWAT), pp. 328-331, Karlsruhe, Germany, March 4-6, 2013


A multi directional dielectric lens approach for beam steering on the basis of an ellipsoidal antenna is presented in this paper. Good antenna characteristics allow a modification of the feeding device used for the desired beam steering in industrial RADAR applications at 24 GHz. Based on a geometrical-optical lens approach and 3D-electromagnetic field simulations the antenna is investigated and the resulting effects of the modification are discussed. The antenna beam is steerable in a wide range, only limited by the antenna dimensions. Using a movable waveguide or multiple feeding elements in one antenna within the same plane, an adjustable beam direction as well as a multistatic beam steering can be realized. Measurements of a prototype confirm the expected behaviour and demonstrate the applicability of the dielectric ellipsoidal lens antenna for beam steering in industrial RADAR applications.


tags: antennas;, radar