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A multi directional dielectric lens approach for antennas used in industrial RADAR applications

: Schulz, C.


Institute of Electrical and Electronics Engineers -IEEE-:
International Workshop on Antenna Technology, IWAT 2013 : Karlsruhe, Germany, 4 - 6 March 2013
New York, NY: IEEE, 2013
ISBN: 978-1-4673-2830-2 (Print)
ISBN: 978-1-4673-2829-6 (Online)
ISBN: 978-1-4673-2831-9
International Workshop on Antenna Technology (IWAT) <2013, Karlsruhe>
Fraunhofer FHR

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.