Hemispherical Dielectric Resonator Antennas over Non-Planar Surfaces for Direction Finding Systems

In this paper, hemispherical DRA array mounted on or embedded in a hollow circular cylindrical ground structure is used for direction finding systems. In the proposed array only one DRA element is active and the others are parasitic. The direction of the received signal will be determined by the relation between the received signal strengths at each element of the array.