A low sidelobe and wideband series-fed dielectric resonator antenna array

This paper presents a low sidelobe level (SLL) and wideband series fed dielectric resonator antenna array. At first, a conventional low sidelobe series fed DRA array is introduced. Then an improved array is considered to improve SLL and impedance bandwidths by adding an array of slots below the DRA elements. To improve the gain and increase the F/B, a reflector surface is placed at the back of the array.