Multi Wideband Stacked Cylindrical-Rectangular DRA for S, C, X, and Ku Applications

Abstract

This paper proposes a quad-wideband stacked dielectric resonator antenna intended for modern communications. Bandwidth enhancement methods were used to configure antenna characteristics. The DRA consists of several dielectric resonators to form a special shape installed on a grooved ground. Four wide bands were achieved, the first band ranging (3.82 − 4.52) GHz with fractional bandwidth of 16.78 %, the second band covers (5.05–6.77) GHz with fractional bandwidth of 28.9 %, the third band covers (7.76–9.47) GHz with fractional bandwidth 19.8 % and the fourth is ranging (12.66 – 14.98) GHz with fractional bandwidth 16.78 %. Several antenna results are studied for a complete understanding of the proposed antenna behavior.