Higher order modes in cubic Dielectric Resonator antenna for directivity enhancement

In this paper, a modified slot aperture feed is presented. This new feed is applied to a cubic-shaped Dielectric Resonator as a result it resonates antenna in higher order TE
σ13
modes at 5.59 GHz to achieve enhanced directivity (11.6dBi). This new feed is engineered by replacing the rectangular stub of conventional slot aperture feed with a circular metallic strip of radius 3mm. Which enhances the directivity of antenna by resonating it in TE
σ13
modes. This antenna can be used for 5.59 GHz (5.470–5.725 GHz) WIFI-band applications.