Abstract:In this article, the radiation properties of a slot-loaded cylindrical dielectric resonator antenna (CDRA) have been analyzed strategically to realize a dual-band operation with a higher gain. A microstrip line based aperture coupled feed is adopted to excite dual modes at 4.8 GHz and 8.28 GHz with an impedance bandwidth of 5.84% (280 MHz) and 10.62% (880 MHz), respectively. A superstrate layer is placed at a suitable gap above the antenna structure to enhance the antenna gain by utilizing the principle of mul… Show more
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