Design of Stacked Ring Dielectric Resonator Antenna (DRA) for WLAN and WiMAX Applications

In this paper, a triple-band stacked ring dielectric resonator antenna is constructed and examined. The recommended antenna is fed in the middle by a modified E-shaped slot and has two dielectric layers: the upper ring dielectric layer is prepared by Al
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O
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ceramic with permittivity of 9.8, and the lower ring dielectric layer is prepared by Teflon with dielectric loss tangent of 0.001 and permittivity of 2.1 to achieve a tri-frequency band of 1.8 GHz, 3.8 GHz, and 5 GHz. The antenna's 70×70 mm size makes it appropriate for WLAN and WiMAX applications. A simulated bandwidth range of 1.8 GHz (1.73-1.89 GHz), 3.8 GHz (3.64-3.96 GHz), and 5 GHz (4.79-5.16 GHz) is provided by the stacked ring dielectric resonator antenna, correspondingly. The software, called ANSYS HFSS does the simulation. Thus, the antenna design in this research paper will be helpful for the wireless application.