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Semicircular Aperture Coupled Hemispherical Dielectric Resonator Antenna

Journal: International Journal of Advances in Microwave Technology (Vol.1, No. 2)

Publication Date:

Authors : ; ; ; ;

Page : 53-57

Keywords : Aperture coupling; hemispherical dielectric resonator antenna; microstrip line; semicircular slot; WiMAX application;

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Abstract

A compact, low profile semicircular aperture coupled hemispherical dielectric resonator antenna (HDRA) is presented in this paper. The HDRA is fed by a microstrip line through a semicircular aperture in the ground plane. The proposed antenna resonates at 3.7 GHz in TE111 mode with an impedance bandwidth of 10.8% (3.54?3.94 GHz), which can be effectively used for WiMAX applications. The maximum gain obtained is 5.4 dBi at 3.8 GHz. The experimental results show good agreement with the simulated results. A detailed parametric study has been conducted to realize the effects of slot radius, slot width and slot position to improve the coupling of the designed antenna.

Last modified: 2017-01-09 20:57:59