Abstract
AbstractIn this article, we propose a conical dielectric resonator antenna with metamaterial operating in the C band and excited by a circular polarization. The circular polarization of the antenna is produced by an inclination of 45° on the two environments with a different dielectric constant of the slot excitation. The metamaterial is superimposed on the antenna by and thus allows to increase the gain of 3 dB in all the bandwidth. Simulation results are carried out using Ansoft's HFSS software. The parametric study of the antenna has been performed by varying the permittivity ɛ2 and the radius a2 in a first step and by adding the metamaterial in a second step. The obtained bandwidths of the conical dielectric resonator antenna without and with metamaterial are 1.14 GHz and 1.07 GHz, respectively, with a corresponding increase in gain of about 3 dB.
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