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Circularly polarized two‐layer conical DRA based on metamaterial
Author(s) -
Gharsallah Hamed,
Osman Lotfi,
Latrach Lassaad
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30650
Subject(s) - metamaterial , optics , dielectric resonator antenna , hfss , conical surface , dielectric , materials science , metamaterial antenna , circular polarization , coaxial antenna , physics , microstrip antenna , optoelectronics , antenna (radio) , resonator , telecommunications , microstrip , engineering , composite material
In 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 λ rand 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 ɛ 2 and the radius a 2 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.