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Analyse et realisation d’antennes patch microbande montees sur substrat de formes cylindriques

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dc.contributor.author Sahnoun, Nadjet
dc.contributor.author Benghalia, Abdelmadjid
dc.contributor.author Denidni, Tayeb Ahmed
dc.date.accessioned 2022-05-24T09:49:33Z
dc.date.available 2022-05-24T09:49:33Z
dc.date.issued 2017-06-08
dc.identifier.uri http://depot.umc.edu.dz/handle/123456789/5708
dc.description.abstract "This work proposes a contribution to studying, designing of the non planar antennas having a wide band for wireless communications. The first part is concerned to study planar antennas such as microstrip antenna (MSA) and dielectric resonator antenna (DRA). The electromagnetic characteristics of both antennas are calculated by the finite difference method in the time domain using the Perfectly Matched Layer (PML) as the boundary conditions and Ansoft HFSS software. The results comparison shows that the RD antenna offer high performance such as high bandwidth and a low quality factor Q. In the second part, two new cylindrical antennas were designed and fabricated for ultra wide band applications (ULB) (a bandwidth of 3.1GHz to 10.6 GHz). The first structure integrates two antennas; one has a UW band for dynamic spectrum sensing and the other has a narrow band for transmission, this antenna has a transmission coefficient less than -20 dB which ensures effective integration. The second structure is an UWB dualpolarized antenna for transmission and reception of signals on two orthogonal polarizations with a good separation between the two polarization ports"
dc.language.iso fr
dc.publisher Université Frères Mentouri - Constantine 1
dc.subject vpolymophismes génétiques
dc.subject maladie thromboembolique veineuse
dc.subject thrombophilie
dc.subject hypperhomocystéinémie
dc.subject C677T de la MTHFR
dc.subject JAK2 - V617F
dc.subject calréticuline
dc.subject hémostase
dc.title Analyse et realisation d’antennes patch microbande montees sur substrat de formes cylindriques
dc.title Applications ULB
dc.type Thesis

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