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Auteur Nadjet Sahnoun |
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Affiner la recherche Interroger des sources externesAnalyse et realisation d’antennes patch microbande montees sur substrat de formes cylindriques / Nadjet Sahnoun
Titre : Analyse et realisation d’antennes patch microbande montees sur substrat de formes cylindriques : Applications ULB Type de document : texte imprimé Auteurs : Nadjet Sahnoun, Auteur ; Abdelmadjid Benghalia, Directeur de thèse ; Tayeb A Denidni, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 123 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : vpolymophismes génétiques maladie thromboembolique veineuse thrombophilie hypperhomocystéinémie C677T de la MTHFR JAK2-V617F calréticuline hémostase Microstrip antennas dielectric resonator antennas finite differences
time-domain method (FDTD) ultra-wideband antennas cylindrical antennas هوائيات ذات نطاق دقيق هوائيات ذات رنان عازل طريقة الفروق المحدودة في المجال الزمني
(FDTD) هوائيات ذات نطاق فائق العرض هوائيات اسطوانية"Index. décimale : 621 Electronique Résumé : 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
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/SAH7085.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10516 Analyse et realisation d’antennes patch microbande montees sur substrat de formes cylindriques : Applications ULB [texte imprimé] / Nadjet Sahnoun, Auteur ; Abdelmadjid Benghalia, Directeur de thèse ; Tayeb A Denidni, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2017 . - 123 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : vpolymophismes génétiques maladie thromboembolique veineuse thrombophilie hypperhomocystéinémie C677T de la MTHFR JAK2-V617F calréticuline hémostase Microstrip antennas dielectric resonator antennas finite differences
time-domain method (FDTD) ultra-wideband antennas cylindrical antennas هوائيات ذات نطاق دقيق هوائيات ذات رنان عازل طريقة الفروق المحدودة في المجال الزمني
(FDTD) هوائيات ذات نطاق فائق العرض هوائيات اسطوانية"Index. décimale : 621 Electronique Résumé : 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
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/SAH7085.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10516 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SAH/7085 SAH/7085 Thèse Bibliothèque principale Thèses Disponible
