Titre :	Contribution à l'étude d'antennes miniatures multi-bandes.
Type de document :	texte imprimé
Auteurs :	Meriem Harbadji, Auteur ; Amel Boufrioua, Directeur de thèse
Editeur :	جامعة الإخوة منتوري قسنطينة
Année de publication :	2018
Importance :	103 f.
Format :	30 cm.
Note générale :	Doctorat 3éme CYCLE LMD. 2 copies imprimées disponibles
Langues :	Français (fre)
Catégories :	Français - Anglais Electronique
Tags :	Electronique: Hyperfréquences et télécommunications  Antenne miniature multi-bande  méthode des différences finies (FDTD)  insertion des fentes  la géométrie fractale  systèmes sans fils  Miniature Multiband Antenna  Finite Difference Method (FDTD)  Slot Insertion  Fractal shapes  Wireless Systems  الهوائيات المصغرة  المتعددة النطاق  الفروق المحدودة في المجال الزمني  FDTDفتحة  الأشكال الكسورية  الأنظمة اللاسلكية
Index. décimale :	621 Electronique
Résumé :	The work of this thesis is part of the continuity of research on antennas both miniature and multi-band. The first part is devoted to the theoretical study of the antennas that apply in the field of telecommunications, different techniques of miniaturization and multi-band technology. Turning to the description of the finite difference method in the FDTD time domain, this method and two other software programs (the Ansoft HFSS and the CST Microwave Studio) are used to calculate the electromagnetic characteristics and to study the effects of certain parameters on the performance of planar rectangular monopole antennas with a slot and two slots. The second area of research focuses on the development of original miniature antennas that can meet the needs of today's wireless systems based on slot insertion and the use of fractal shapes to reduce the size of antenna. The first structure is an antenna with ground plane slots that operates in two bands at 2.4 GHz (WLAN) and 3.75 GHz (WiMAX). The second flower-shaped fractal antenna with a defective ground plane provides three 2.4 GHz (Bluetooth), 3.6 GHz (WiMAX) and 5.8 GHz (WLAN) resonance frequencies.
Note de contenu :	Annexe.
Diplôme :	Doctorat
En ligne :	../theses/electronique/HAR7413.pdf
Format de la ressource électronique :	pdf
Permalink :	index.php?lvl=notice_display&id=11065

Contribution à l'étude d'antennes miniatures multi-bandes. [texte imprimé] / Meriem Harbadji, Auteur ; Amel Boufrioua, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 103 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
2 copies imprimées disponibles

Langues : Français (fre)

Catégories :	Français - Anglais Electronique
Tags :	Electronique: Hyperfréquences et télécommunications  Antenne miniature multi-bande  méthode des différences finies (FDTD)  insertion des fentes  la géométrie fractale  systèmes sans fils  Miniature Multiband Antenna  Finite Difference Method (FDTD)  Slot Insertion  Fractal shapes  Wireless Systems  الهوائيات المصغرة  المتعددة النطاق  الفروق المحدودة في المجال الزمني  FDTDفتحة  الأشكال الكسورية  الأنظمة اللاسلكية
Index. décimale :	621 Electronique
Résumé :	The work of this thesis is part of the continuity of research on antennas both miniature and multi-band. The first part is devoted to the theoretical study of the antennas that apply in the field of telecommunications, different techniques of miniaturization and multi-band technology. Turning to the description of the finite difference method in the FDTD time domain, this method and two other software programs (the Ansoft HFSS and the CST Microwave Studio) are used to calculate the electromagnetic characteristics and to study the effects of certain parameters on the performance of planar rectangular monopole antennas with a slot and two slots. The second area of research focuses on the development of original miniature antennas that can meet the needs of today's wireless systems based on slot insertion and the use of fractal shapes to reduce the size of antenna. The first structure is an antenna with ground plane slots that operates in two bands at 2.4 GHz (WLAN) and 3.75 GHz (WiMAX). The second flower-shaped fractal antenna with a defective ground plane provides three 2.4 GHz (Bluetooth), 3.6 GHz (WiMAX) and 5.8 GHz (WLAN) resonance frequencies.
Note de contenu :	Annexe.
Diplôme :	Doctorat
En ligne :	../theses/electronique/HAR7413.pdf
Format de la ressource électronique :	pdf
Permalink :	index.php?lvl=notice_display&id=11065