Doctorat
Permanent URI for this collectionhttps://dspace.univ-boumerdes.dz/handle/123456789/59
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Item High performance printed dual-band bandpass filters for wireless communications(Université M'Hamed Bougara : Institut de génie électrique et électronique, 2021) Lahmissi, Ahmed; Challal, Mouloud(Directeur de thèse)This thesis provides a study and development planar microwave filters. The difficulties of using planar technology for microwave filters are discussed and the main design problems are presented with some solutions especially for the multi-passband filters. Some new dual passband filters are designed in this thesis. The suggested designs were developed and validated experimentally. The suggested dual-band filters are also published in international articles and journalsItem Microstrip bandpass filters analysis and design for UWB applications(2020) Louazene, Hassiba; Challal, Mouloud(Directeur de thèse)This thesis focuses on the analysis and design of a novel structures of microstrip bandpass filter for UWB applications. This work is divided into two parts: In the first part, three novel topologies of microstrip (UWB) bandpass filters (BPFs) are esigned including two with the use of the defect in the ground plane technique (known by DGS: Defected Ground Structure). For the second part, three different (UWB) passband filter structures with notches are also designed and presented. The easured and simulation results have shown good agreement which validate the different proposed structures and the adopted design procedures
