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Millimeter-wave frequency selective surfaces for reconfigurable antenna applications.

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Kesavan, Arun (2019). Millimeter-wave frequency selective surfaces for reconfigurable antenna applications. Thèse. Québec, Université du Québec, Institut national de la recherche scientifique, Doctorat en télécommunications, 125 p.

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Résumé

In this thesis, I have proposed two new types of millimeter-wave frequency selective surfaces, for shielding and reconfigurable antennas. A novel wideband FSS and a new class of reconfigurable FSS are introduced for shielding as well as mutual coupling reduction in antenna systems and beam-switching applications, respectively. Two beam-switching antennas using cantilever enabled reconfigurable FSS are designed and implemented at the 30 GHz millimeter-wave frequency band. Initially, a wideband FSS for millimeter-wave applications at the 60 GHz band is investigated. The simulated results of the wideband FSS are validated by the free-space measurement of a fabricated FSS panel. Furthermore, the proposed wideband FSS is applied as a mutual-coupling reducing wall in a MIMO system of DRAs. As a second objective, a new class of cantilever enabled FSS with frequency reconfigurability is designed. The method of fabrication and measurement of the FSS are described. For the validation of the cantilever-enabled FSS, panels of the proposed FSS are fabricated and measured. Further, these FSS panels are integrated with a conventional monopole source, to provide a beam-switching antenna in the 30 GHz frequency band. The beam-switching in the azimuth plane of the center source antenna is controlled by the switching of the FSS panels arranged around the antenna. Another antenna using a similar kind of cantilever enabled FSS is demonstrated for dualplane beam-switching application in the millimeter-wave frequency bands. The FSS panels arranged around the conventional DRA are divided both horizontally and vertically to obtain the concept of dual-plane beam-switching.Further, the prototypes of both single and dual-plane beam-switching antennas at 30 GHz are fabricated and measured to obtain the beam-switching radiation patterns.

Type de document: Thèse Thèse
Directeur de mémoire/thèse: Denidni, Tayeb A.
Mots-clés libres: FSS; beam-switching; millimeter-wave; DRA
Centre: Centre Énergie Matériaux Télécommunications
Date de dépôt: 25 juill. 2019 18:06
Dernière modification: 25 juill. 2019 18:06
URI: http://espace.inrs.ca/id/eprint/8452

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