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.
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.
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