Characterization of Switchable Rectangular Ring FSS with Non Coupled Parallel Metallic Strips for Multi Band and Dual Polarized Applications Using WCIP Method

In this paper, a rectangular metallic ring FSS (Frequency Selective Surfaces) with parallel metallic strips for multi band applications are characterized by the WCIP (Wave Concept Iterative Procedure) method. The proposed FSS structures are made of metallic elements that are simultaneously independe...

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Bibliographic Details
Published in:Journal of Microwaves, Optoelectronics and Electromagnetic Applications Optoelectronics and Electromagnetic Applications, 2018-03, Vol.17 (1), p.102-120
Main Authors: Saidi, R., Titaouine, M., Djouimaa, A., Sousa, T. R., Gomes Neto, A., Bencherif, K., Baudrand, H.
Format: Article
Language:English
Subjects:
Electronics
Engineering Sciences
ENGINEERING, ELECTRICAL & ELECTRONIC
enhanced bandwidth
FSS structures
metallic strips
OPTICS
Photonic
PIN diode
rectangular ring
resonant frequency
transmission coefficient
WCIP method
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Summary:In this paper, a rectangular metallic ring FSS (Frequency Selective Surfaces) with parallel metallic strips for multi band applications are characterized by the WCIP (Wave Concept Iterative Procedure) method. The proposed FSS structures are made of metallic elements that are simultaneously independent in the spatial domain and uncoupled in the spectral domain. Thus the FSS multiband behavior can be achieved only by a building process based on independent metallic elements in both domains. The resonant characteristics of the proposed FSS are determined. The structure shows three resonant frequencies when the incident wave is x-polarized and three resonant frequencies when the source is polarized in the orthogonal direction. A variation in the length of the strips and the rectangular ring allows a fine tuning in the FSS resonant frequencies to give raise to tuned bandwidths. The suppression of a resonant frequency can be insured either by the elimination of the responsible metallic strip or by the insertion of a PIN diode switch. Three FSS structures are manufactured and characterized. The FSS bandwidth can be enhanced in both perpendicular FSS exciting source directions by only varying the strips lengths and the ring dimensions to the corresponding resonant frequencies. A good agreement is obtained when the WCIP results are compared with the simulations of COMSOL Multiphysics software and experiment.
ISSN:2179-1074
2179-1074
DOI:10.1590/2179-10742018v17i11057