Studying of surface impedance behavior of RIS against incidence and polarization for miniaturized antenna

Hajji, Mohamed; Aguili, Taoufik

doi:10.1109/lapc.2014.6996444

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…The modeling of the structures shown in Figure 4, which correspond to different examples of reflectarrays, is done by the GEC given by Figure 5 [13,17,18,21].…”

Section: Mom Methods Combined To the Generalized Equivalent Circuitmentioning

confidence: 99%

“…The method of moment combined to the Generalized Equivalent Circuit (MoM-GEC) consists in converting an integral or differential equation into a linear system that will be solved using a matrix representation. The unknown functional is expressed as known functions weighted by unknown coefficients [17][18][19][20][21]. As long as the choice of test functions is consistent, the convergence and physical solution can be rapidly reached.…”

Section: Introductionmentioning

confidence: 99%

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Hybridization of Generalized Po and Mom-Gec Method for Electromagnetic Study of Complex Structures: Application to Reflectarrays

Hajji¹,

Aidi²,

Krraoui³

et al. 2016

PIER M

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In this paper, we investigate the diffraction of complex structures applying a new hybridization between generalized PO (Physical Optic) and MoM-GEC method. The proposed approach is developed to speed up convergence, alleviate calculation and then provide a considerable gain in requirements (processing time and memory storage) because it is based on a single test function instead of numerous sinusoidal or polynomial ones. Based on this approach, each metallic pattern is modeled by a current trial function that consists of two parts. The first part is called modal current, and it is decomposed on Hankel functions for modeling metal edges. However, the second part concerns the middle of metallic patterns, and it is modeled by PO method and called generalized PO current. Based on this approach, we study the diffraction of 1D structures, then we generalize our approach to take 2D ones. For validation purpose, we investigate 1D and 2D reflectarrays to prove the new approach's benefits. The obtained results show good accuracy with the method of moments. Moreover, we prove the considerable improvements in CPU time and memory storage achieved by the hybrid approach when studying these structures.

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“…The modeling of the structures shown in Figure 4, which correspond to different examples of reflectarrays, is done by the GEC given by Figure 5 [13,17,18,21].…”

Section: Mom Methods Combined To the Generalized Equivalent Circuitmentioning

confidence: 99%