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Enhanced wideband performance of coupled frequency selective surfaces using metaheuristics
Author(s) -
Lins H. W. C.,
Barreto E. L. F.,
d'Assunção A. G.
Publication year - 2013
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27451
Subject(s) - wideband , bandwidth (computing) , particle swarm optimization , microwave , tunable metamaterials , selective surface , genetic algorithm , electronic engineering , dipole , acoustics , computer science , materials science , optics , engineering , algorithm , physics , mathematical optimization , mathematics , telecommunications , metamaterial , quantum mechanics
This article presents a bandwidth optimization study of two coupled frequency selective surfaces (FSS).The optimization is performed in two steps. In the first step, a genetic algorithm is developed to synthesize two single FSS crossed dipoles with resonant frequencies equal to 9.5 and 10.5 GHz, to be used in a broadside coupled geometry, separated by an air gap. In the second step, a particle swarm optimization algorithm is developed to determine the optimal value for the air gap length to optimize the geometry bandwidth. Prototypes are fabricated and measured to validate the optimization study results for the two coupled FSS structure. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:711–715, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27451