Title :
Numerical Model of the Effective Permittivity for Square-Loop Frequency Selective Surfaces
Author :
Rodriguez Barrera, Mario A. ; Carpes, Walter P.
Author_Institution :
Grupo de Concepcao e Analise de Dispositivos, Univ. Fed. de Santa Catarina, Florianopolis, Brazil
Abstract :
This paper presents a model, obtained through numerical simulation and curve fitting, for the dielectric effective permittivity of frequency selective surfaces (FSSs). The numerical model is based on the permittivity and thickness of the dielectric layer supporting the FSS metallic elements, as well as on the period and on a factor dependent on the FSS geometry. The model is developed for square-loop FSS, using a given geometry reported in literature as a reference case. The results from electromagnetic simulations with the finite-element method are used for developing the numerical model.
Keywords :
curve fitting; finite element analysis; frequency selective surfaces; geometry; permittivity; FSS geometry; FSS metallic elements; curve fitting; dielectric effective permittivity; dielectric layer permittivity; dielectric layer thickness; electromagnetic simulations; finite-element method; numerical simulation; square-loop frequency selective surfaces; Dielectrics; Electronic countermeasures; Frequency selective surfaces; Numerical models; Permittivity; Resonant frequency; Effective permittivity; equivalent circuit model (ECM); frequency selective surfaces (FSSs); square loop;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2368782
