Title :
Plane wave scattering from frequency-selective surfaces by the finite-element method
Author :
Bardi, Istvan ; Remski, Richard ; Perry, David ; Cendes, Zoltan
Author_Institution :
Ansoft Corp., Pittsburgh, PA, USA
fDate :
3/1/2002 12:00:00 AM
Abstract :
This paper presents the application of the finite-element method (FEM) to the analysis of reflection and transmission coefficients, effective permittivity, and permeability of periodic structures to incident plane waves. The problem domain is reduced to a unit cell by using linked boundary conditions (LBCs) and the accuracy and efficiency of the procedure is improved by using the scattered field formulation and perfectly matched layers (PMLs). Examples of the analysis of frequency-selective surfaces (FSSs) derived from photonic bandgap materials (PBGs) and composite materials with negative effective permeability and permittivity are presented
Keywords :
composite materials; electromagnetic wave scattering; finite element analysis; frequency selective surfaces; magnetic permeability; periodic structures; permittivity; photonic band gap; composite material; effective permeability; effective permittivity; finite element method; frequency-selective surface; linked boundary conditions; perfectly matched layer; periodic structure; photonic bandgap material; plane wave scattering; reflection coefficient; transmission coefficient; Composite materials; Electromagnetic scattering; Finite element methods; Frequency; Particle scattering; Periodic structures; Permeability; Permittivity; Reflection; Surface waves;
Journal_Title :
Magnetics, IEEE Transactions on
