Title :
Preconditioning techniques in the analysis of finite metamaterial slabs
Author :
Ubeda, Eduard ; Rius, Juan M. ; Romeu, Jordi
Author_Institution :
Signal Theor. & Commun. Dept., Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
In the method of moments (MoM) electric field integral equation (EFIE) analysis of slabs of metamaterials, we show that a left-preconditioning scheme by blocks gathering interactions between basis functions belonging to each basic cell of the metamaterial reaches convergence in less iterations and with less computational time than a left-preconditioner based on discarding interactions between basis functions beyond a given distance.
Keywords :
convergence of numerical methods; electric field integral equations; iterative methods; metamaterials; method of moments; EFIE analysis; MoM; basis function; computational time; convergence method; electric field integral equation; finite metamaterial slab; iteration method; method of moment; preconditioning technique; Boundary element methods; Convergence; Integral equations; Iterative algorithms; Metamaterials; Moment methods; Resonance; Robustness; Slabs; Sparse matrices; Electromagnetic scattering; method of moments (MoM); numerical analysis; preconditioning;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.861508
