GEOMETRY BASED PRECONDITIONER FOR RADIATION PROBLEMS INVOLVING WIRE AND SURFACE BASIS FUNCTIONS | Zendy

M. G. Araújo | Zendy; J. M. Bértolo | Zendy; F. Obelleiro | Zendy; J.L. Rodríguez | Zendy; J. M. Taboada | Zendy; L. Landesa | Zendy

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GEOMETRY BASED PRECONDITIONER FOR RADIATION PROBLEMS INVOLVING WIRE AND SURFACE BASIS FUNCTIONS

Author(s) -

M. G. Araújo,

J. M. Bértolo,

F. Obelleiro,

J.L. Rodríguez,

J. M. Taboada,

L. Landesa

Publication year - 2009

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier09042104

Subject(s) - preconditioner , basis (linear algebra) , surface (topology) , basis function , geometry , materials science , mathematics , mathematical analysis , mathematical optimization , iterative method

An innovative preconditioner has been developed in this work. It signiflcantly improves the convergence of the iterative solvers applied to electromagnetic radiation problems by a renormalization of the matrix equation. The preconditioner balances the disparities in terms of magnitude and units caused by the strong self-coupling of the antennas, the non-uniformity of the meshes and also by the coexistence of wire and surface basis functions. It can be easily integrated into difierent electromagnetic solvers with a negligible impact on the computational cost on account of its simple implementation.

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