Iterative method of moments solution of problems involving electrically large and concave geometries

Author

Heldring, Alex ; Rius, J.M. ; Ubeda, Eduard

Author_Institution

Dept. of Signal Process. & Telecommun., Univ. Politec. de Catalunya, Barcelona, Spain

fYear

2013

fDate

9-13 Sept. 2013

Firstpage

266

Lastpage

269

Abstract

This paper presents a study of the scaling with frequency (computational complexity) of preconditioned iterative solution, using the Multilevel Fast Multipole Method, of a class of radiation and scattering problems that exhibits particularly slow convergence: problems involving electrically large, open and concave geometries. A comparison is presented between a well-known state of the art preconditioner (ILU) and a recently introduced preconditioning method, the Multiscale Compressed Block Decomposition.

Keywords

computational complexity; computational electromagnetics; electromagnetic wave scattering; iterative methods; method of moments; MoM; computational complexity; concave geometries; electrically large geometries; iterative method of moments solution; multilevel fast multipole method; open geometries; preconditioned iterative solution; radiation problems; scattering problems; Accuracy; Complexity theory; Convergence; Electron tubes; Geometry; Iterative methods; Matrix decomposition;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics in Advanced Applications (ICEAA), 2013 International Conference on

Conference_Location

Torino

Print_ISBN

978-1-4673-5705-0

Type

conf

DOI

10.1109/ICEAA.2013.6632235

Filename

6632235