Fast and accurate solutions of extremely large scattering problems involving three-dimensional canonical and complicated objects

Author

Ergül, Özgür ; Gürel, Levent

Author_Institution

Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey

fYear

2009

fDate

20-23 July 2009

Firstpage

19

Lastpage

23

Abstract

We present fast and accurate solutions of extremely large scattering problems involving three-dimensional metallic objects discretized with hundreds of millions of unknowns. Solutions are performed by the multilevel fast multipole algorithm, which is parallelized efficiently via a hierarchical partition strategy. Various examples involving canonical and complicated objects are presented in order to demonstrate the feasibility of accurately solving large-scale problems on relatively inexpensive computing platforms without resorting to approximation techniques.

Keywords

computational electromagnetics; electromagnetic wave scattering; canonical objects; complicated objects; discretization; extremely large scattering problems; hierarchical partition; large-scale electromagnetics; large-scale problems; multilevel fast multipole algorithm; three-dimensional metallic objects; three-dimensional objects; Acceleration; Computational electromagnetics; Concurrent computing; Electromagnetic scattering; Error correction; Large-scale systems; MLFMA; Near-field radiation pattern; Testing; Tree data structures;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Electromagnetics International Workshop, 2009. CEM 2009

Conference_Location

Izmir

Print_ISBN

978-1-4244-4248-5

Electronic_ISBN

978-1-4244-4250-8

Type

conf

DOI

10.1109/CEM.2009.5228112

Filename

5228112