Performance of cylindrical CFS-PML in the frequency domain: A study of radial CFS-PML in coaxial structures

Author

Lima, Ana Paula M. ; Novo, Marcela S.

Author_Institution

Electr. Eng. Dept., Univ. Fed. da Bahia, Salvador, Brazil

fYear

2013

fDate

4-7 Aug. 2013

Firstpage

1

Lastpage

5

Abstract

A cylindrical complex-frequency-shifted perfectly matched layers (CFS-PML) absorbing boundary condition (ABC) is applied in the bi-dimensional (2-D) finite volume (FV) method. The impact of CFS-PML parameters on the wave absorption, as well as on the condition number of the associated system matrix is examinated by comparing the performance of two PML loss profiles, viz., polynomial and geometric grading. The discretization error due to FV approximation is also studied. FV results are validated against analytical solution. Results show that both profiles have similar performance in terms of absorption wave and conditioning of the associated system matrix.

Keywords

approximation theory; electromagnetic wave absorption; finite volume methods; frequency-domain analysis; matrix algebra; ABC; FV approximation; PML loss profile; absorbing boundary condition; absorption wave; associated system matrix; bidimensional finite volume method; coaxial structure; cylindrical CFS-PML; cylindrical complex-frequency-shifted perfectly matched layer; discretization error; frequency domain; geometric grading; polynomial grading; radial CFS-PML; wave absorption; Absorption; Maxwell equations;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International

Conference_Location

Rio de Janeiro

Type

conf

DOI

10.1109/IMOC.2013.6646528

Filename

6646528