Title :
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
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;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/IMOC.2013.6646528
