Title :
Analysis of cylindrical CFS-PML ABC for 2-D finite volume simulations in the frequency domain
Author :
Lima, Ana Paula M. ; Novo, Marcela S.
Author_Institution :
Electr. Eng. Dept., Univ. Fed. da Bahia, Salvador, Brazil
Abstract :
A comparative analysis of two cylindrical complex-frequency-shifted perfectly matched layers (CFS-PML) absorbing boundary condition (ABC) for bi-dimensional (2-D) finite volume (FV) simulations in the frequency domain is presented. We study the impact of CFS-PML parameters on the condition number of the FV system matrix by comparing the performance of two PML loss profiles, viz., polynomial and geometric grading. The discretization error due to FV approximation is also examined. FV results are validated against analytical solution. Results show that both profiles have similar performance in terms of absorption wave and conditioning of the system matrix.
Keywords :
absorbing media; computational electromagnetics; electromagnetic wave absorption; finite volume methods; frequency-domain analysis; geometry; polynomials; 2D finite volume simulations; CFS-PML absorbing boundary condition; CFS-PML parameters; FV approximation; FV simulations; FV system matrix; PML loss profiles; absorption wave; bi-dimensional finite volume; condition number; cylindrical CFS-PML ABC; cylindrical complex-frequency-shifted perfectly matched layers; discretization error; frequency domain; geometric grading; polynomial; system matrix conditioning;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/IMOC.2013.6646529
