A NEW 2D NON-SPURIOUS DISCONTINUOUS GALERKIN FINITE ELEMENT TIME DOMAIN (DG-FETD) METHOD FOR MAXWELL'S EQUATIONS

A new discontinuous Galerkin Finite Element Time Domain (DG-FETD) method for Maxwell's equations is developed. It can suppress spurious modes using basis functions based on polynomials with the same order of interpolation for electric field intensity E and magnetic flux density B. Compared to F...

Full description

Saved in:
Bibliographic Details
Published in:Electromagnetic waves (Cambridge, Mass.) Mass.), 2013-01, Vol.143, p.385-404
Main Authors: Ren, Qiang, Tobon, Luis E, Liu, Qing Huo
Format: Article
Language:English
Subjects:
Comparative analysis
Electric fields
Magnetic fields
Methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new discontinuous Galerkin Finite Element Time Domain (DG-FETD) method for Maxwell's equations is developed. It can suppress spurious modes using basis functions based on polynomials with the same order of interpolation for electric field intensity E and magnetic flux density B. Compared to FETD based on EH scheme, which requires different orders of interpolation polynomials for electric and magnetic field intensities, this method uses fewer unknowns and reduces the computation load. The discontinuous Galerkin method is employed to implement domain decomposition for the EB scheme based FETD. In addition, a well-posed time-domain perfectly matched layer (PML) is extended to the EB scheme to simulate the unbounded problem. Leap frog method is utilized for explicit time stepping. Numerical results demonstrate that the above proposed methods are effective and efficient for 2D time domain TMz multi-domain problems.
ISSN:1559-8985
1070-4698
1559-8985
DOI:10.2528/PIER13100901