Title :
Numerical dispersion in DG-FETD method using vector basis functions on brick elements
Author :
Fu-Gang Hu ; Chao-Fu Wang
Author_Institution :
Temasek Labs., NUS, Singapore, Singapore
Abstract :
A dispersion analysis of the discontinuous Galerkin finite-element time-domain (DG-FETD) method using brick edge elements is presented. The numerical dispersion analysis is performed on the central-flux DG-FETD formula. The dispersion analysis shows that there exist both normal and abnormal modes in the DG-FETD method using brick edge elements. The numerical results of DG-FETD modeling of TEM wave propagation in a parallel waveguide is applied to validate the dispersion analysis.
Keywords :
Galerkin method; computational electromagnetics; electromagnetic wave scattering; finite element analysis; DG-FETD method; brick edge element; central flux DG-FETD formula; discontinuous Galerkin finite element time-domain method; dispersion analysis; numerical dispersion; parallel waveguide; transverse electromagnetic wave propagation; vector basis functions; Dispersion; Equations; Mathematical model; Method of moments; Propagation; Time-domain analysis; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711504
