Title :
A new DG-FETD implicit time stepping scheme based on E and B fields for sequentially ordered systems
Author :
Qingtao Sun ; Qing Huo Liu
Author_Institution :
Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA
Abstract :
Based on curl-conforming basis functions and divergence-conforming basis functions for E and B fields, a new non-interative implicit time stepping scheme is proposed to efficiently solve sequentially ordered systems. The new scheme features a reordering of the linear system and a block LDU (lower-diagonal-upper) decomposition, thereby reducing the computational complexity of the original system.
Keywords :
Galerkin method; computational complexity; computational electromagnetics; electromagnetic fields; finite element analysis; linear systems; time-domain analysis; DG-FETD; computational complexity; curl-conforming basis functions; discontinuous Galerkin finite element time-domain method; divergence-conforming basis functions; linear system; lower-diagonal-upper decomposition; noninterative implicit time stepping scheme; sequentially ordered systems; Computational modeling; Finite difference methods; Linear systems; Matrix decomposition; Method of moments; Time-domain analysis; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905451
