Accurate characterization of 3D diffraction gratings using time domain discontinuous Galerkin method with exact absorbing boundary conditions

Abstract
Exact absorbing and periodic boundary conditions allow to truncate grating problems' infinite physical domains without introducing any errors. This work presents exact absorbing boundary conditions for 3D diffraction gratings and describes their discretization within a high-order time-domain discontinuous Galerkin finite element method (TD-DG-FEM). The error introduced by the boundary condition discretization matches that of the TD-DG-FEM; this results in an optimal solver in terms of accuracy and computation time. Numerical results demonstrate the superiority of this solver over TD-DG-FEM with perfectly matched layers (PML)-based domain truncation. © 2013 IEEE.

Citation
Sirenko, K., Bagci, H., & Sirenko, Y. (2013). Accurate characterization of 3D diffraction gratings using time domain discontinuous Galerkin method with exact absorbing boundary conditions. 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI). doi:10.1109/aps.2013.6710676

Publisher
Institute of Electrical and Electronics Engineers (IEEE)

Journal
2013 IEEE Antennas and Propagation Society International Symposium (APSURSI)

Conference/Event Name
2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013

DOI
10.1109/APS.2013.6710676

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