Abstract
In this letter, we develop a prism-based discontinuous Galerkin time-domain (DGTD) algorithm with simplified periodic boundary conditions (PBCs) to analyze infinite doubly periodic frequency selective surfaces (FSS). Most FSS structures contain patterned planar conductive layers and supporting dielectric layers. These layers are very thin compared to the wavelength. Therefore, general tetrahedral discretization of space will unnecessarily increase the number of mesh elements, as well as the number of unknowns. Instead, we propose using prismatic elements, which are more optimal for planar structures, resulting in less unknowns, less memory usage, and higher efficiency. The accuracy of the proposed prism based DGTD method is verified by numerical examples compared with commercial software packages. Moreover, the CPU and memory costs are also compared, demonstrating clear advantages of the proposed prism based DGTD method.
Recommended Citation
W. Mai et al., "Prism-Based DGTD With A Simplified Periodic Boundary Condition To Analyze FSS With D2n Symmetry In A Rectangular Array Under Normal Incidence," IEEE Antennas and Wireless Propagation Letters, vol. 18, no. 4, pp. 771 - 775, article no. 8656552, Institute of Electrical and Electronics Engineers, Apr 2019.
The definitive version is available at https://doi.org/10.1109/LAWP.2019.2902340
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Discontinuous Galerkin time domain (DGTD); frequency selective surface (FSS); metamaterial; prism basis
International Standard Serial Number (ISSN)
1536-1225
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Apr 2019
Comments
Center for Nanoscale Science and Technology, Grant B07046