Title :
A general-purpose simulator for metamaterials with three-dimensional elements
Author :
Mittra, Raj ; Pelletti, Chiara ; Arya, Ravi Kumar ; Dong, T. ; Bianconi, Giacomo
Author_Institution :
EMC Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
In this paper we present two simulation techniques for modeling periodic structures with three-dimensional elements in general. The first of these is based on the Method of Moments (MoM) and is suitable for thin-wire structures, which could be either PEC or plasmonic, e.g., nanowires at optical wavelengths. The second is a Finite Difference Time Domain (FDTD)-based approach, which is well suited for handling arbitrary, inhomogeneous, three-dimensional periodic structures. Neither of the two approaches make use of the “traditional” Periodic Boundary Conditions (PBCs), and are free from the difficulties encountered in the application of the PBC, as for instance slowness in convergence (MoM) and instabilities (FDTD).
Keywords :
convergence of numerical methods; finite difference time-domain analysis; inhomogeneous media; metamaterials; method of moments; FDTD-based approach; MoM; PBC; PEC structures; finite difference time domain-based approach; general-purpose simulator; inhomogeneous three-dimensional periodic structure handling; metamaterials; method of moments; periodic boundary conditions; periodic structure modeling; plasmonic structures; thin-wire structures; three-dimensional elements; Finite difference methods; Finite element analysis; Frequency selective surfaces; Method of moments; Periodic structures; Solid modeling; Time-domain analysis;
Conference_Titel :
Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on
Print_ISBN :
978-1-4673-4939-0
