Efficient Higher Order Finite Element–Moment Method Modeling of 3-D Radiation and Scattering Problems
نویسندگان
چکیده
A higher order hybrid finite element – method of moments (FEM-MoM) technique for threedimensional analysis and design of radiating and scattering structures is presented. The technique uses generalized parametric hexahedral and quadrilateral elements of arbitrary geometrical orders in conjunction with curland divergence-conforming hierarchical polynomial vector basis functions of arbitrary approximation orders, and the Galerkin testing procedure. It enables very considerable reduction of the number of unknowns when compared to low-order hybrid solutions.
منابع مشابه
A Higher Order B-Splines 1-D Finite Element Analysis of Lossy Dispersive Inhomogeneous Planar Layers
In this paper we propose an accurate and fast numerical method to obtain scattering fields from lossy dispersive inhomogeneous planar layers for both TE and TM polarizations. A new method is introduced to analyze lossy Inhomogeneous Planar Layers. In this method by applying spline based Galerkin’s method of moment to scalar wave equation and imposing boundary conditions we obtain reflection and...
متن کاملTime-Domain Finite-Element Simulation of Three-Dimensional Scattering and Radiation Problems Using Perfectly Matched Layers
An effective algorithm to construct perfectly matched layers (PMLs) for truncating time-domain finite-element meshes used in the simulation of three-dimensional (3-D) open-region electromagnetic scattering and radiation problems is presented. Both totaland scattered-field formulations are described. The proposed algorithm is based on the time-domain finite-element solution of the vector wave eq...
متن کاملEfficient Higher Order Full-Wave Numerical Analysis of 3-D Cloaking Structures
Highly efficient and versatile computational electromagnetic analysis of 3-D transformation-based metamaterial cloaking structures based on a hybridization of a higher order finite element method for discretization of the cloaking region and a higher order method of moments for numerical termination of the computational domain is proposed and demonstrated. The technique allows for an effective ...
متن کاملAdaptive Multiresolution Antenna Modeling Using Hierarchical Mixed-Order Tangential Vector Finite Elements
Hierarchical mixed-order tangential vector finite elements (TVFEs) for tetrahedra are attractive for accurate and efficient finite element or hybrid finite element/boundary integral (FE/BI) simulation of complicated electromagnetic problems. They provide versatility in the geometrical modeling of physical structures, guarantee solutions free of spurious modes, and allow a local increase of reso...
متن کاملHigher Order Electromagnetic Modeling for Wireless Technology Applications
This paper presents our development of novel higher order electromagnetic (EM) modeling techniques for wireless technology applications based on the method of moments (MoM), finite element method (FEM), and physical optics (PO). Modern wireless systems involve electrically large EM structures (antennas, circuits, and components) that are very complex in both geometry and material composition. T...
متن کامل