Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 28 for “"electromagnetic scattering problems"”.
-
Parallel QR decomposition for electromagnetic scattering problems
Includes bibliographical references (pages 98-102).
-
Finite difference method for electromagnetic scattering problems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.
-
Fast Inhomogeneous Plane Wave Algorithm for Electromagnetic Scattering Problems
… and successfully applied to solving large-scale electromagnetic scattering problems, both in free space and in the presence of a multilayered medium. A multilevel program has been implemented. The resultant computational complexity and the memory requirement of this implementation scale as O(N …
-
An analog/hybrid computer solution of electromagnetic scattering problems
… techniques that may be used to solve exterior electromagnetic scattering problems was made. Analytical methods, moment methods, subsectional methods, probabilistic methods, integral equation methods, and analog/hybrid computer methods were considered in the study to determine the best method to …
-
Solution of open region electromagnetic scattering problems on hypercube multiprocessors
… multiprocessor computers for the solution of the scattering of electromagnetic fields by bodies situated in an unbounded space. Initially, algorithms based on the method of moments are investigated for coarse-grained MIMD hypercubes as well as fine-grained MIMD and SIMD hypercubes. It is shown …
-
Direct and inverse electromagnetic scattering problems for bi-anisotropic periodic media
This work focuses on electromagnetic direct and inverse scattering problems for bi-anisotropic periodic media in three dimensions. The scattering phenomenon of interest occurs when electromagnetic waves interact with a bi-anisotropic periodic scattering object and is governed by the time-harmonic …
-
Boundary conditions for the solution of open-region electromagnetic scattering problems
When solving open-region radiation problems using finite mathematics techniques, an absorbing boundary condition must be used to truncate the mesh region. A review of analytical absorbing boundary conditions that have been derived previously is presented, and an alternate, analytical-type, …
-
Exact Solutions to Electromagnetic Scattering Problems with Multi-Layered Oblate Spheroidal Geometry
Computational electromagnetic methods (CEM) play a critical role in the design and analysis of complex electromagnetic (EM) systems. CEM, such as the finite element method (FEM), finite-difference time-domain (FDTD), and method of moments (MoM), allow researchers and engineers to solve practical EM …
-
Multilevel Multipole -Free Fast Algorithm for Electromagnetic Scattering Problems in Layered Media
Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
-
A Spectral-Domain Approach to the Numerical-Solution of Electromagnetic. Scattering Problems
Made available in DSpace on 2014-12-10T19:07:04Z (GMT). No. of bitstreams: 1 7309982.pdf: 4135960 bytes, checksum: 1822275f7ae1797e6118b119bd2e3051 (MD5) Previous issue date: 1972
-
A Method for Combining Integral Equation and Asymptotic Techniques for Solving Electromagnetic Scattering Problems
Made available in DSpace on 2014-12-12T20:54:29Z (GMT). No. of bitstreams: 1 7709056.pdf: 5887100 bytes, checksum: 160cf43da3bc0fee986dcd7bd05f3aa4 (MD5) Previous issue date: 1976
-
Using the method of moments and Robin Hood method to solve electromagnetic scattering problems
… was to write a program in C++ that solves electromagnetic scattering problems for arbitrarily shaped scatterers. This was implemented by using a surface integral formulation of Maxwell's equations, which discretizes the surface of the scatterer into thousands of triangles. The method of …
-
Recursive algorithms for computational electromagnetics
… and the space-domain solutions of the electromagnetic scattering problems have been developed. These algorithms have less than $O(N\sp3)$ computational complexities and less than $O(N\sp2)$ memory requirements for arbitrary geometries of scatterers clustered together. Although the …
-
The Performance of Preconditioned Iterative Methods in Computational Electromagnetics
The numerical solution of electromagnetic scattering problems involves the projection of an exact equation onto a finite-dimensional space, and the solution of the resulting matrix equation. By using iterative algorithms, the analysis of scatterers that are an order of magnitude larger electrically …
-
On the Implementation and Performance of Iterative Methods for Computational Electromagnetics (Scattering, Moment-Method, Conjugate-Gradient)
The numerical solution of electromagnetic scattering problems involves approximating an exact equation by a finite-dimensional matrix equation. The use of an iterative algorithm to solve the matrix equation sometimes results in a considerable savings in computer memory requirements. For a fixed …
-
An investigation of the current source-function technique for solving problems of electromagnetic scattering
… of the CSF technique for three-dimensional electromagnetic scattering problems with time-dependent incident fields by treating all fields and currents as Schwartz distributions, (b) the demonstration of a method for finding solutions of the homogeneous finite part integral equation, and (c) …
-
Numerical Methods for Solving the Problem of Electromagnetic Scattering From Large Bodies
… has been widely used to solve a variety of electromagnetic scattering problems. However, the size of the scatterers that can be analyzed by using MoM is limited to only a few wavelengths due to the storage requirements in the computer. In this report, two approaches that allow one to …
-
Fast algorithms for solving integral equations of electromagnetic wave scattering
Computational electromagnetics plays an important role in the study of wave scattering and radiation from large and complex objects. This dissertation develops fast numerical algorithms for solving two-dimensional and three-dimensional integral equations of electromagnetic wave scattering. They …
-
Computational electromagnetics for microstrip and MEMS structures
… of the force as a series of traditional 2D or 3D electromagnetic scattering problems, which are formulated with integral equations and then solved using the method of moments. We demonstrate that this quantum electrodynamics phenomenon can be studied using the knowledge of classical …
-
Efficient Spectral-Element Methods For Acoustic Scattering And Related Problems
… of high-order numerical methods for acoustic and electromagnetic scattering problems, and nonlinear fluid-structure interaction problems.</p> <p>For the scattering problems, two cases are considered: 1) the scattering from a doubly layered periodic structure; and 2) the scattering from doubly …
Page 1 of 2