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 87 for “"electromagnetic scattering"”.
-
Modern electromagnetic scattering
We develop a numerically stable algorithm for electromagnetic wave propagation through planar stratified media. This algorithm is implemented in a modern programming language and is suitable for the study of such applications as Anderson localization and perfect lensing. Our algorithm remains …
-
Novel electromagnetic scattering phenomena
Scattering of electromagnetic waves is fundamentally related to the inhomogeneity of a system. This thesis focuses on several theoretical and experimental findings of electromagnetic scattering under contemporary context. These results vary from scattering off real structures and off synthetic …
-
Novel Cladding Designs for Engineering Electromagnetic Scattering
… meta surfaces has revolutionized the field of electromagnetic wave manipulation, offering unprecedented control over wave propagation, reflection, and refraction. These engineered materials, characterized by their unique ability to exhibit properties not found in natural substances, have paved …
-
Parallel QR decomposition for electromagnetic scattering problems
Includes bibliographical references (pages 98-102).
-
Electromagnetic Scattering From a Strongly Turbulent Medium
… When the fluctuation is weak, the single scattering theory is widely used and found to be satisfactory; however, as many practical situations are known to exist, if fluctuations are strong, the multiple scattering effect must be taken into account. In this report, two theoretical models of …
-
Finite difference method for electromagnetic scattering problems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.
-
Electromagnetic scattering simulations using equivalent boundary condition models
… condition models are one approach to simplifying electromagnetic (EM) scattering problems while retaining a high degree of solution accuracy in the domain of interest. These models are successful when the dominant EM characteristics of the scattering body are captured within the model, and they …
-
Electromagnetic scattering and induction models for spheroidal geometries
Electromagnetic scattering from a medium containing randomly distributed discrete dielectric spheroidal inclusions is studied. Also, the broadband magnetoquasistatic solution for the induced magnetic field from a conducting and permeable spheroid under time harmonic excitation is demonstrated. …
-
Development of a frequency-domain electromagnetic scattering measurement system
… scattered fields in the Transient Electromagnetic Scattering Range at the Naval Postgraduate School. The new system employs a stepped- frequency Cw waveform and utilizes an HP-8510B network analyzer as an RF front- end and a coherent receiver. A pair of AEL H1498 antennas was …
-
Finite element electromagnetic scattering: an interactive micro-computer algorithm
… this thesis effort was to develop an interactive electromagnetic scattering algorithm for personal computer use in the analysis and computer aided design (CAD) of scattering structures. Extensive interactive computer aided design type features have been added to a previously developed finite …
-
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 …
-
Electromagnetic scattering model for saline ice covered with frost flowers
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
-
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 …
-
Novel Electromagnetic Scattering Models for Nano-Composites and Nano-Sensor Applications
… have the unique capability of coupling to electromagnetic radiation of wavelengths far larger than their size and confining the coupled energy to the structure’s sub-wavelength vicinity. This unique ability has paved the way for a diverse range of energy harvesting, biological, and chemical …
-
Application of electromagnetic scattering reduction techniques for small unmanned aerial vehicles
… focuses on the development and application of electromagnetic scattering reduction techniques, designs, and materials to small, relatively low-cost Unmanned Aerial Vehicles (UAVs). The application of electromagnetic scattering reduction methodologies to small UAVs poses a unique challenge over …
-
Modelling of Electromagnetic Scattering at Infrared Wavelengths by Pristine Ice Crystals
… bullet rosettes and capped columns. The scattering solution however inthe infrared’s part of the spectrum is a complex problem. There are established methods thathave been used to solve scattering methods such as Mie, T-matrix and Rayleigh theories. Thesemethods are not efficient at …
Page 1 of 5