Electromagnetic modeling and optimization of multilayered cylindrical structures
Abstract
This proposal aims to accurately model electromagnetic scattering from multi-layered cylindrical structures. These structures can be key in assessing the on-site performance of antennas that may be mounted on masts.A full wave analytical model will be developed for the case of an infinitely long cylinder. The proposed model will assume that the cylinder is illuminated by a plane wave incident" on it externally, and the observation point is located in the far field of the cylinder. Concentric layers with various thicknesses" and homogenous dielectric materials will be assumed in the analysis. The core of the structure will be a perfect electric conductor"(PEC).Inputs to the model are: (i) incident plane wave properties (polarization, incidence angle, wavelength), (ii) material prope""rties (permittivity, permeability, conductivity) and (iii) geometric properties (number of layers and thickness of each layer) of th""e layers, (iv)observation point in space. MATLAB programming environment will be used for all code development.The project will in"vestigate more complex structures each year. First year will be dedicated to the model development of multilayered structures with a"rbitrary number of layers. The case where the number of layers is a large number will be investigated, and the code will be develope"d efficiently to handle such cases in a timely fashion. The second year will leverage from the findings of the first year and will focus on optimizing the multilayered structure for desired scattering properties. Parallel programming techniques will be used as nee"ded to accelerate the computations. Bio-inspired optimization techniques, such as the particle swarm optimization will be considered"" as these algorithms render to parallel computing. Finally, grated surfaces will be investigated in the last year where new techniqu"es will be investigated for full wave analysis. Periodic gratings will be assumed and rigorous coupled wave analysis will beextended to cylindrical surfaces for this purpose.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 01, 2017
- Source ID
- N000141712710
Entities
People
- Ozlem Kilic
Organizations
- Office of Naval Research
- The Catholic University of America
- United States Navy