Universal Zero Specular Reflection Curves for MetaMaterials
Ting, Choon Boon
Jenn, David C.
MetadataShow full item record
Materials are generally classified in terms of their constitutive parameters, the complex permittivity and permeability , in the frequency domain. These parameters are used to determine the response of materials to electromagnetic (EM) radiation. Materials found in nature have positive real parts for both and . In recent years, researchers have shown that a new class of materials called metamaterials (MTMs), characterized by inclusions of various shapes and materials that are small compared to wavelength, result in an effectively homogeneous medium with the unique properties of negative real and which cause EM waves traveling through the medium to exhibit unusual characteristics. Zero specular reflection layers for four material types such as double positive (DPS), double negative (DNG), epsilon-negative (ENG) and mu-negative (MNG) materials are examined in this thesis. For each defined type of MTM, the transcendental equations are derived and solved numerically to generate curves for zero specular reflection. A MATLAB program was developed to generate universal curves for DPS, DNG, ENG, and MNG materials. The results were discussed and evaluated to determine wave behavior in each type of MTM as well as how they can be used as a matched-surface radar-absorbing material (RAM) for military application. The results were compared to published data.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Doumenis, Christos (Monterey, California. Naval Postgraduate School, 2011-12);The complex permittivity (?) and permeability (?) of a material determines the response of the material to electromagnetic radiation. In many cases, the real part of ? and ? are both positive for materials that can be found ...
Muschek, Richard C. (Monterey, California. Naval Postgraduate School, 1998-03);The first goal of this project was to determine the mechanical properties of countermine boots and protective overboots that are currently available to U.S. soldiers. The second goal of this project was to conduct a ...
Skimmons, Brian E. (Monterey, California. Naval Postgraduate School, 1992-03);The U.S. Navy operates a number of radio receiving and signal collection sites throughout the world. These sites have been modified and upgraded a number of times to incorporate new equipment technology and advance receiving ...