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Published byChelsey Seymour Modified over 9 years ago
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TechWatch 2004: Miniaturized antennas based on negative permittivity materials—Lucent Technologies Metamaterial scanning lens antenna systems and methods—The Boeing Company 2003: Metamaterials employing photonic crystal—MIT Methods of fabricating electromagnetic metamaterials—The Boeing Company 2002: Resonant antennas—Lucent Technologies
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miniaturized antennas based on negative permittivity materials An antenna comprises a resonator and a waveguide. The resonator comprises at least one body having a negative effective electrical permittivity or a negative magnetic permeability when a resonance is excited therein by electromagnetic radiation lying in some portion of the microwave spectrum. A termination of the waveguide is situated adjacent the resonator. The resonator is conformed such that at the resonance, there is efficient coupling between the resonator and the waveguide.
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metamaterial scanning lens antenna systems and methods The present invention is directed to systems and methods for radiating radar signals, communication signals, or other similar signals. In one embodiment, a system includes a controller that generates a control signal and an antenna coupled to the controller. The antenna includes a first component that generates at least one wave based on the generated control signal and a metamaterial lens positioned at some predefined focal length from the first component. The metamaterial lens directs the generated at least one wave.
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resonant antennas An apparatus includes an object and one or more sensors located adjacent to or in the object. The object is formed of a material whose dielectric constant or magnetic permeability has a negative real part at microwave-frequencies. The one or more sensors are located adjacent to or in the object and measure an intensity of an electric or a magnetic field therein.
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method of fabricating electromagnetic meta-materials Abstract In one embodiment, a method for fabricating electromagnetic meta-materials includes applying first and second array of electromagnetically reactive patterns to first and second non- conducting surfaces, wherein the first array includes at least one of a split ring resonator pattern, a square split ring resonator pattern, and a swiss roll pattern, and the second array includes a thin parallel wire pattern. The first and second non-conducting surfaces are joined together such that the first and second non- conducting surfaces bearing the first and second arrays of electromagnetically reactive patterns are commonly oriented. Alternately, a method may further include slicing between elements of the first and second arrays of electromagnetically reactive patterns in a plane perpendicular to the first and second surfaces to form a plurality of slices, rotating at least one of the slices, and applying a third array of electromagnetically reactive patterns to a third non-conducting surface.
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metamaterials employing photonic crystals A periodic structure is disclosed that includes an array of point defects within the periodic structure. The array includes point defects in a least two dimensions of the periodic structure. Each point defect permits electromagnetic fields of a first wavelength that is otherwise within a band gap range of the periodic structure to exist in each of the point defects.
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