Anisotropic metamaterial gain-enhancing lens for antenna applications
AssigneesThe Penn State Research Foundation, Lockheed Martin Corporation
InventorsDouglas H. Werner, Erik Lier, Bonnie G. Martin, Jeremiah P. Turpin, Qi Wu
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Abstract
Examples of the present invention include metamaterials, including metamaterial lenses, having material properties that approximate the behavior of a material with low (0<n<1) effective index of refraction. Metamaterials may be designed and tuned using dispersion engineering to create a relatively wide-band low-index region. A low-index metamaterial lens created highly collimated beams in the far-field from a low-directivity antenna feed.
Claims14
An apparatus, the apparatus being a metamaterial lens having an operating frequency,
- the metamaterial lens having lens faces, the lens faces being planar, parallel, and spaced apart by a lens thickness,
- the metamaterial lens including split-ring resonators arranged in resonator arrays, the resonator arrays being parallel to the lens faces,
- the metamaterial lens further including end-loaded dipoles arranged in end-loaded dipole arrays, the end-loaded dipole arrays being perpendicular to the lens faces.
An apparatus, the apparatus comprising a metamaterial lens having a pair of lens faces, the lens faces being planar, spaced apart, and parallel to each other, the metamaterial lens including:
- a first array of dual-split ring resonators, supported by a first dielectric substrate disposed parallel to the lens faces;
- a first array of end-loaded dipoles, supported by a second dielectric substrate disposed perpendicular to the lens faces;
- and
- a second array of end-loaded dipoles, disposed on a third dielectric substrate disposed perpendicular to both the first and second dielectric substrates.
Dependencies are inferred from the claim text.