Multiband composite right and left handed (CRLH) slot antenna
First Claim
Patent Images
1. An antenna device, comprising:
- a substrate having a first surface and a second surface;
a first conductive layer formed on the first surface of the substrate, the first conductive layer defining a plurality of adjoining openings comprising a contiguous slot that is rectilinear in shape and that abuts a coupling gap, a closed end of the slot being adjacent to an antenna feed, the first conductive layer including a top ground and a separated metal plate region that is rectilinear in shape, the metal plate region oriented parallel to an edge of the top ground defining the slot, the metal plate including an edge defining a portion of the slot opposite the parallel edge of the top ground, the coupling gap formed in the top ground and providing a separation between the top ground and the separated metal plate region; and
a second conductive layer formed on the second surface of the substrate, the second conductive layer including a bottom ground;
wherein the first conductive layer defines the contiguous slot, the coupling gap, and the substrate to form a composite right and left handed (CRLH) metamaterial structure.
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Abstract
An antenna device includes a substrate having a first surface and a second surface. A first conductive layer is formed on the first surface of the substrate, the first conductive layer having a perimeter defined by one or more shapes having straight or curved edges. The first conductive layer defines a slot and a coupling gap, and also includes a top ground. The coupling gap separates the top ground from a metal plate region. A second conductive layer is formed on the second surface of the substrate, the second conductive layer including a bottom ground. The slot, coupling gap, first conductive layer, and substrate form a composite right and left handed (CRLH) structure.
22 Citations
28 Claims
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1. An antenna device, comprising:
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a substrate having a first surface and a second surface; a first conductive layer formed on the first surface of the substrate, the first conductive layer defining a plurality of adjoining openings comprising a contiguous slot that is rectilinear in shape and that abuts a coupling gap, a closed end of the slot being adjacent to an antenna feed, the first conductive layer including a top ground and a separated metal plate region that is rectilinear in shape, the metal plate region oriented parallel to an edge of the top ground defining the slot, the metal plate including an edge defining a portion of the slot opposite the parallel edge of the top ground, the coupling gap formed in the top ground and providing a separation between the top ground and the separated metal plate region; and a second conductive layer formed on the second surface of the substrate, the second conductive layer including a bottom ground; wherein the first conductive layer defines the contiguous slot, the coupling gap, and the substrate to form a composite right and left handed (CRLH) metamaterial structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method, comprising:
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forming a substrate having a first surface and a second surface; forming a first conductive layer on a first surface of the substrate, the first conductive layer defining a plurality of adjoining openings comprising a contiguous slot that is rectilinear in shape and that abuts a coupling gap, a closed end of the slot being adjacent to an antenna feed, the first conductive layer including a top ground and a separated metal plate region that is rectilinear in shape, the metal plate region oriented parallel to an edge of the top ground defining the slot, the metal plate including an edge defining a portion of the slot opposite the parallel edge of the top ground, the coupling gap formed in the top ground and providing a separation between the top ground and the separated metal plate region; and forming a second conductive layer on a second surface of the substrate, the second conductive layer including a bottom ground;
wherein the contiguous slot, the coupling gap, the first conductive layer, and the substrate form a composite right and left handed (CRLH) metamaterial structure. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification