Patent ID: 9246228
Filing Date: 2016-01-26
CPC Classification: H01Q

Claim Text:
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.