Abstract: A metamaterial structure including at least one basic unit including a mounting made of a dielectric material. The mounting has an upper surface and a lower surface. Each basic unit includes an electrically conductive unit arranged on the upper surface of the mounting and including: a first C-shaped conductive element including first and second ends; a second C-shaped conductive element including third and fourth ends, the first and second conductive elements being arranged relative to one another such that the first and third ends are opposite one another and separated by a first space, and the second and fourth ends are opposite one another and separated by a second space; and a connector configured so as to connect the first end to the fourth end.

Abstract: The present invention relates to a miniaturized patch antenna assembly in UHF frequency band. The invention is notably useful in RFID applications. The patch antenna assembly includes a multilayered dielectric substrate including at least a top layer, a middle layer and a bottom layer, an electrically conductive patch structure on the upper surface of the top layer, the patch structure having a center point located at the center of patch structure surface and a feeding point electrically coupled to a feed line, a ground plane on the lower surface of the bottom layer. The assembly can include a slot etched in the patch structure, the slot surrounding the center point of the patch structure. This slot aims to concentrate the surface current at the center of the patch structure, which allows reducing its size.

Abstract: A metamaterial structure including at least one basic unit including a mounting made of a dielectric material. The mounting has an upper surface and a lower surface. Each basic unit includes an electrically conductive unit arranged on the upper surface of the mounting and including: a first C-shaped conductive element including first and second ends; a second C-shaped conductive element including third and fourth ends, the first and second conductive elements being arranged relative to one another such that the first and third ends are opposite one another and separated by a first space, and the second and fourth ends are opposite one another and separated by a second space; and a connector configured so as to connect the first end to the fourth end.