METAMATERIAL DEVICES AND METHODS OF USING THE SAME

摘要

Metamaterial devices and methods of using the same are disclosed. According to an aspect , a method comprises illuminating a scene with one or more illumination field patterns; observing the illuminated scene with one or more measurement field patterns; and reconstructing an image of the observed scene using a compressive imaging algorithm; wherein the illumination field patterns and/or the measurement field patterns correspond to radiation patterns of a metamaterial aperture antenna. The metamaterial aperture antenna is a leaky wave antenna on substrate. Therefore a compact imager can be built at low production cost. The imager avoids mechanical scanning and delicate conventional optics , expensive phased -array electronics and allows widespread inconspicuous deployment over a wide range of security scenarios.