Multi-function micro-actuated metasurface

Abstract

There is disclosed a reconfigurable metasurface device comprising a planar dielectric substrate and a two dimensional array of substantially planar conductive elements formed on or in the dielectric substrate. The two dimensional array of substantially planar conductive elements consists of alternating rows and columns of first and second substantially planar conductive elements, the first conductive elements each having a first shape with a first width and height, and the second conductive elements each having a second shape with a second width and height. The alternating rows and columns are offset with respect to each other such that centroids of the first shapes are disposed centrally between centroids of the second shapes of each adjacent row, and centroids of the first shapes of one column are disposed centrally between centroids of the second shapes in each adjacent column. The device further comprises a conductive ground plane disposed adjacent and substantially parallel to the two dimensional array of conductive elements so as to define an air gap between the two dimensional array of conductive elements and the conductive ground plane, and a micro-actuator configured to adjust or vary a thickness of the air gap.

Dependencies are inferred from the claim text.