Abstract
We present a fully-integrated and electronically-controlled millimeter-wave beam-scanner based on a reconfigurable meta-surface. The meta-surface consists of a two-dimensional array of sub-wavelength cross-shape structures fabricated on a vanadium dioxide (VO2) film. Joule heating electrodes are integrated with the meta-surface structure to control the temperature of the VO2 layer and its dielectric properties. By controlling the applied voltage to the heating electrodes of each across-shape element, phase of a transmitted millimeter-wave beam through the cross-shape element is controlled and phase front of the transmitted millimeter-wave beam through the meta-surface is modified, accordingly. We demonstrate 44° of continuous beam-scanning at 95 GHz through an electronically-controlled and fully-integrated device platform.