Meander Mesh for Two-Dimensional Wireless Power

This paper proposes and evaluates a two-dimensional wireless transmission sheet with enhanced power transmission characteristics. The sheet consists of three layers: a conducting base layer, a dielectric microwave propagation layer, and a surface layer with a conducting mesh of meander lines. The inductive mesh surface supports evanescent radiation for wireless coupling at any point on the sheet. Radiation is fed into the sheet with a coaxial-waveguide coupler, and evanescent radiation is coupled out of the mesh surface with a capacitive coupler. The transmission characteristics at 2.45GHz evaluated by simulation show improvement of spatial uniformity and independence of coupler orientation compared to previous methods.