Publication number: 20210313390
Filed: Apr 1, 2020
Publication Date: Oct 7, 2021
Applicant: Nokia Technologies OY (Espoo)
Inventors: Senad BULJA (Dublin), Dirk WIEGNER (Schwaikheim), Wolfgang TEMPL (Sersheim), Rose F KOPF (Green Brook, NJ)
Application Number: 16/837,717
Abstract: The main idea of the invention is to propose the use of Electro-Active (EA) materials for the realization of Intelligent Surfaces (IS). For this purpose, a basic structure, shown in Fig. 1 is proposed. The proposed solution consists of NxN individual elements (4 x 4 dielectric tiles and 5 x 5 EA tiles in the depicted figure). By activating the EA material, the dielectric tiles become mobile in the x and y directions, resulting in the surface whose dielectric permittivity is a function of the spatial position and, due to the nature of EA materials, controllable. By having a surface whose dielectric permittivity, as a function of the spatial coordinates is controllable, one is able to perform a variety of mathematical operations, including differentiation, integration, convolution and more, as indicated earlier. Furthermore, by properly manipulating the dielectric permittivity as a function of the spatial coordinates one is able to even directly modulate the input signal. This can be done by applying the message signal to the bias lines of the proposed surface of Fig. 1.