MUMBAI, India, June 19 -- Intellectual Property India has published a patent application (202421095638 A) filed by Tata Consultancy Services Limited on December 04, 2024, for Ring Loaded Alford-Loop Based Phase Gradient Metasurface Lens For X-Band Applications.
Inventors include Bharadwaj, Vedula Kiran; Chakravarty, Soumya; Chakravarty, Tapas; and Ghatak, Rowdra.
The application for the patent was published on June 05, 2026, under issue no. 23/2026.
Abstract: ABSTRACT RING LOADED ALFORD-LOOP BASED PHASE GRADIENT METASURFACE LENS FOR X-BAND APPLICATIONS Phase gradient metasurface surface plays a crucial role in wireless and satellite communication, radars and remote sensing applications. However, conventional approaches for obtaining high gain of an incident wave suffer a low phase variation. The present disclosure provides a ring loaded alford-loop based phase gradient metasurface lens for x-band applications to achieve 0-360o transmission phase variation. The phase gradient metasurface lens of present disclosure includes a two-dimensional periodic array of a plurality of unit cells arranged as a M*N matrix along x-axis and y-axis. Each of the plurality of unit cells is a four layered slot typed structure with a periodicity. Each of a plurality of unit cell layers in the four layered slot typed structure comprises a modified alford-loop structure with four L-shaped arcs and it is enclosed by an outer square ring. The four layered slot typed structures are identical and separated by an air gap. [
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