US 12,249,764 B2
Transparent electromagnetic wave focusing device
Chin-Hsien Wu, Hsinchu (TW); Wei-Tung Yang, Hsinchu (TW); and Tsun-Che Huang, Hsinchu (TW)
Assigned to WISTRON NEWEB CORPORATION, Hsinchu (TW)
Filed by WISTRON NEWEB CORPORATION, Hsinchu (TW)
Filed on Mar. 9, 2023, as Appl. No. 18/180,981.
Claims priority of application No. 111130680 (TW), filed on Aug. 16, 2022.
Prior Publication US 2024/0063549 A1, Feb. 22, 2024
Int. Cl. H01Q 15/10 (2006.01); H01Q 15/00 (2006.01); H01Q 19/06 (2006.01)
CPC H01Q 15/10 (2013.01) [H01Q 15/0086 (2013.01); H01Q 19/062 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A transparent electromagnetic wave focusing device, comprising:
a plurality of metamaterial unit cells arranged to form a metamaterial array plate, each metamaterial unit cell including a plurality of metal layers and a plurality of transparent substrates stacked alternately, and wherein each of the metal layers has a comb-tooth pattern, and the plurality of metamaterial unit cells correspond to a plurality of comb-tooth pattern combinations, respectively;
wherein the metamaterial array plate has an incident surface and an exit surface opposite to each other, and for an incident electromagnetic wave with a predetermined operating frequency band incident upon the incident surface, the metamaterial unit cells correspond to a plurality of compensation phase differences, such that the incident electromagnetic wave that passes through the exit surface is focused on a reference point; and
wherein the comb-tooth pattern combinations vary with the corresponding compensation phase differences.