US 12,469,980 B2
Liquid crystal polarization antenna
Jungsuek Oh, Seoul (KR); and Byeongju Moon, Seoul (KR)
Assigned to SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Filed by SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Filed on Jul. 18, 2023, as Appl. No. 18/354,154.
Claims priority of application No. 10-2022-0088955 (KR), filed on Jul. 19, 2022; and application No. 10-2023-0063274 (KR), filed on May 16, 2023.
Prior Publication US 2024/0030618 A1, Jan. 25, 2024
Int. Cl. H01Q 15/24 (2006.01); H01Q 1/38 (2006.01); H01Q 1/50 (2006.01); H01Q 3/38 (2006.01)
CPC H01Q 15/242 (2013.01) [H01Q 1/38 (2013.01); H01Q 1/50 (2013.01); H01Q 3/38 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A liquid crystal polarization antenna, comprising: a plurality of unit cells arranged two-dimensionally in a first direction and a second direction perpendicular to the first direction; and a conductive line configured to electrically connect to each other the plurality of unit cells arranged in the first direction of the plurality of unit cells, each of unit cells comprising, a first electrode; a liquid crystal layer disposed on the first electrode; and a second electrode disposed on the liquid crystal layer and comprising a first conductive ring that has a first gap and a second conductive ring that has a second gap, wherein the conductive line comprises a first conductive line configured to electrically connect the first conductive ring to the second conductive ring in a same unit cell of the plurality of unit cells and a second conductive line configured to electrically connect the first conductive ring to the second conductive ring in different unit cells of the plurality of unit cells, and the second electrode is symmetrically shaped with respect to the first direction and asymmetrically shaped with respect to the second direction to rotate a component of an incident wave that is parallel to the first direction by 180 degrees.