US 12,482,954 B2
Holographic antenna, beam control method, electronic device, and computer readable medium
Jian Zhou, Beijing (CN); Long Wang, Beijing (CN); Yuehua Liu, Beijing (CN); and Feng Qu, Beijing (CN)
Assigned to Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 18/021,586
Filed by Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Mar. 31, 2022, PCT No. PCT/CN2022/084488
§ 371(c)(1), (2) Date Feb. 16, 2023,
PCT Pub. No. WO2023/184376, PCT Pub. Date Oct. 5, 2023.
Prior Publication US 2024/0266752 A1, Aug. 8, 2024
Int. Cl. H01Q 21/06 (2006.01); H01Q 1/50 (2006.01); H01Q 3/24 (2006.01); H01Q 13/10 (2006.01)
CPC H01Q 21/064 (2013.01) [H01Q 1/50 (2013.01); H01Q 3/24 (2013.01); H01Q 13/106 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A holographic antenna, comprising: a dielectric substrate, a radiation layer, a reference electrode layer and a plurality of switching units;
wherein the dielectric substrate comprises a first surface and a second surface opposite to each other; the radiation layer is on the first surface, and the reference electrode layer is on the second surface; a plurality of slit openings are in the radiation layer; the plurality of switching units are in a one-to-one correspondence with the plurality of slit openings, and each of the plurality of switching units is configured to control a switching state of a corresponding slit opening of the plurality of slit openings;
wherein the radiation layer comprises a plurality of microstrip lines, each of the plurality of microstrip lines extends along a first direction, the plurality of microstrip lines are arranged side by side along a second direction perpendicular to the first direction, and every two adjacent microstrip lines are spaced apart from each other, and
each of the plurality of microstrip lines is provided with multiple slit openings, which are arranged side by side along the first direction, and a length direction of each slit opening is perpendicular to the extending direction of the microstrip line;
wherein each of the plurality of microstrip lines has an excitation port and a load port, and a main body portion connected between the excitation port and the load port;
the excitation port extends along the first direction; and
the multiple slit openings are arranged side by side in the main body portion along the first direction; and
wherein in a direction in which the excitation port points towards the load port, a width of the excitation port monotonically increases; and
in a direction in which the load port points towards the excitation port, a width of the load port monotonically increases.