US 12,451,620 B2
Metasurface antenna and metasurface structure for antenna
Gengbo Wu, Kowloon (HK); Junyan Dai, Nanjing (CN); Kam Man Shum, Kowloon (HK); Ka Fai Chan, Kowloon (HK); and Chi Hou Chan, Kowloon (HK)
Assigned to City University of Hong Kong, Kowloon (HK)
Filed by City University of Hong Kong, Kowloon (HK)
Filed on Aug. 15, 2023, as Appl. No. 18/449,871.
Claims priority of provisional application 63/482,342, filed on Jan. 31, 2023.
Prior Publication US 2024/0258717 A1, Aug. 1, 2024
Int. Cl. H01Q 23/00 (2006.01); H01Q 1/44 (2006.01); H01Q 13/10 (2006.01); H01Q 21/00 (2006.01)
CPC H01Q 23/00 (2013.01) [H01Q 1/44 (2013.01); H01Q 13/10 (2013.01); H01Q 21/0087 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A metasurface structure for an antenna, comprising:
a plurality of subwavelength units operable to manipulate or control amplitude, phase,
polarization, frequency, and momentum of electromagnetic waves for radiation;
wherein each of the plurality of subwavelength units respectively comprises:
a first slot formed on or in an electrically conductive layer and operable to radiate electromagnetic waves;
a second slot formed on or in the electrically conductive layer and operable to radiate electromagnetic waves;
a first control arrangement operably coupled with the first slot for facilitating control of operation of the first slot selectively in a radiating state and a non-radiating state; and
a second control arrangement operably coupled with the second slot for facilitating control of operation of the second slot selectively in a radiating state and a non-radiating state;
wherein the first control arrangement and the second control arrangement are each respectively controllable by a controller.