US 12,456,818 B2
Antenna and beam forming method
Koya Takata, Tokyo (JP); Kenji Wakafuji, Tokyo (JP); and Fujio Okumura, Kanagawa (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 18/274,676
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Feb. 3, 2022, PCT No. PCT/JP2022/004276
§ 371(c)(1), (2) Date Jul. 27, 2023,
PCT Pub. No. WO2022/209276, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 2021-056223 (JP), filed on Mar. 29, 2021.
Prior Publication US 2024/0088569 A1, Mar. 14, 2024
Int. Cl. H01Q 15/02 (2006.01); H01Q 3/44 (2006.01)
CPC H01Q 15/02 (2013.01) [H01Q 3/44 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An antenna comprising:
a metasurface having an opening part that receives electromagnetic waves; and
a MEMS mechanism configured to change a shape of the opening part by operating a moveable member with respect to the opening part of the metasurface,
wherein the moveable member has a cantilever provided in the opening part of the metasurface so as to cover at least a part of the opening part, and
the MEMS mechanism is configured to change an aperture shape of the opening part by sliding the cantilever, thereby changing resonance conditions of the moveable member and the opening part.