US 12,113,295 B2
Flexible multi-beam, multi frequency, wideband RF and digital transceiver architecture for modular metasurface antenna
Zeeshan Zeeshan, Seattle, WA (US); Mohsen Sazegar, Kirkland, WA (US); Maxwell A. Smoot, Seattle, WA (US); Chris Eylander, Redmond, WA (US); Joseph Taylor, Redmond, WA (US); and Nick McCarty, Redmond, WA (US)
Assigned to KYMETA CORPORATION, Redmond, WA (US)
Filed by Kymeta Corporation, Redmond, WA (US)
Filed on Dec. 1, 2022, as Appl. No. 18/072,971.
Claims priority of provisional application 63/285,582, filed on Dec. 3, 2021.
Prior Publication US 2023/0187824 A1, Jun. 15, 2023
Int. Cl. H01Q 3/26 (2006.01); H01Q 15/00 (2006.01); H01Q 21/06 (2006.01)
CPC H01Q 3/2682 (2013.01) [H01Q 15/0086 (2013.01); H01Q 21/065 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna architecture comprising:
a plurality of metasurface antenna tiles, each metasurface antenna tile of the plurality of metasurface antenna tiles having one or more feed ports individually fed when in operation to support one or more independent beams, wherein the plurality of metasurface antenna tiles comprise a plurality of sub-arrays of metasurface antenna tiles;
a plurality of digital back ends (DBEs) coupled to the plurality of metasurface antenna tiles, wherein each DBE of the plurality of DBEs is coupled to one sub-array of the plurality of sub-arrays of metasurface antenna tiles to:
adjust time delays of one or more of received signals arriving from metasurface antenna tiles of the one sub-array of metasurface antenna tiles as part of time delay beamforming and combine the received signals in a digital domain to produce one or more beamformed signals, and
delay transmit signals fed to the plurality of tiles in the digital domain by adjusting time delays of one or more of the transmit signals as part of time delay beamforming,
wherein the time delays applied to received and transmit signals compensate for differences in receive and transmit paths, respectively, and in feed delays for each of the plurality of metasurface antenna tiles.