US 12,425,095 B2
Passive MIMO device
Mohsen Farmahini Farahani, Encinitas, CA (US); Lida Akhoondzadehasl, Sunnyvale, CA (US); and Allen Minh-Triet Tran, Rancho Santa Fe, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 23, 2022, as Appl. No. 17/934,886.
Prior Publication US 2024/0106520 A1, Mar. 28, 2024
Int. Cl. H04B 7/145 (2006.01); H01Q 1/50 (2006.01); H01Q 3/40 (2006.01); H01Q 19/06 (2006.01); H01Q 21/06 (2006.01)
CPC H04B 7/145 (2013.01) [H01Q 1/50 (2013.01); H01Q 3/40 (2013.01); H01Q 19/06 (2013.01); H01Q 21/061 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless communication apparatus, comprising:
a first radio frequency (RF) transmission line having a first end terminated with a quarter wavelength grounded transmission line;
a first array of antennas including a plurality of antenna elements;
a switch array including a corresponding switch for each antenna element of the plurality of antenna elements of the first array of antennas, wherein the corresponding switch for each antenna element is configurable to selectively connect each antenna element to the first RF transmission line, wherein an initial switch of the switch array is coupled to the first RF transmission line at a quarter wavelength distance from the first end of the first RF transmission line, and wherein each switch of the switch array is coupled to the first RF transmission line at an integer multiple of a half wavelength distance from a corresponding adjacent switch of the switch array along the first RF transmission line; and
one or more lens elements configured to modify wireless inputs signals to the first array of antennas and to modify wireless output signals from the first array of antennas.