US 12,451,955 B2
Method and system for improving multiple-input-multiple-output (MIMO) beam isolation via alternating polarization
Amr Abdelmonem, Northbrook, IL (US)
Assigned to ISCO INTERNATIONAL, LLC, Schaumburg (IL)
Filed by ISCO International, LLC, Schaumburg, IL (US)
Filed on Feb. 28, 2024, as Appl. No. 18/590,532.
Application 18/590,532 is a continuation of application No. 18/315,979, filed on May 11, 2023.
Claims priority of provisional application 63/416,873, filed on Oct. 17, 2022.
Prior Publication US 2024/0204857 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/10 (2017.01)
CPC H04B 7/10 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method, comprising:
forming multiple beams associated with subarrays of an antenna, the antenna being part of a communications system; and
performing different polarization rotations of signals associated with beams of the multiple beams that at least partially overlap so as to reduce interference imposed by those signals on one another by electronically rotating signals associated with a row or column of the subarrays of the antenna differently from signals associated with one or more neighboring rows or columns of the subarrays of the antenna so as to increase beam isolation in a direction of elevation, azimuth or both.