US 12,438,268 B2
Method and system for detecting interference and controlling polarization shifting to mitigate the interference
Amr Abdelmonem, Northbrook, IL (US); Anthony Teillet, Trabuco Canyon, CA (US); Richard Loy Smith, Jr., Dallas, TX (US); David E. Urbasic, Saint Charles, IL (US); Richard David Peacock, Marengo, IL (US); Andre F. A Fournier, Marietta, GA (US); and Guenadi Miliavski, Naperville, IL (US)
Assigned to ISCO International, LLC, Schaumburg, IL (US)
Filed by ISCO International, LLC, Schaumburg, IL (US)
Filed on May 31, 2023, as Appl. No. 18/326,431.
Application 18/326,431 is a continuation of application No. 17/946,124, filed on Sep. 16, 2022, granted, now 11,705,629.
Application 17/946,124 is a continuation of application No. 17/709,738, filed on Mar. 31, 2022, granted, now 11,502,404, issued on Nov. 15, 2022.
Prior Publication US 2023/0318174 A1, Oct. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01Q 3/04 (2006.01); H01Q 1/24 (2006.01); H01Q 3/06 (2006.01); H01Q 15/24 (2006.01); H01Q 21/06 (2006.01); H01Q 21/24 (2006.01); H04B 1/10 (2006.01); H04B 15/00 (2006.01); H04L 1/20 (2006.01)
CPC H01Q 3/04 (2013.01) [H01Q 1/246 (2013.01); H01Q 3/06 (2013.01); H01Q 15/246 (2013.01); H01Q 21/062 (2013.01); H01Q 21/245 (2013.01); H04B 1/1027 (2013.01); H04L 1/20 (2013.01); H04B 15/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a detection unit coupled to a plurality of dual-polarized radiating elements of an antenna, the detection unit being configured to receive signals from the plurality of dual-polarized radiating elements; and
a control unit communicatively coupled with the detection unit, the control unit being configured to perform operations, comprising:
obtaining, from the detection unit and for one or more rotational positions occupied by the plurality of dual-polarized radiating elements, measurements relating to signals from the plurality of dual-polarized radiating elements;
based on the measurements, identifying a rotational position for the plurality of dual-polarized radiating elements at which an impact of passive intermodulation (PIM) on a communications system is reduced; and
causing the plurality of dual-polarized radiating elements to occupy the rotational position to address the PIM, wherein the causing involves rotation that results in polarization adjustment for the plurality of dual-polarized radiating elements, and wherein the obtaining the measurements comprises performing the measurements for one or more frequencies that are determined to be within an expected bandwidth of the PIM,
wherein the measurements include first measurements based on first signals received at dipole elements of the plurality of dual-polarized radiating elements having a first polarization and second measurements based on second signals received at dipole elements of the plurality of dual-polarized radiating elements having a second polarization orthogonal to the first polarization.