US 11,705,629 B1
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 Sep. 16, 2022, as Appl. No. 17/946,124.
Application 17/946,124 is a continuation of application No. 17/709,738, filed on Mar. 31, 2022, granted, now 11,502,404.
Int. Cl. H04B 1/10 (2006.01); H01Q 3/04 (2006.01); H01Q 15/24 (2006.01); H01Q 3/06 (2006.01); H04L 1/20 (2006.01); H04B 15/00 (2006.01)
CPC H01Q 3/04 (2013.01) [H01Q 3/06 (2013.01); H01Q 15/246 (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 a plurality of 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 of the plurality of rotational positions 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 mitigate or avoid the PIM, wherein the obtaining the measurements comprises performing the measurements within an expected bandwidth of the PIM and outside of a frequency range of other signals.