US 12,444,854 B2
Polarization shifting devices and systems for interference mitigation
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 Oct. 10, 2023, as Appl. No. 18/483,572.
Application 18/483,572 is a continuation of application No. 18/159,547, filed on Jan. 25, 2023, granted, now 11,817,627.
Application 18/159,547 is a continuation of application No. 17/859,620, filed on Jul. 7, 2022, granted, now 11,594,821, issued on Feb. 28, 2023.
Application 17/859,620 is a continuation of application No. 17/709,724, filed on Mar. 31, 2022, granted, now 11,476,585, issued on Oct. 18, 2022.
Prior Publication US 2024/0047891 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01Q 3/32 (2006.01); H01Q 15/24 (2006.01)
CPC H01Q 15/246 (2013.01) 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a first substrate having first and second transmission lines for coupling to a radio frequency (RF) feed network;
a second substrate having third and fourth transmission lines for respective communicative coupling to elements of a radiating element, the second substrate being rotatable relative to the first substrate to effect polarization adjusting for the radiating element; and
a ground line disposed on the second substrate between the third and fourth transmission lines for isolating polarizations of the radiating element.