US 12,469,975 B2
Patch antenna assembly with parasitic patch and capacitive loading elements
Nicolas F. Casazzone, Dix Hills, NY (US); and Charles Burton Swope, Coral Springs, FL (US)
Assigned to Zebra Technologies Corporation, Lincolnshire, IL (US)
Filed by ZEBRA TECHNOLOGIES CORPORATION, Lincolnshire, IL (US)
Filed on Nov. 30, 2022, as Appl. No. 18/072,491.
Prior Publication US 2024/0178566 A1, May 30, 2024
Int. Cl. H01Q 9/04 (2006.01); H01Q 21/06 (2006.01); H01Q 5/378 (2015.01)
CPC H01Q 9/0414 (2013.01) [H01Q 9/0407 (2013.01); H01Q 9/045 (2013.01); H01Q 21/065 (2013.01); H01Q 5/378 (2015.01)] 20 Claims
OG exemplary drawing
 
1. An antenna device comprising:
a substrate layer;
a patch antenna assembly on the substrate layer, configured to contain at least one patch antenna element, wherein
each patch antenna element has a first side of a first length, a second side of a second length, a third side of a first width, and a fourth side of a second width,
each patch antenna element contains a feed insertion cutout in the first side, and
each patch antenna element contains a base cutout in the first side;
a feed point on the substrate layer;
a feed line, configured to have a feed line structure wherein the feed line structure is comprised of at least one feed line length;
a parasitic patch assembly, configured to contain at least one parasitic patch element, with a fifth side of a third length, a sixth side of a fourth length, a seventh side of a third width, and an eighth side of a fourth width, wherein
each parasitic patch element corresponds to a respective patch antenna element,
each parasitic patch element is larger than the respective patch antenna element, and
each parasitic patch element is positioned above the respective patch antenna element;
a capacitive feed element, with sides of a fifth length, a sixth length, a fifth width, and a sixth width configured to be positioned on the feed line between ends of a feed line length and proximate to the respective patch antenna element;
a mounting structure, configured to position the parasitic patch assembly above the patch antenna assembly at a predetermined height; and
a plurality of tuning stubs disposed along the feed line, an impedance transformer, and a strip-line filter module.