US 12,438,276 B2
Circularly-polarized antennas with wide scanning ranges
Ahmed A. Sakr, New Cairo (EG)
Assigned to Analog Devices International Unlimited Company, Limerick (IE)
Appl. No. 18/259,729
Filed by Analog Devices International Unlimited Company, Limerick (IE)
PCT Filed Jan. 21, 2022, PCT No. PCT/EP2022/051384
§ 371(c)(1), (2) Date Jun. 28, 2023,
PCT Pub. No. WO2022/161873, PCT Pub. Date Aug. 4, 2022.
Claims priority of provisional application 63/142,212, filed on Jan. 27, 2021.
Prior Publication US 2024/0055765 A1, Feb. 15, 2024
Int. Cl. H01Q 9/04 (2006.01); H01Q 21/06 (2006.01)
CPC H01Q 9/0435 (2013.01) [H01Q 9/045 (2013.01); H01Q 21/065 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna assembly, comprising:
a support structure;
an antenna patch of an electrically conductive material in a first layer over the support structure;
a first via, extending between a first via connection point in a second layer over the support structure and a first via connection point in the antenna patch;
a second via, extending between a second via connection point in the second layer over the support structure and a second via connection point in the antenna patch;
a first opening in the electrically conductive material of the antenna patch, partially enclosing the first via connection point in the antenna patch so that a first portion of the electrically conductive material of the antenna patch is between a portion of the electrically conductive material of the antenna patch partially within the first opening and a portion of the electrically conductive material of the antenna patch outside the first opening;
a second opening in the electrically conductive material of the antenna patch, partially enclosing the second via connection point in the antenna patch so that a second portion of the electrically conductive material of the antenna patch is between a portion of the electrically conductive material of the antenna patch partially within the second opening and a portion of the electrically conductive material of the antenna patch outside the second opening; and
a transmission line in the first layer over the support structure, wherein the transmission line is at a distance to, and partially encloses, the antenna patch,
wherein the first portion of the electrically conductive material of the antenna patch is substantially perpendicular to the second portion of the electrically conductive material of the antenna patch.