US 11,855,345 B2
Thin metal Vivaldi antenna systems
Robert Gunnels, Homer Glen, IL (US)
Assigned to PCTEL, INC., Bloomingdale, IL (US)
Filed by PCTEL, Inc., Bloomingdale, IL (US)
Filed on Nov. 9, 2021, as Appl. No. 17/522,604.
Prior Publication US 2023/0143858 A1, May 11, 2023
Int. Cl. H01Q 21/24 (2006.01); H01Q 13/08 (2006.01)
CPC H01Q 13/085 (2013.01) [H01Q 21/24 (2013.01)] 7 Claims
OG exemplary drawing
 
2. An antenna system comprising:
a first Vivaldi antenna element positioned in a first plane, the first Vivaldi antenna element including first and second radiating elements and a first slot disposed between the first and second radiating elements;
a first signal feed electrically coupled across the first slot at a first location;
a first conductive strip positioned in a second plane offset from and parallel to the first plane;
a second Vivaldi antenna element positioned in a third plane including third and fourth radiating elements and a second slot disposed between the third and fourth radiating elements;
a second signal feed electrically coupled across the second slot at a second location;
a second conductive strip positioned in a fourth plane offset from and parallel to the third plane,
a first non-conductive support disposed between the first plane and the second plane; and
a second non-conductive support disposed between the third plane and the fourth plane,
wherein the third plane and fourth plane are perpendicular to the first plane and the second plane,
wherein the first conductive strip is positioned in the second plane such that the first conductive strip runs parallel to the first slot,
wherein the second conductive strip is positioned in the fourth plane such that the second conductive strip runs parallel to the second slot,
wherein the first Vivaldi antenna element is coupled to one side of the first non-conductive support and the first conductive strip is coupled to an opposing side of the first non-conductive support,
wherein the second Vivaldi antenna element is coupled to one side of the second non-conductive support and the second conductive strip is coupled to an opposing side of the second non-conductive support,
wherein the first non-conductive support includes a first plurality of through holes and a first notch configured to receive a portion of the second non-conductive support,
wherein the second non-conductive support includes a second plurality of through holes and a second notch configured to receive a portion of the first non-conductive support,
wherein the first signal feed includes a portion positioned in the second plane, coupled to a same side of the first non-conductive support as the first conductive strip, and coupled to the first Vivaldi antenna element through one or more of the first plurality of through holes,
wherein the second signal feed includes a portion positioned in the fourth plane, coupled to a same side of the second non-conductive support as the second conductive strip, and coupled to the second Vivaldi antenna element through one or more of the second plurality of through holes.