US 12,290,690 B2
Biostimulator having patch antenna
Souvik Dubey, Woodland Hills, CA (US); Perry Li, Arcadia, CA (US); and Craig E. Mar, Fremont, CA (US)
Assigned to PACESETTER, INC., Sylmar, CA (US)
Filed by PACESETTER, INC, Sylmar, CA (US)
Filed on Feb. 22, 2021, as Appl. No. 17/182,092.
Claims priority of provisional application 62/981,301, filed on Feb. 25, 2020.
Prior Publication US 2021/0260389 A1, Aug. 26, 2021
Int. Cl. A61N 1/372 (2006.01); A61N 1/05 (2006.01); A61N 1/375 (2006.01); H01Q 1/42 (2006.01); H01Q 9/04 (2006.01)
CPC A61N 1/37229 (2013.01) [A61N 1/0573 (2013.01); A61N 1/37512 (2017.08); A61N 1/3754 (2013.01); A61N 1/3756 (2013.01); H01Q 1/42 (2013.01); H01Q 9/0407 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A patch antenna, comprising:
a cylindrical wall having a cylindrical outer surface, wherein the cylindrical wall is a ground plane of the patch antenna, wherein the cylindrical wall includes a cavity having a shape of a cylindrical arc section between the cylindrical outer surface and a recess surface, and a recess perimeter wall laterally surrounding the cavity between the recess surface and the cylindrical outer surface;
a dielectric layer having the shape of the cylindrical arc section and mounted on the recess surface within the cavity such that the recess perimeter wall laterally surrounds a lateral perimeter edge of the dielectric layer, wherein the lateral perimeter edge laterally surrounds an exterior surface of the dielectric layer, and wherein the dielectric layer fills the cavity and the exterior surface of the dielectric layer is flush with the cylindrical outer surface of the cylindrical wall along the recess perimeter wall;
a metal layer embedded within the dielectric layer, wherein the metal layer is a conductor of the patch antenna and includes a trace having an undulating pattern, wherein the trace extends from a first end through a turnback having a first longitudinal segment interconnected to a second longitudinal segment by a circumferential segment;
a feedthrough via to feed a signal to the metal layer, wherein the feedthrough via is connected to the first longitudinal segment between the first end and the circumferential segment; and
a ground via connected to the first longitudinal segment between the first end and the feedthrough via, wherein the ground via electrically connects the first longitudinal segment to the cylindrical wall.