US 12,424,767 B2
Planar surface features for waveguide and antenna
Mingjian Li, Santa Clara, CA (US)
Assigned to Aptiv Technologies AG, Schaffhausen (CH)
Filed by Aptiv Technologies AG, Schaffhausen (CH)
Filed on Feb. 28, 2023, as Appl. No. 18/176,329.
Claims priority of provisional application 63/383,847, filed on Nov. 15, 2022.
Prior Publication US 2024/0162629 A1, May 16, 2024
Int. Cl. H01Q 9/04 (2006.01); H01Q 21/06 (2006.01)
CPC H01Q 21/065 (2013.01) [H01Q 9/045 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A waveguide comprising:
a first structure with a first planar surface arranged adjacent to a separation plane dividing a channel for an energy path to propagate electromagnetic energy through the waveguide, a recessed groove being shaped into the first planar surface to form a first part of the channel between side walls of the groove,
wherein the groove does not extent entirely through the first structure; and
a second structure with a second planar surface arranged adjacent to the separation plane and opposite the first planar surface, an arrangement of surface features formed on the second planar surface being spaced and shaped to form a second part of the channel to compliment the first part formed by the recessed groove,
at least two adjacent surface features comprising adjacent protrusions in the arrangement aligned with opposing side walls of the recessed groove to bound an area of the second planar surface located on and between the adjacent protrusions as the second part of the channel, a portion of the second planar surface at each of the adjacent protrusions being contoured to a different opposing side wall of the recessed groove to configure the energy path through the channel and configure the channel to prevent energy leakage from the separation plane dividing the channel.