US 11,668,787 B2
Waveguide with lobe suppression
Shawn Shi, Thousand Oaks, CA (US)
Assigned to Aptiv Technologies Limited, St. Michael (BB)
Filed by Aptiv Technologies Limited, St. Michael (BB)
Filed on Jan. 29, 2021, as Appl. No. 17/162,664.
Prior Publication US 2022/0244346 A1, Aug. 4, 2022
Int. Cl. G01S 7/03 (2006.01); B60R 16/023 (2006.01); G01S 13/931 (2020.01); H01P 3/12 (2006.01); H01Q 13/10 (2006.01); G01S 7/00 (2006.01)
CPC G01S 7/03 (2013.01) [B60R 16/023 (2013.01); G01S 13/931 (2013.01); H01P 3/122 (2013.01); H01Q 13/10 (2013.01)] 20 Claims
OG exemplary drawing
 
12. A system, the system comprising:
a coupler;
a transceiver operable upon actuation to interact with electromagnetic waves associated with the coupler; and
a waveguide comprising:
a pipe configured to capture the electromagnetic waves and contain a dielectric, the pipe defining an open end to a longitudinal direction through the pipe;
an array of radiating slots through a surface of the pipe and in communication with an inside surface of the pipe; and
at least one parasitic groove:
separate from the pipe;
with at least a portion of a length that is parallel to the array of radiating slots; and
spaced at a distance from the array of radiating slots to suppress grating lobes in an antenna pattern.