US 11,721,905 B2
Waveguide with a beam-forming feature with radiation slots
Shawn Shi, Thousand Oaks, CA (US)
Assigned to Aptiv Technologies Limited, St. Michael (BB)
Filed by Aptiv Technologies Limited, St. Michael (BB)
Filed on Jul. 9, 2021, as Appl. No. 17/371,617.
Claims priority of provisional application 63/161,907, filed on Mar. 16, 2021.
Prior Publication US 2022/0302600 A1, Sep. 22, 2022
Int. Cl. H01Q 13/02 (2006.01); H01Q 1/32 (2006.01); H01Q 13/18 (2006.01); H01Q 21/00 (2006.01)
CPC H01Q 13/0233 (2013.01) [H01Q 1/3233 (2013.01); H01Q 13/18 (2013.01); H01Q 21/0043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a waveguide configured to guide electromagnetic energy through an opening at a first end of at least one channel filled with a dielectric, the waveguide comprising:
two parallel surfaces of the waveguide that form a ceiling and a floor of the channel filled with the dielectric;
adjoining surfaces orthogonal to the two surfaces that form walls of the channel filled with the dielectric; and
a beam-forming feature comprising two recessed walls separated by a plurality of radiation slots, the two recessed walls configured to provide a recessed surface through which the plurality of radiation slots include openings to the channel filled with the dielectric, a first wall of the two recessed walls running parallel to a longitudinal axis of the waveguide, a second wall of the two recessed walls running parallel to the first wall and having a height that is less than that of the first wall.