US 12,148,992 B2
Hybrid horn waveguide antenna
Shawn Shi, Thousand Oaks, CA (US)
Assigned to Aptiv Technologies AG, Schaffhausen (CH)
Filed by Aptiv Technologies AG, Schaffhausen (CH)
Filed on Jan. 25, 2023, as Appl. No. 18/159,627.
Prior Publication US 2024/0250443 A1, Jul. 25, 2024
Int. Cl. H01Q 13/02 (2006.01); H01Q 1/32 (2006.01)
CPC H01Q 13/0266 (2013.01) [H01Q 1/3233 (2013.01); H01Q 13/0283 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a waveguide antenna configured to guide electromagnetic energy through a channel defining an energy path for the electromagnetic energy, the waveguide antenna comprising:
a first waveguide section configured to propagate the energy path along an x-axis, the first waveguide section comprising:
a first port centered around the x-axis at which the electromagnetic energy enters or exits the waveguide antenna; and
a first channel portion extending longitudinally along the x-axis;
a second waveguide section configured to propagate the energy path from the x-axis to a z-axis, the z-axis being orthogonal to the x-axis, the second waveguide section comprising:
a second channel portion extending longitudinally along the z-axis; and
a second port centered around the z-axis; and
an antenna section having an inverted trapezoidal prism shape and configured to radiate or receive the electromagnetic energy, the antenna section comprising:
a first aperture configured to align with the second port of the second waveguide section, the first aperture of the antenna section having a first width along a y-axis and a first length along the x-axis such that the first length along the x-axis is greater than the first width along the y-axis;
a first step feature extending from a first side of the first aperture nearest to the first port along the x-axis towards the first port;
a second step feature extending from a second side of the first aperture, opposite the first side, along the x-axis away from the first port;
a first wall extending along the z-axis from an edge of the first step feature that is opposite the first side of the first aperture;
a second wall extending along the z-axis from an edge of the second step feature that is opposite the second side of the first aperture;
a third wall extending along the y-axis and the z-axis from a third side of the first aperture, the y-axis being orthogonal to the x-axis and the z-axis, the third side being orthogonal to the first side and the second side, the third wall flaring away from the first aperture;
a fourth wall extending along the y-axis and the z-axis from a fourth side of the first aperture, opposite the third side, the fourth wall flaring away from the first aperture; and
a second aperture opposite the first aperture and defined by edges of the first wall, the second wall, the third wall, and the fourth wall, the second aperture having a second width along the y-axis greater than the first width and a second length along the x-axis equal to the first length such that the waveguide antenna is a hybrid horn waveguide antenna with the first length and the second length along the x-axis being greater than the first width along the y-axis and the second width along the y-axis, respectively and step features only along the x-axis among the x-axis and the y-axis.