Abstract: Antenna assemblies for vehicles, such as RADAR sensor antenna assemblies. In some embodiments, the assembly may comprise an antenna block defining a first waveguide on a first side of the antenna block and a second waveguide on a second side of the antenna block. The assembly may comprise a vertical waveguide extending from the first side of the antenna block to the second side of the antenna block. The vertical waveguide may be functionally coupled with the first waveguide and the second waveguide. One or both of the first and second waveguides may comprise a transitional region configured to facilitate redirection of electromagnetic waves to the vertical waveguide.

Abstract: Waveguide module assemblies for vehicles, such as radar sensor waveguide feed to waveguide transition assemblies. In some embodiments, an antenna module may comprise an antenna assembly that includes a resonating element and a waveguide component that defines, at least in part, a waveguide configured to guide electromagnetic energy radiating from the resonating element. The resonating element of the antenna assembly may directly feed electromagnetic energy into the waveguide defined by the waveguide component.

Abstract: Antenna assemblies for vehicles, such as RADAR sensor antenna assemblies. In some embodiments, the assembly may comprise an antenna block defining a waveguide groove and an adapter portion comprising a ridge. The ridge may taper or otherwise transition in height and/or width to facilitate a transition between two adjacent elements of the assembly, such as two adjacent waveguide structures comprising ridges having different cross-sectional dimensions.

Abstract: Antenna assemblies for vehicles, such as RADAR sensor antenna assemblies, and related waveguide assemblies. In some embodiments, the assembly may comprise a waveguide groove having a waveguide ridge positioned therein. The waveguide groove may extend along an axis with the waveguide ridge intermittently extending on opposite sides of the axis in a periodic or at least quasiperiodic manner along at least a portion of the waveguide ridge. An antenna structure, such as a plurality of slots, may be operably coupled with the waveguide ridge and may be positioned and configured to deliver electromagnetic radiation from the waveguide groove therethrough.

Abstract: Antenna assemblies, such as RADAR or other sensor antenna assemblies for vehicles. In some embodiments, the assembly may comprise an antenna block defining a waveguide groove on a first side of the antenna block with opposing rows of posts positioned opposite from one another. A plurality of antenna slots may be positioned in the waveguide groove and may extend from the first side of the antenna block to a second side of the antenna block opposite the first side. A PCB or other means for generating electromagnetic energy may be coupled with the antenna block and be configured to feed the waveguide groove with an EM signal. The plurality of antenna slots formed in the antenna block may be configured to radiate electromagnetic energy from the antenna block.