A body part for a motorized land vehicle is provided. The body part includes at least one wall made of a plastic material and including at least one housing forming a cavity for electromagnetic waves, said housing includes: at least one transceiver for transmitting and/or receiving an electromagnetic wave in said housing; at least one adaptable surface capable of reflecting the electromagnetic wave transmitted by the transceiver in a given direction (in a controlled manner) and, conversely, capable of reflecting the electromagnetic wave coming from the exterior of the housing toward the transceiver.

A radome for a radar sensor of a motor vehicle, having at least one main body facing the radar sensor, through which main body radar beams are intended to pass and which is made of at least one optically non-transparent material, which radome has a first dielectric constant at least on a side facing away from the radar sensor, wherein the radome also has an optically transparent foil with a second dielectric constant which lies between the first dielectric constant and the dielectric constant of air, said foil being applied on the side facing away from the radar sensor and at least in the region of the main body through which the radar beams are intended to pass.

An antenna array apparatus includes: first antenna elements arranged to form a first radiation pattern with a recessed portion at the center of the first radiation pattern; and second antenna elements arranged to form a second radiation pattern with a convex portion at the center of the second radiation pattern.

An illustrative example embodiment of an antenna device includes a substrate, a plurality of antenna elements supported on the substrate, an integrated circuit supported on one side of the substrate, and a metallic waveguide antenna situated against the substrate. The metallic waveguide antenna includes a heat dissipation portion in a thermally conductive relationship with the integrated circuit. The heat dissipation portion is configured to reduce a temperature of the integrated circuit.

A novel and useful radome suitable for use in an automotive radar system that employs patch antenna arrays. In one embodiment, the radome is a ‘U’ shaped half cylinder for patch antenna arrays such as on a printed circuit board (PCB). The patch antennas may or may not be situated in the same plane. Each array has its own half cylinder associated with it. Each array may have a different antenna pattern with different gain and side lobes. In this case, each patch antenna array has its own radome configured appropriately. Alternatively, the radome comprises a half sphere shape (or bubble shape) whereby each antenna port has its own individual half sphere shaped radome. This functions to improve the performance of the radome by increasing the number of curved dimensions from one to two.

An aspect of the present disclosure is directed to and provides radar-reflecting systems and apparatus that employ metasurfaces to produce enhanced radar cross sections that are greater than those produced by the geometry of the surfaces alone. Another aspect of the present disclosure is directed to and provides heat-ducting systems and apparatus that include metasurfaces. A further aspect of the present disclosure is directed to and provides cards with metasurfaces. Exemplary embodiments utilize fractal plasmonic surfaces for a metasurface.

An antenna array apparatus includes: first antenna elements arranged to form a first radiation pattern with a recessed portion at the center of the first radiation pattern; and second antenna elements arranged to form a second radiation pattern with a convex portion at the center of the second radiation pattern.

An electronic assembly 52 includes a plurality of circuit boards 70, 74, 78 each comprising engagement grooves 84 spaced around an outer wall. The assembly includes a plurality of spacers 72, 76 with alignment elements. The alignment elements comprise a first tab 92 and a first tab receiver 93 extending in a first axial direction. The alignment elements further comprising a second tab 90 extending in a second axial direction opposite the first and a second tab receiver 91 extending in the second axial direction. A first spacer 72 is disposed between a first circuit board 70 and a second circuit board 74. The first tab 92 of the first spacer 72 is disposed within a first engagement groove of the first circuit board 70. The second circuit board 74 is disposed between the first spacer 72 and a second spacer 76. A second tab 90 of the first spacer 72 is received in a second engagement groove 84 of the second circuit board 74 and a first tab receiver 93 of the second spacer 76.

A radar system is described herein. The radar system includes a printed circuit board (PCB) that includes a metallized top layer and a substrate layer that is adjacent the metallized top layer. The substrate layer includes a substrate integrated waveguide (SIW), and the metallized layer has a slotted taper etched therein. The slotted taper is positioned relative to the SIW such that an electromagnetic signal generated by a monolithic microwave integrated circuit (MMIC) passes from the slotted taper to the SIW without an intervening microstrip line. The radar system further includes a housing that acts both to disperse heat and to suppress undesired electromagnetic radiation.

A non-contact object and/or gesture detection system includes at least one sensor configured to sense an object or motion within a field of view (FOV) using radio frequency radiation. Various sensor and brackets are provided which may allow a position and/or tilt of the sensor to be adjusted for controlling the FOV. A sensor housing includes a vent filter that breathable but impermeable to liquids. Various antenna designs are provided to provide desired FOV sizes and shapes, particularly for optimizing a radiation pattern that is relatively wide and shallow. A steerable antenna layout is also provided for controlling the location of the FOV without an adjustable bracket. A sensor housing including a projector mount for an icon projector is provided. A seal prevents debris from entering between the antenna and the bumper.