Disclosed are devices, systems, and methods for a LiDAR mirror assembly mounted on a vehicle, such as an autonomous or semi-autonomous vehicle. For example, a LiDAR mirror assembly may include a base plate mounted on a hood of a vehicle, where the base plate is coupled to one end of a support arm. The opposite end of the support arm is attached to a housing. The housing includes a top housing enclosure coupled to a bottom housing platform, where a sensor and a mirror is coupled to the housing, and where the sensor is at least partially exposed through an opening in the top housing enclosure. The opening for the sensor is situated near an end of the housing furthest away from the base plate.

The invention relates to a vehicle assembly for a vehicle, with the vehicle assembly including a radar sensor configured to transmit/receive radar waves. The radar sensor being placed facing a layer assembly. The layer assembly includes at least two dielectric layers, these dielectric layers including a primary layer and a secondary layer separated by a layer of air. The layer of air has a thickness equal to (m3×(λ/2))/cos(θ3), with θ3 an angle of incidence of exiting reflected waves striking the secondary layer and m3=1, . . . to N, N being an integer, the exiting reflected waves deriving from radar waves transmitted by the radar sensor.

An antenna apparatus includes a conductor layer A, a conductor layer B, and a dielectric layer that is sandwiched between the conductor layer A and the conductor layer B. In the conductor layer A, a first antenna, a second antenna, and a connection conductor are formed. The connection conductor is connected to both of the first antenna and the second antenna. In the dielectric layer, a guard conductor is provided. The guard conductor is arranged along an outer periphery of the connection conductor that excludes at least a first connection section and a second connection section of the connection conductor. The first connection section is a connection section of the connection conductor that is connected to the first antenna. The second connection section is a connection section of the connection conductor that is connected to the second antenna.

An optical face protection apparatus is provided having a support body, at least one lens and an elongate heating element. The support body is configured to be supported on a user. The at least one lens is carried by the support body and is configured to hold the at least one lens over an eye facial region of a user. The elongate heating element has an elongate tube and a heat source provided in the tube, carried by the body and configured to traverse an expansive surface area of the at least one lens.

A radar device comprises an antenna portion, a radome, and a housing. The antenna portion includes an antenna surface provided with one or more antennas, the antenna emitting a radio wave. The radome is made of a material allowing passage of the radio wave emitted by the antenna portion, and is disposed to face the antenna surface. The housing forms, together with the radome, a space for accommodating the antenna portion. The housing includes a peripheral edge which surrounds the antenna surface and is in contact with the radome, at least part of the peripheral edge includes a barrier part which protrudes outward from the radome along the antenna surface.

A vehicle exterior component includes a decoration body and a heater wire that includes a first heater wire portion arranged inside a passage region for millimeter waves in an up-down direction and a second heater wire portion arranged outside the passage region and extending horizontally on at least one of upper or lower sides of the first heater wire portion. The first heater wire portion includes linear portions horizontally spaced apart from each other and extending in the up-down direction and fold-back portions each connecting ends of adjacent ones of the linear portions such that all the linear portions are connected into one. The fold-back portions include a fold-back portion adjacent to the second heater wire portion. An interval of the narrowest part between the second heater wire portion and the fold-back portion adjacent to the second heater wire portions is set to between 2 mm and 7 mm, inclusive.

A flexible plate-based radar antenna device with a field of view over 160 degrees comprises a support base, two antenna boards, and a circuit board. The support base has an installation surface and two inclined surfaces. Two antenna boards are flexible plates, and their back surfaces are respectively stuck onto two inclined surfaces of the support base. Several set of antennas are disposed on front surface of the antenna boards for transmitting detection signals and receiving reflection signals from at least one obstacle. The circuit board is electrically connected with two antenna boards, controlling the antenna boards to transmit and receive signals. As long as the shape of the support base is adjusted to make the antenna boards able to stick onto it, the antenna boards of the present invention are applicable to radar devices having an arbitrary shape. Therefore, the present invention can simplify the fabrication process.

According to a radar system according to these embodiments, by mounting a radar antenna, an RF device, and a controller on an upper face and a lower face of a circuit board, the size and the cost can be reduced by decreasing the number of constituent components, and the reliability and the durability can be improved by discharging heat generated in the circuit board to the outside.

Low-cost devices for measuring radar transmission and/or reflectance of coated articles are provided. An exemplary low-cost radar transmission and reflection measurement device includes a radar transmitter that emits a radar signal, a radar target to which the radar signal is directed, and a radar receiver that receives the radar signal. Further, the exemplary low-cost device includes a sample holder located between the radar transmitter and the radar target and between the radar target and the radar receiver. The sample holder receives a sample including a coating. The low-cost device also includes a controller connected to the radar transmitter and radar receiver. The controller measures a radar signal loss due to the coating.

Waveguide and/or antenna assemblies for RADAR sensor assemblies/modules, particularly those for vehicles. In some embodiments, the assembly may comprise a waveguide block defining one or more waveguides, each waveguide defined by a waveguide groove. In some embodiments, at least a portion of at least one waveguide groove is non-straight, such as meandering/oscillating back and forth. An antenna structure may be operably coupled with the one or more waveguides, which structure may comprise an array of one or more slots. In some embodiments, a single, elongated slot of the one or more slots may extend along an axis of each waveguide groove for delivering electromagnetic radiation from a corresponding waveguide of the one or more waveguides therethrough.