A method comprises performing, by a first coherent radar system on a chip configured to operate in a terahertz range between 0.1 THz and 1 THZ, a first radar scan of a target, the first coherent radar system being in physical contact with a first non-physical scanning device. The first non-physical scanning device then receives first scanning data from the first radar scan, and sends a coordination signal to a second non-physical scanning device. A second coherent radar system on a chip configured to operate in the terahertz range performs a second radar scan of the target, the second coherent radar system being in physical contact with the second non-physical scanning device. The second non-physical device receives second scanning data from the second radar scan, and the first and second scanning data are sent to a processor for a determination as to whether an impermissible object has been detected.

RADAR sensor assemblies/modules, particularly those for vehicles. In some embodiments, the assembly may comprise a plurality of waveguides, each waveguide of the plurality of waveguides being defined by a waveguide groove. A slot may be positioned to extend along an axis of each of the plurality of waveguide grooves. Each of the waveguides may be further defined, at least in part, by a periodic feature that extends back and forth in a periodic manner along at least a portion of its respective waveguide and a plurality of periodic signal confinement structures, a first periodic signal confinement structure of which may extend adjacent to a first side of each of the plurality of waveguides, and a second periodic signal confinement structure which may extend along a second side of each of the plurality of waveguides opposite the first side.

A heatsink shield with thermal-contact dimples can improve thermal-energy distribution in a radar assembly. The radar assembly includes a printed circuit board (PCB), the heatsink shield, a radome, and a housing. The PCB can include integrated circuits and other components, along with a thermally-conductive material that covers at least a portion of the PCB surfaces. The heatsink shield includes multiple dimples that thermally contact the thermally-conductive material. The heatsink shield is configured to distribute thermal energy produced at least in part by the PCB components to the housing. In this way, the described techniques and systems permit the radar assembly to better distribute thermal energy away from the PCB components to the rest of the PCB and through the housing.

A sensor system includes a camera module and a radar module, wherein the camera module and the radar module are housed separately and detachably, and the sensor system is mounted in a cabin of a vehicle.

Antenna structures and assemblies for use in RADAR sensor assemblies and the like. In some embodiments, the assembly may comprise a feed waveguide comprising one or more feeding slots and a parallel plate waveguide operably coupled with the feed waveguide such that each of the one or more feeding slots of the feed waveguide is configured to inject electromagnetic energy into the parallel plate waveguide. A plurality of radiating slots may be formed in a plurality of rows and/or columns extending away from the feed waveguide to deliver electromagnetic energy out of the antenna assembly.

A sensor assembly for use in association with non-integrated, ground-based collision avoidance systems for aircraft, including (a) a sensor; and (b) a frame sub-assembly, wherein the sensor is releasably securable to the frame sub-assembly.

A vehicle body structure having an external environment sensor includes: a vehicle body; and a sensor mount member supporting an external environment sensor and mounted on the vehicle body. The external environment sensor includes: a sensor main body that irradiates an electromagnetic wave to an object and receives a reflected wave from the object; and a housing accommodating the sensor main body, wherein a moth-eye structure is formed on an electromagnetic wave passing part of the housing through which at least one of the electromagnetic wave and the reflected wave passes.