Provided is a radar and light emission assembly for emitting light and radar radiation and for detecting at least reflected radar radiation including: a headlight including a light-transparent headlight cover, and a light source, and a light reflector; a radar module, which is arranged behind the headlight cover, integrated in the headlight and including a radar antenna unit. The radar and light emission assembly has at least one radar radiation-forming mechanism, in particular a frequency-selective radar radiation-forming mechanism, including a radar radiation-forming mechanism, which is integrated in the headlight cover. The application of the radar technology, integrated in the headlight, can be further optimized hereby. The invention further relates to a method and a use for a radar and light emission assembly of this type.

Examples disclosed herein relate to reflectarray antenna for enhanced wireless applications. The reflectarray antenna has a ground conductive plane, a dielectric substrate coupled to the ground conductive plane, and a patterned conductive plane coupled to the dielectric substrate and comprising an array of cells to generate an antenna gain. In some aspects, each cell in the array of cells includes a reflector element with a predetermined custom configuration and configured to receive a radio frequency (RF) signal and to generate an RF return beam at a predetermined direction. Other examples disclosed herein relate to a portable reflectarray and a method of fabricating a reflectarray antenna.

Examples disclosed herein relate to reflectarray antenna for enhanced wireless applications. The reflectarray antenna has a ground conductive plane, a dielectric substrate coupled to the ground conductive plane, and a patterned conductive plane coupled to the dielectric substrate and comprising an array of cells to generate an antenna gain. In some aspects, each cell in the array of cells includes a reflector element with a predetermined custom configuration and configured to receive a radio frequency (RF) signal and to generate an RF return beam at a predetermined direction. Other examples disclosed herein relate to a portable reflectarray and a method of fabricating a reflectarray antenna.

The present disclosure relates to a reflector lens structured life buoy, including a life buoy body. Several sections of lenses are arranged in the life buoy body. Each section of lens is of a curved cylinder structure. These lenses are distributed in a circular array by taking a center of the life buoy body as a center, so that these lenses are encircled to form a circular ring. Cross sections of all the sections of lenses in a radial direction are of a layered structure, and have dielectric constants that continuously change from 2 to 1 from the center to the outer layer. Reflection sheets are laid on circumferential surfaces of all the sections of lenses to form reflection sheet coverage regions and non-reflection sheet coverage regions on the circumferential surfaces of the lenses; surfaces of the reflection sheets fitted to the circumferential surfaces of the lenses are reflection surfaces.

The task of the present invention is to achieve gain enhancement. A terahertz device (10) of the present invention includes a terahertz element (20) generating an electromagnetic wave, a dielectric (50) including a dielectric material and surrounding the terahertz element (20), a gas space (92) including a gas, and a reflecting film (82) serving as a reflecting portion. The reflecting film (82) includes a portion opposing the terahertz element (20) through the dielectric (50) and the gas space (92) and reflecting the electromagnetic wave toward a direction, wherein the electromagnetic wave is generated from the terahertz element (20) and transmitted through the dielectric (50) and the gas space (92). In addition, the refractive index of the dielectric (50) is lower than the refractive index of the terahertz element (20) and is higher than the refractive index of the gas in the gas space (92).

A system for augmenting 360-degree aspect monostatic radar cross section of an aircraft. The system may comprise a pair of pods mountable on opposing wing tips of an aircraft and each having a pod housing with an elongate body tapering forwardly to a nose and rearwardly to a tail. Each pod may comprise a forward SDL disposed within the nose, a rear SDL disposed within the tail, and a pair of mid-body SDLs disposed within a mid-section of the pod housing. The SDLs may be arranged within the pods to reflect radiation and provide coverage around the aircraft over a region of about 360 azimuth degrees. Each SDL may comprise radar absorbing material located on an interior reflective surface, and portions of the elongate bodies may be constructed of radome material. The SDLs may be Luneburg lens having diameters of at least approximately 8-inches.

A system for augmenting 360-degree aspect monostatic radar cross section of an aircraft. The system may comprise a pair of pods mountable on opposing wing tips of an aircraft and each having a pod housing with an elongate body tapering forwardly to a nose and rearwardly to a tail. Each pod may comprise a forward SDL disposed within the nose, a rear SDL disposed within the tail, and a pair of mid-body SDLs disposed within a mid-section of the pod housing. The SDLs may be arranged within the pods to reflect radiation and provide coverage around the aircraft over a region of about 360 azimuth degrees. Each SDL may comprise radar absorbing material located on an interior reflective surface, and portions of the elongate bodies may be constructed of radome material. The SDLs may be Luneburg lens having diameters of at least approximately 8-inches.

The invention relates to a reflector comprising a reflector cavity (110) having a front opening for receiving EMR into the reflector cavity (110) for subsequent reflection of the EMR by at least one reflector element (120) arranged within the reflector cavity (110), characterized in that the reflector further comprises a front cover (130) that has high EM R transmittance in at least parts of the EM spectrum, the front cover (130) being arranged to cover the front opening of the reflector cavity (110), and that the front cover (130) and front opening form a gastight seal (140) impermeable to gas to prevent transport of material into and out of the reflector cavity (110) through the front opening.

A phase compensation lens antenna comprises: an antenna array comprising a plurality of antennas; and a planar lens disposed parallel to the antenna array, wherein the planar lens has unit cells disposed in a straight line pattern or an open curve pattern, and the unit cells can correct the phase of a radio wave radiated from the antenna array, based on the permittivity.

A phase compensation lens antenna comprises: an antenna array comprising a plurality of antennas; and a planar lens disposed parallel to the antenna array, wherein the planar lens has unit cells disposed in a straight line pattern or an open curve pattern, and the unit cells can correct the phase of a radio wave radiated from the antenna array, based on the permittivity.