A planar conductive millimeter-wave lens includes: a planar conductive plate with a first surface and a second surface, wherein the first surface is parallel to the second surface; a plurality of openings from the first surface through the planar conductive plate to the second surface, where an axis of each opening is perpendicular to the first surface and the second surface. A size of each opening is a function of a position of said each opening on the planar conductive plate such that an insertion phase collectively imposed by the openings on an incident wave causes the incident wave to pass through the first surface and the planar conductive plate, exit from the second surface and to focus at a predetermined distance from the second surface.

A dielectric encapsulated metal lens includes a planar conductive plate with a first surface and a second surface, wherein the first surface is parallel to the second surface; a plurality of openings from the first surface through the planar conductive plate to the second surface, wherein a longitudinal axis of each opening is perpendicular to the first surface and the second surface, wherein a size of each opening is a function of a position of said each opening on the planar conductive plate; and a dielectric material encapsulating the planar conductive plate and filing the plurality of openings, where the dielectric material forms a top surface and a bottom surface for the metal lens to reduce reflected energy.

A millimeter-wave optical imaging system including an imaging detector located at a focal plane of the optical imaging system, the imaging detector being responsive to electromagnetic radiation in wavelength range of approximately 5-50 millimeters, an immersion lens directly coupled to the imaging detector and configured to focus the electromagnetic radiation onto the imaging detector, wherein the focal plane is located on a planar surface of the immersion lens and the imaging detector is directly coupled to the planar surface, a positive power primary mirror configured to reflect the electromagnetic radiation towards the immersion lens, and one of a Fresnel lens or a diffraction grating configured to receive and direct the electromagnetic radiation towards the primary mirror.

An electromagnetic wave transmission structure adapted to cause convergence of an electromagnetic wave includes a substrate and a transmission unit provided on the substrate and including an annular metal plate. The annular metal plate has a weighted average inner radius and a weighted average outer radius each related to the wavelength of the electromagnetic wave, the distance between the electromagnetic wave transmission structure and a focal point defined as the point of convergence of the electromagnetic wave, and the distance between the source of the electromagnetic wave and the focal point. The plural inner and outer radii of the annular metal plate have the same trend of variation. Each inner or outer radius corresponds to a weight related to the reference included angle formed between the inner or outer radius and a reference axis.

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.

An antenna module and communication device containing the antenna module are disclosed. The antenna module is disposed in a metal cavity. The antenna module includes a switched beam mm-wave antenna array having radiating elements separated by less than a wavelength of the radiating elements. The array is fed by a single transceiver chain. The array is disposed at the focal length of a low-profile mm-wave lens configured to steer the beam. A sub-10 GHz antenna is disposed closer to the opening of the cavity than the lens. The lens is a Fresnel Zone Plate lens having a focal length of less than about the wavelength of the beam, or a Saucer lens having shells of different refractive indexes and having a profile that is more than 6 times smaller than a Luneburg lens with a same focal length.

The present invention relates to: a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present invention provides an antenna module comprising: an antenna array for radiating beams through a top surface thereof; a dielectric disposed to be spaced apart from the top surface of the antenna array by a first preset length; a first reflector comprising a metallic material, and disposed to be spaced apart from the bottom surface of the dielectric by a second preset length; and a second reflector comprising a metallic material and disposed in the partial region of the bottom surface, of the dielectric, which faces the top surface of the antenna array.

A terahertz wave lens includes a substrate having a surface provided with an uneven structure that changes a phase of the terahertz wave. The uneven structure includes a plurality of holes that are periodically arranged. The uneven structure includes a plurality of regions where the plurality of holes are arranged. A height of the hole in a thickness direction of the substrate and a width of the pillar differ for each of the regions. Outer end portions of the uneven structure in the thickness direction are located on the same plane.

A terahertz wave lens includes a substrate having a surface provided with an uneven structure that changes a phase of the terahertz wave. The uneven structure includes a plurality of holes that are periodically arranged. The uneven structure includes a plurality of regions where the plurality of holes are arranged. A height of the hole in a thickness direction of the substrate and a width of the pillar differ for each of the regions. Outer end portions of the uneven structure in the thickness direction are located on the same plane.

The present invention relates to a communication technique for fusing a 5G communication system to support a higher data transmission rate than a 4G system, with IoT technology, and a system thereof. This disclosure is based on 5G communication technology and the IoT related technology and can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security, safety-related services, or the like). In addition, the present invention provides an antenna module comprising an antenna and a lens, wherein the antenna comprises a first antenna array which deflects and radiates a radio wave from a vertical plane of the antenna by a predetermined first angle, and the lens can be spaced apart from the antenna by a first determined distance to change the phase of the radio wave radiated from the antenna.