Abstract: A millimeter-wave antenna for 5G applications is provided which includes an upper outer layer with a plurality of first radiating elements arranged spaced apart from each other on a first dielectric sublayer, a first inner layer arranged below the upper outer layer and having a plurality of through slots for conveying, towards the first radiating elements feeding signals to be radiated, a second inner layer arranged below and adjacent to the first inner layer having a dielectric sublayer on which there is arranged a plurality of conductive lines for conducting the feeding signals to be radiated towards the first radiating elements, a further inner layer arranged below and adjacent to the second inner layer, and a plurality of first through openings each formed on the further inner layer in a position corresponding to the position of an associated through slot.

Abstract: Antenna for a motor vehicle, comprising: a mounting base made of electrically conductive material and suitable for being connected to a mounting surface of the motor vehicle; a cover suitable for being connected to and delimit, together with the mounting base, a housing space; a plurality of radiating elements suitable for transceiving signals and being housed, at least partially, in the housing space. The plurality of radiating elements comprises a group of waveguides (21, 23, 25, 27) configured to transceive millimeter-wave signals.

Abstract: Millimeter-wave antenna for 5G applications, comprising a multilayer structure which includes: an upper outer layer comprising a plurality of first radiating elements arranged spaced apart from each other on a first dielectric sublayer; a first inner layer arranged below the upper outer layer and comprising a plurality of through slots suitable for conveying, towards the plurality of first radiating elements, the feeding signals to be radiated; a second inner layer arranged below and adjacent to the first inner layer, the second inner layer comprising at least one dielectric sublayer on which a plurality of conductive lines for conducting the feeding signals to be radiated towards the plurality of first radiating elements; a further layer arranged below and adjacent to the second inner layer and comprising a plurality of first through openings, each of the first through openings being formed on the further layer in a position corresponding to the position of an associated through slot of the plurality of t

Abstract: A method for producing a coating material is specified, comprising the following steps: producing a mixture of hydroxyl-terminated siloxane and siloxane having at least three functional hydrides and/or silane having at least three hydrolysable groups; adding an organic solvent to the mixture; homogenizing the mixture; adding an adsorption material to the mixture; and adding a catalyst to the mixture. A coating material according to the invention, a method for coating a device, and a heat exchanger are also specified.

Abstract: A radial slot antenna comprising a radial waveguide, which includes an upper plate, having a centroid and an edge region and provided with a plurality of radiating apertures, formed as slots in the upper plate, which develop around the centroid. The radiating apertures are arranged to form first and second radiating regions, which are distinct and radially separated by a dwell region without radiating apertures and wherein, in the first and second radiating regions, radially adjacent radiating apertures are separated from one another by a radial distance, the dwell region having a radial width greater than the radial distances of the radiating apertures in the first and second radiating regions. The slot antenna further comprises a signal feeder for supplying am electromagnetic field to assume, in the first and second radiating regions, opposite phases, so that the electromagnetic field emitted by the slot antenna can be expressed via Bessel functions.

Abstract: An antenna comprising a plurality of re-radiating elements arranged in at least one plane being parallel to a fixed surface. The arrangement is adapted such that electromagnetic radiation emitted from the re-radiating elements in response to electromagnetic radiation arriving from a predetermined direction interferes constructively at a feed location. Additionally, the antenna comprises a feed provided at the feed location. In a method of manufacturing an antenna, the arrangement of the plurality of re-radiating elements may be calculated and the re-radiating elements can be provided in the at least one plane substantially parallel to the substrate. An apparatus for manufacturing an antenna may comprise a data processor adapted to calculate the arrangement of the plurality of re-radiating elements and means for forming the plurality of re-radiating elements.