The invention relates to a cover element having a housing of a film that is formed and moulded between a front plate and a carrier plate and is used to represent multidimensional structures, the carrier plate being connected on the rear side to a heating plate, characterized in that the housing consists of an annular housing base and an annular housing front, and a circuit-board ring having LEDs and plugs is installed in the housing base.

An electronic device is disclosed. The electronic device may comprise: a housing having a first dielectric constant and including a first part; a substrate disposed inside the housing and including a communication module disposed on the surface thereof opposite to the first part; and a ceramic layer formed between the substrate and the first part to cover the communication module, wherein the first part and the ceramic layer are formed to have a second dielectric constant different from the first dielectric constant. Various other embodiments understood through the specification are possible.

Two-piece and three-piece radomes and their methods of manufacture involve independently optimizing a thickness profile of each piece to achieve desired radar performance metrics such that an air gap can exist or can be intentionally included between the various pieces without negatively affecting the radar performance of the radomes.

The disclosure relates to suppressing surface waves in a communication device for a wireless communication system. The communication device includes a dielectric layer extending along a plane between a chassis and a glass layer, an antenna element configured to emit a radio wave, and a retroreflective structure extending inside the dielectric layer and being located adjacent to the antenna element, and where the retroreflective structure is configured to reflect the radio wave in an angle non-parallel to the plane. The retroreflective structure hence prevents parasitic channeling of the antenna energy into surface waves in and behind the glass layer and directs the radiation into the desired direction.

A method for fabricating multi-layer ceramic broadband radome includes thermal-spraying layers of coating materials on the radome. The assembled structure exhibits tuned RF transparency response depending on the thickness and the dielectric constant of the deposited layers. Sub-micron thick ceramic layers, which are essential for broadband performance and hard to produce due to their fragile nature, can be deposited on big and complex objects by a fast and automated process.

The radome (1) for vehicles comprises a frontal transparent layer (5); a metal-looking decoration layer (7); a rear layer (10); an adhesion promoter layer (8) placed between the metal-looking decoration layer (7) and the rear layer (10); and a colored decoration layer (6) placed between the frontal transparent layer (5) and the metal-looking decoration layer (7).

The method for manufacturing said radome comprises the steps of forming said layers, so that the adhesion promoter layer (8) is placed between the metal-looking decoration layer (7) and the rear layer (10), and the colored decoration layer (6) is placed between the frontal transparent layer (5) and the metal-looking decoration layer (7).

It permits to provide a radome in which there is no air gap between its plastic molded parts, enhancing its performance to transmit the radar emitted and received waves.

A method for constructing multiple ceramic layers by winding continuous ceramic filaments of different compositions to prepare multilayer RF-transparent structures is provided. In the method, different continuous ceramic filaments are braided to construct layers with specific dielectric constants and braiding count/thickness. Layers with same or different dielectric characteristics forms a sandwich design to fulfill the desired mechanical, thermal and electrical requirements.

Embodiments relate to a frame structure for a device, comprising a frame comprising a receiving opening, a core structure inserted into the receiving opening and a front layer fixed to the frame and covering a front surface of the core structure. The frame structure further comprises a back layer fixed to the frame and covering a back surface of the core structure, wherein the front layer and the back layer sandwich the core structure in such a manner that bending force acting on the core structure is absorbed by the front layer and the back layer.

Multi-layered articles or products comprising layers of filled polymer compositions, methods of making and applications or uses thereof.

The present disclosure provides an antenna module including a substrate, a first antenna disposed on the substrate and a second antenna disposed on the substrate and spaced apart from the first antenna. The first antenna is configured to have a first operating frequency and the second antenna is configured to have a second operating frequency different from the first operating frequency. The antenna module further includes an element configured to focus an electromagnetic wave transmitted or received by the first antenna and the second antenna. A semiconductor device package is also disclosed.