An electronic device may have a cover layer and an antenna. A dielectric adapter may have a first surface coupled to the antenna and a second surface pressed against the cover layer. The cover layer may have a three-dimensional curvature. The second surface may have a curvature that matches the curvature of the cover layer. Biasing structures may exert a biasing force that presses the antenna against the dielectric adapter and that presses the dielectric adapter against the cover layer. The biasing force may be oriented in a direction normal to the cover layer at each point across dielectric adapter. This may serve to ensure that a uniform and reliable impedance transition is provided between the antenna and free space through the cover layer over time, thereby maximizing the efficiency of the antenna.

An antenna device includes a housing and a printed antenna. The housing includes a front glass shell, a rear glass shell, and a metal bracket. The metal bracket is between the front glass shell and the rear glass shell, and the metal bracket is connected to outer peripheries of the front glass shell and the rear glass shell to form an accommodation space together. The metal bracket includes a first frame portion, a second frame portion, and an opening, and the opening is defined between the first and second frame portions. The printed antenna is arranged in the housing and between the first and second frame portions, and the opening exposes at least a portion of the printed antenna.

An antenna apparatus having a peripheral radio-frequency (RF) choke with directional heat transfer is described. In some embodiments, an antenna apparatus comprises: an upper enclosure portion; a lower enclosure portion coupled to the upper enclosure portion to form an inner area; an antenna aperture having a plurality of antenna elements, the plurality of antenna elements to radiate radio-frequency (RF) energy and the antenna aperture to generate heat when in operation; and an RF choke gasket between, and forming a thermal communication, with the upper and lower enclosures to operate as an RF absorber to absorb RF energy and to directionally transfer the heat toward the upper enclosure.

A radar sensor module includes a substrate, at least one transmit antenna formed on a surface of the substrate, and at least one receive antenna formed on the surface of the substrate. A radome is disposed over the surface of the substrate and the at least one transmit antenna and the at least one receive antenna, such that a gap is located between the surface of the substrate and an underside of the radome in which a portion of radiation emitted from the at least one transmit antenna can propagate. At least one trench is formed in the underside of the radome and is electromagnetically coupled to the gap, the at least one trench being sized, shaped and positioned with respect to the gap such that the portion of radiation emitted from the at least one transmit antenna is substantially prevented from propagating toward the receiving antenna.

Antenna assemblies are described herein. In particular, described herein are multi-focal-point antenna devices and compact radio frequency (RF) antenna devices. Any of these assemblies may include a primary feed that includes a single patterned emitting surface from which multiple different beams of RF signals are emitted corresponding to different antenna input feeds each communicating with the patterned antenna emitting surface. The antenna assembly is therefore capable of emitting beams in the same direction having different polarizations using a single primary feed.

A radar apparatus is provided that is capable of providing desired directivity without preventing downsizing of the apparatus. In the radar apparatus, an antenna for at least either transmitting radar waves or receiving reflected waves is protected by a radome. Provided on an opposing face that is a face of the radome opposing the antenna is a wall section protruding from the opposing face of the radome into a space of the radome and extending along at least a portion of an outline of an aperture projection. The aperture projection is a projection of an aperture of the antenna onto the opposing face in a normal direction to the aperture.

A remote radio unit, which includes a housing, a ventilation air channel, and a circuit component, where the housing is a sealed hollow cavity; the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing in a sealed manner, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing in a sealed manner; and the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, so that heat generated by the circuit component is dissipated through the ventilation air channel.

A speed sensor which aligns a normal direction of one patch antenna which is disposed on a mounted board, and an optical axis of a dielectric lens uses a frame for inclining a sensor module, in order to obtain a component cos θ in a traveling direction when the speed sensor is installed on a horizontally vertical surface of an automobile or a railway car. When beams are condensed by using the one patch antenna and the cannonball-shaped dielectric lens, the dielectric lens is inclined and a bottom surface portion of the lens is cut with a plane parallel with a surface of the antenna-mounted board. The one patch antenna is configured by one patch and a GND electrode and the gain center of radiation characteristics is a normal direction of the antenna board. However, the radiation characteristics have a substantially hemisphere surface wave shape.

In one aspect, a scooter is provided. The scooter may include a steering column. The scooter may include a rider-support-platform coupled to the steering column. The scooter may include an antenna attached to the steering column. The antenna may be configured to perform wireless communication. The antenna may have a first inclination angle relative to the steering column. In another aspect, a method of providing a scooter is provided. The method may include providing a steering column of the scooter. The method may include coupling a rider-support-platform to the steering column. The method may include attaching an antenna to the steering column.

FIG. 2

According to a first aspect, a method of designing a radome may include defining a set number N of flight paths FP.sub.N, where each flight path FP.sub.N is between a first city and a second city, determining a Looking Angle Distribution (Lα-Dist) for each flight path FP.sub.N, calculating a Combination Looking Angle Distribution (Combo-Lα-Dist) for the set number N of flight paths FP.sub.N, determining a Combination Incidence Angle Distribution (Combo-Iα-Dist) corresponding the Combo-Lα-Dist, and tailoring at least one radome shell structural component of the radome to minimize electromagnetic degradation of electromagnetic waves intersecting the radome at angles within the Combo-Iα-Dist.