The present invention relates to an antenna assembly for a beamforming antenna, comprising a reflector and an antenna array that includes a plurality of first radiating elements that are arranged as a first vertically extending array, the first radiating elements extending forwardly from the reflector; and a plurality of second radiating elements that are arranged as a second vertically extending array, the second radiating elements extending forwardly from the reflector. Two adjacent first radiating elements are spaced apart from one another by a first distance, and a first radiating element and an adjacent second radiating element are spaced apart from one another by a second distance. The first distance is substantially equal to the second distance. The antenna assembly further comprises a plurality of parasitic elements that are placed along sides of the first and second of the vertically extending arrays.

A cover for a sunken enclosure includes a mounting part for mounting it to a sunken enclosure with which it is used such that the cover is movable between a closed position in which it closes an open top of the enclosure and is substantially level with a surface intersected by the open top, and an open position in which it is displaced from the surface and exposes an internal area of the enclosure, and in which the cover includes an antenna for transmitting and receiving radio waves.

An electronic device may be provided with a dielectric cover and a phased antenna array for conveying millimeter wave signals. A conductive pocket may be mounted to the cover. The pocket may include a conductive rear wall and conductive sidewalls that extend from a periphery of the rear wall to the cover. The array may be mounted to the rear wall and may convey signals through the cover. The sidewalls may extend from the cover at non-zero angles with respect to the normal axis of the cover. The shape of the pocket and the cover may be selected so that the pocket is non-resonant at frequencies handled by the array, to mitigate destructive interference within the pocket, to block surface waves from propagating along the cover, and to tweak the radiation pattern of the array to exhibit a desired shape and directionality.

Apparatus comprising at least one movable reflective surface configured to reflect electromagnetic waves and at least one actuator coupled with the at least one movable reflective surface, wherein said at least one actuator is configured to at least temporarily drive a movement of said at least one reflective surface.

Embodiments include semiconductor packages and methods of forming the semiconductor packages. A semiconductor package includes a die over a substrate, a first conductive layer over the die, and a conductive cavity antenna over the first conductive layer and substrate. The conductive cavity antenna includes a conductive cavity, a cavity region, and a plurality of interconnects. The conductive cavity is over the first conductive layer and surrounds the cavity region. The semiconductor package also includes a second conductive layer over the conductive cavity antenna, first conductive layer, and substrate. The conductive cavity extends vertically from the first conductive layer to the second conductive layer. The cavity region may be embedded with the conductive cavity, the first conductive layer, and the second conductive layer. The plurality of interconnects may include first, second, and third interconnects. The first interconnects may include through-mold vias (TMVs), through-silicon vias (TSVs), conductive sidewalls, or conductive trenches.

The present invention relates to an antenna assembly for a beamforming antenna, comprising a reflector and an antenna array that includes a plurality of first radiating elements that are arranged as a first vertically extending array, the first radiating elements extending forwardly from the reflector; and a plurality of second radiating elements that are arranged as a second vertically extending array, the second radiating elements extending forwardly from the reflector. Two adjacent first radiating elements are spaced apart from one another by a first distance, and a first radiating element and an adjacent second radiating element are spaced apart from one another by a second distance. The first distance is substantially equal to the second distance. The antenna assembly further comprises a plurality of parasitic elements that are placed along sides of the first and second of the vertically extending arrays.

In accordance with an embodiment, radar system includes a radar sensor having a first antenna configured to emit a radar beam towards a predefined region. The radar system comprises a reflector spaced apart from the radar sensor and configured to redirect at least part of the radar beam towards a target region different from the predefined region. The radar sensor comprises a second antenna configured to receive a reflection of the radar beam originating from the target region.

An integrated circuit package is provided. The integrated circuit package comprises a transceiver radio-frequency integrated circuit, RFIC, and at least one antenna array formed in a redistribution metal layer of the integrated circuit package, and is arranged in a fan-out area of the RFIC. The at least one antenna array comprises at least one crossed dipole antenna (10). Each crossed dipole antenna comprises a first dipole comprising two first legs (11), and a second dipole comprising two second legs (12), and two leg pairs (10a, 10b), each leg pair comprising one first leg of the first dipole and one second leg of the second dipole, and two feed lines (20a, 20b). Each feed line is coupled to a respective leg pair at a center (15) of the crossed dipole antenna. At least a part of each feed line is arranged between the two leg pairs.

A multi-band antenna includes a first radiating element that is configured to operate in a first frequency band, a second radiating element that is configured to operate in a second, different frequency band, and a metamaterial adjusting element that is configured to at least partially reflect the electromagnetic radiation in the second frequency band incident on the metamaterial adjusting element such that the reflected electromagnetic radiation is redirected to at least partially cancel the interference of the first radiating element to the second radiating element.

A tracking system uses a road mounted microwave reflector as an alignment tool. The system can be used to provide primary or supplemental guidance and alignment for a self-driving vehicle, or it can be used to provide warning signals for a manually controlled vehicle. The disclosed reflector is economical and easily installed. A preferred corner reflector includes both a microwave retro reflector and an embedded tuned circuit. The system is optimized to operate reliability and accurately in conditions of inclement weather and poor visibility, particularly where GPS signals, conventional road markers and visual aids fail.