There is provided mechanisms for adaptive beamforming scanning. A method is performed by a network device having a non-uniform directional network coverage. The method comprises obtaining a beam pattern indicating spatial directions in which reception of identification signals is to be scanned, wherein the beam pattern is defined by the non-uniform directional network coverage. The method comprises scanning with directional beams in the spatial directions according to the beam pattern for reception of the identification signals from wireless devices

This invention concerns a multibeam antenna with adjustable pointing, comprising a single reflection arrangement and a plurality of radiating sources arranged opposite the reflection arrangement and suited to emit and/or receive radiofrequency (RF) signals, the reflection arrangement defining a centre, a focal plane, and a focal point located on the focal plane.

The antenna is characterised in that at least one of the radiating sources (mobile source) is movable substantially independently of the or each other radiating source on a scanning surface to adjust the pointing of the antenna, wherein the scanning surface coincides with the focal plane or is tangential to it at the focal point.

Methods, apparatuses, and systems for two-way satellite communication and an asymmetric-aperture antenna for two-way satellite communication are disclosed. In one embodiment, a beam pattern for an asymmetric-aperture antenna is offset in a narrow beamwidth direction, and the offset beam pattern is directed by a mechanical gimbal, with the beam pattern offset made to reduce interference with an adjacent satellite. In additional embodiments, operational areas near the equator are identified for a given offset beam pattern, or a beam pattern offset may be adjusted over time to compensate for movement of the asymmetric-aperture antenna when attached to an airplane, boat, or other mobile vehicle.

An antenna system that includes a plurality of lens sets. Each lens set includes a lens and at least one feed element. At least one feed element is aligned with the lens and configured to direct a signal through the lens at a desired direction.

A fixed wireless access system is implemented using orthogonal time frequency space multiplexing (OTFS). Data transmissions to/from different devices share transmission resources usingdelay Doppler multiplexing, time-frequency multiplexing, multiplexing at stream and/or layer level, and angular multiplexing. Time-frequency multiplexing is achieved by dividing the time-frequency plan into subgrids, with the subsampled time frequency grid being used to carry the OTFS data. Antenna implementations include a hemispherical antenna with multiple antenna elements arranged in an array to achieve multiplexing.

Methods, apparatuses, and systems for two-way satellite communication and an asymmetric-aperture antenna for two-way satellite communication are disclosed. In one embodiment, a beam pattern for an asymmetric-aperture antenna is offset in a narrow beamwidth direction, and the offset beam pattern is directed by a mechanical gimbal, with the beam pattern offset made to reduce interference with an adjacent satellite. In additional embodiments, operational areas near the equator are identified for a given offset beam pattern, or a beam pattern offset may be adjusted over time to compensate for movement of the asymmetric-aperture antenna when attached to an airplane, boat, or other mobile vehicle.

A communication device includes a base, a signal transceiver, a first antenna array and a second antenna array. The signal transceiver is configured to up-convert or down-convert the radio frequency signals. The first antenna array is disposed on the base and electrically coupled to the transceiver. The first antenna array is configured to receive or transmit a first radio frequency signal along a first orientation. The first radio frequency signal is transmitted between the first antenna array and the transceiver. The second antenna array is disposed on the base and electrically coupled to the first antenna array. The second antenna array is configured to receive or transmit a second radio frequency signal along a second orientation. The first radio frequency signal is transmitted between the second antenna array and the transceiver, via the first antenna array.

Examples disclosed herein relate to an antenna system in a radar system for object detection with a sounding signal. The antenna system includes a radiating array of elements configured to transmit a reference signal and an antenna controller coupled to the radiating array of elements. The antenna controller is configured to detect a set of reflections of the reference signal from an object. The antenna is configured to determine a location of the object and a mobility status from the set of reflections. The antenna controller is also configured to generate signaling indicating the location and mobility status of the object as output to identify a target object different from the object. Other examples disclosed herein relate to a radar system and a method of object detection with the radar system.

An antenna system that includes a plurality of lens sets. Each lens set includes a lens and at least one feed element. At least one feed element is aligned with the lens and configured to direct a signal through the lens at a desired direction.

A beam steering antenna is provided in a user terminal for satellite communications. The beam steering antenna includes an antenna feed structure having a plurality of feed elements configured to be switched on or off to form an initial beam, and a focus lens positioned adjacent to the antenna feed structure to form a focused beam. The antenna feed structure may include a plurality of active waveguide feed elements to generate a circularly polarized initial beam. The focus lens may be a spherical lens to form a circularly polarized focused beam.