Examples disclosed herein relate to a multi-layer, multi-steering (“MLMS”) antenna array for millimeter wavelength applications. The MLMS antenna array includes a superelement antenna array layer comprising a plurality of superelement subarrays. In some aspects, each superelement subarray of the plurality of superelement subarrays includes a plurality of phase compensated slots for radiating a transmission signal. The MLMS antenna array also includes a power division layer configured to serve as a feed to the superelement antenna array layer. The MLMS antenna array also includes a top layer disposed on the superelement antenna array layer. The top layer may include a superstrate or a metamaterial antenna array. Other examples disclosed herein include a radar system for use in an autonomous driving vehicle.

A light-transmissive antenna includes: a transparent base made of a transparent insulating material; and an antenna pattern formed on the transparent base. The antenna pattern is made of a transparent electrically conductive film that is a film-like member having a predetermined transmittance and a predetermined electrical conductivity. The light-transmissive antenna includes a plurality of highly electrically conductive patterns arranged on the antenna pattern, each of the highly electrically conductive patterns being made of an electrically conducive member having a higher electrical conductivity than the transparent electrically conductive film and formed in a linear shape. Each of the plurality of highly electrically conductive patterns has a predetermined width set equal to or smaller than a value assumed as a resolution of human eyes.

An electronic device according to an embodiment of the present invention may include a housing and an antenna module disposed on one surface of the housing, wherein the antenna module may include a printed circuit board including a first layer facing the one surface of the housing, a second layer facing the first layer, and at least one ground layer disposed between the first layer and the second layer, a first antenna array disposed on the first layer, a second antenna array disposed on the second layer and at least partially overlapping the first antenna array when viewed from the one surface of the housing, and a communication circuit (radio frequency integrated circuit (RFIC)) electrically connected to the first antenna array and the second antenna array and feeding the first antenna array and the second antenna array, wherein the communication circuit may be configured to receive a first signal from an external device via at least one of the first antenna array or the second antenna array, change a phase of at least a portion of the first antenna array and the second antenna array based on the first signal, and transmit/receive a second signal in a direction of a beam formed by the changed phase. Other various embodiments could be derived from the description.

An electronic device may include a circuit board, radiators disposed on the circuit board, and provided with a first feeding signal to transmit or receive a wireless signal in a first frequency band; and a ground disposed on the circuit board to provide a reference potential for the radiators. The radiators and a whole or a portion of the ground may be provided with an additional feeding signal to transmit or receive a wireless signal in various frequency bands that are lower than the first frequency band.

An apparatus, e.g. a hybrid antenna, includes a plurality of antenna arrays. Each array includes antenna elements, and each array is located on a polygonal antenna body such that each array faces a different direction. An RF network includes first and second duplexers and a divider. The first duplexer is configured to split a received multifrequency drive signal into a first component having a first frequency and a second component having a second frequency. The divider is configured to split the first component into attenuated portions, and to direct one of the attenuated portions to a first of the plurality of antenna arrays. The second duplexer is configured to combine another of the attenuated portions with the second drive signal component to form a combined drive signal component, and to direct the combined drive signal component to a second of the antenna arrays.

In an embodiment, an antenna includes a one-dimensional array of antenna cells, a signal feed, and signal couplers. The antenna cells are each spaced from an adjacent antenna cell by less than one half a wavelength at which the antenna cells are configured to transmit and to receive, are configured to generate an array beam that is narrower in a dimension than in an orthogonal dimension, and are configured to steer the array beam in the dimension. And the signal couplers are each configured to couple a respective one of the antenna cells to the signal feed in response a respective control signal having an active level. For example, the antenna cells can be arranged such that a straight line intersects their geometric centers.

A method for antenna selection and related products are provided. The method is applicable to a user terminal equipment including four internal-antenna groups and one external-antenna group. The four internal-antenna groups are distributed around a periphery of the user terminal equipment. Each internal-antenna group includes two internal antennas with different polarization directions. The external-antenna group is electrically coupled to the user terminal equipment. The method includes the following. Whether the user terminal equipment is coupled to the external-antenna group is determined. When the user terminal equipment is coupled to the external-antenna group and the external-antenna group is determined to be enabled, two target internal antennas are determined from any of the four internal-antenna groups or two adjacent internal-antenna groups among the four internal-antenna groups. A target antenna group is formed according to the two target internal antennas and two external antennas to receive and transmit radio frequency signals.

A reference signal distribution system is disclosed. The reference signal distribution system can include a power splitter to create, from a frequency-divided reference signal, a counterclockwise divided reference signal and a clockwise divided reference signal. The reference signal distribution system can include a distribution ring to provide the counterclockwise divided reference signal to a ring tap, and provide the clockwise divided reference signal to the ring tap. The reference signal distribution system can include a ring tap to produce a phase synchronization signal based the counterclockwise divided reference signal and the clockwise divided reference signal. The reference signal distribution system can include an analog regenerative frequency divider to produce a common phase reference signal based in part on the phase synchronization signal.

An elongate antenna assembly (1) for an aircraft including a structural section (3) and an antenna element (5), wherein the structural section (3) includes an elongate leading edge section (7) extending in a longitudinal direction (13) of the antenna assembly, a first lateral section (9), and a second lateral section (11), wherein the leading edge section (7) is curved such that the leading edge section (7) comprises a convex outer surface (15) extending in the longitudinal direction (13) of the antenna assembly (1) on a convex side (19) of the antenna assembly.

An antenna apparatus includes a ground pattern having a through-hole; an antenna pattern disposed above the ground pattern and configured to either one or both of transmit and receive a radio-frequency (RF) signal; a feed via penetrating through the through-hole and having one end electrically connected to the antenna pattern; and a meta member comprising a plurality of cells repeatedly arranged and spaced apart from each other, each of the plurality of cells comprising a plurality of conductive patterns, and at least one conductive via electrically connecting the plurality of conductive patterns to each other, wherein the meta member is disposed along at least portions of side boundaries of the antenna pattern above the ground pattern, and extends above the antenna pattern.