An antenna apparatus includes: a feed line; a first ground layer including surface disposed above or below the feed line and spaced apart from the feed line; and an antenna pattern electrically connected to an end of the feed line and configured to transmit and/or receive a radio frequency (RF) signal, wherein the first ground layer includes a first protruding region protruding in a first longitudinal direction of the surface toward the antenna pattern and at least partially overlapping the feed line above or below the feed line, and second and third protruding regions protruding in the first longitudinal direction from positions spaced apart from the first protruding region in opposite lateral directions of the surface.

A phase lag cell and an antenna including the same are disclosed. A phase lag cell according to one embodiment of the present invention comprises: a plane reflector; a substrate spaced apart and positioned at a predetermined distance from the reflector; and a phase lag circuit formed at one side of the substrate such that L-shaped patterns are formed to be vertically and horizontally symmetrical around a cross-shaped slot, and a stub having a predetermined length is extended from the end of each L-shaped pattern.

A system, in a programmable active reflector (AR) device associated with a first radio frequency (RF) device and a second RF device, receives a request and associated metadata from the second RF device via a first antenna array. Based on the received request and associated metadata, one or more antenna control signals are received from the first RF device. The programmable AR device is dynamically selected and controlled by the first RF device based on a set of criteria. A controlled plurality of RF signals is transmitted, via a second antenna array, to the second RF device within a transmission range of the programmable AR device based on the associated metadata. The controlled plurality of RF signals are cancelled at the second RF device based on the associated metadata.

An apparatus includes a fully integrated self-contained radio device including an antenna and an antenna element. The radio device and the antenna element are arranged such that a radio signal emitted by the antenna of the radio device is amplified in at least one predefined spatial direction.

Base station antennas include a reflector, a first linear array of radiating elements extending forwardly from the reflector, the radiating elements in the first linear array configured to operate in a first frequency band, and a second linear array of radiating elements extending forwardly from the reflector, the radiating elements in the second linear array configured to operate in the first frequency band. These antennas further include an isolation wall that is positioned in between the first linear array of radiating elements and the second linear array of radiating elements. This isolation wall comprises at least one partially reflective surface that is configured to reflect, on average as a function of frequency, between 20% and 80% of incident radiation in the first frequency band.

An antenna includes two radiators that are co-planar and exhibit mirror symmetry about an axis. Each radiator includes a half-Vivaldi sub-radiator bounded by a first curved edge and a first straight edge adjacent to the first curved edge. Each radiator also includes a curved monopole sub-radiator that is bounded by a second curved edge and a second straight edge adjacent to the second curved edge. The first and second straight edges coincide such that the first and second curved edges are continuous. When the antenna is driven at relatively high frequencies, the half-Vivaldi sub-radiators cooperate to act like a planar Vivaldi antenna. At lower frequencies, the curved monopole sub-radiators cooperate to act like a planar dipole antenna. Two of these antennas may be fabricated on circuit boards that intersect to form a dual-polarization antenna system.

Base station antennas include at least one passive internal grid reflector with an array of low band radiating elements projecting forward of a front one of the at least one grid reflector. A mMIMO antenna array resides behind a back one of the at least one grid reflector and is configured to transmit signal through the grid reflector and out a front radome of the base station antenna.

An antenna has a base body and a metallic conductive structure applied to the base body, wherein the base body comprises a flat cover portion and walls extending perpendicularly away from the cover portion. The conductive structure has at least one radiator provided at the cover portion, at least one feeding line for the at least one radiator and at least one ground portion, wherein the feeding line and the ground portion are provided at at least one of the walls. The radiator defines a radiator plane (R) and the feeding lines extend in at least one feeding plane (F), wherein the at least one feeding plane (F) is arranged perpendicularly to the radiator plane (R). Further, an antenna array and a mobile communication base station are shown.

The ceiling antenna includes a reflecting bottom plate, wherein the reflecting bottom plate has a via hole; a supporting plate, wherein the supporting plate is fixed to the reflecting bottom plate, and a plane where the supporting plate is located is perpendicular to a plane where the reflecting bottom plate is located; a radiation oscillator, wherein the radiation oscillator is adhered to the supporting plate, the radiation oscillator includes a first radiator, the first radiator has a grid-line-like structure, and a shape of an outer contour of the first radiator is a rectangle having at least one cut corner; and a connector, wherein the connector is located on one side of the reflecting bottom plate that is away from the radiation oscillator, the via hole exposes a part of area of the connector, and the connector is electrically connected to the radiation oscillator through the via hole.

According to various aspects, exemplary embodiments are disclosed herein of vehicular antenna assemblies and radome assemblies for vehicular antenna assemblies. In exemplary embodiments, a radome includes a mount along an inner surface of the radome. A reflector is mounted to the mount of the radome. The mount and the reflector are configured such that the reflector is operable for reflecting, refocusing, and/or directing satellite signals generally towards a satellite antenna of the vehicular antenna assembly when the radome is positioned over the satellite antenna.