Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may transmit a first signal using a first antenna of the antenna array, the antenna array having a plurality of antennas that are arranged along a curved structure, wherein the curved structure is convex in a direction opposite a transmission direction, and wherein the first antenna is located at a first position on the curved structure so that the first signal has a first aperture with respect to the lens. The first network node may transmit a second signal using a second antenna of the plurality of antennas, wherein the second antenna is located at a second position on the curved structure so that the second signal has a second aperture with respect to the lens. Numerous other aspects are described.

Abstract: A steerable beam antenna includes a plurality of semiconductor chips arranged along a longitudinal axis. Each of the chips has a ground plane on its upper surface, and is doped to form an array of semiconductor switches arranged along the longitudinal axis. A corresponding array of scattering elements, each having a first leg and a second leg, is mounted on each chip along the longitudinal axis. A first electrode of each switch is configured for connection to a control circuit, a second electrode is connected to the ground plane, and a third electrode is connected to the first leg of one of the array of scattering elements, the second leg of which is connected to the ground plane. A dielectric element is mounted on the antenna chips along the longitudinal axis above the arrays of switches and scattering elements and is separated from the scattering elements by an air gap.

Abstract: An antenna device is supported by a supporting member. The antenna device includes a dielectric substrate and a patch antenna. The patch antenna comprises a radiating element and a ground conductor that are provided to the dielectric substrate. The linear conductor fixes a relative position between the antenna device and the supporting member in a direction orthogonal to a normal direction of the dielectric substrate. At least a part of the linear conductor is electromagnetically coupled with the patch antenna to act as a linear antenna.

Abstract: A radar system with antenna modules that have first and second planar slotted waveguide antenna arrays for radiating and receiving electromagnetic waves. A rotation system supports and rotates the antenna modules around a vertical axis. The modules are arranged back-to-back on opposite sides of a plane intersecting the vertical axis of rotation. Another radar system includes planar slotted waveguide antenna arrays with longitudinal extending waveguide columns. The front side of the columns holding the cavity slots of the first planar antenna array are positioned in a first plane and the front side of the columns holding the cavity slots of the second planar antenna array are positioned in a second plane parallel to the first plane. The arrays may be positioned at a distance to each other in a direction to the first and second planes. The parallel planes may be offset with a minimum perpendicular array distance.

Abstract: A septum orthomode transducer polarizer (SPOL) is presented comprising sidewall ridges which increase bandwidth in the presence of draft angles for injection molding manufacturing techniques. A SPOL with sidewall ridges is able to accommodate draft angles for injection molding while creating greater modal separation within the SPOL and increasing the resultant bandwidth. A horn aperture may be included with the SPOL, and the combined structure may be injection molded as a single part to realize significant cost and mass reductions.

Abstract: An antenna system for a vehicle includes a first antenna array affixed to the vehicle and a remote antenna system. A first connector is affixed to the vehicle, and is connected to the controllable switch. The remote antenna system includes a second antenna array including a second active antenna and a wiring harness. The wiring harness includes a second signal lead connected to the second active antenna, a ground lead, and a second connector. The signal lead and the ground lead connect the second active antenna of the second antenna array to the second connector. The first connector is connectable to the second connector, and the switch array communicates signals from the second antenna array to the on-vehicle controller when the second connector of the second antenna array is connected to the first connector.

Abstract: Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.

Abstract: A radar device includes: a transmitting antenna having at least one element antenna; and a receiving antenna having a plurality of element antennas. The plurality of element antennas of the receiving antenna are arranged at different positions in a first direction and a second direction perpendicular to the first direction. A distance between two adjacent element antennas among the plurality of element antennas of the receiving antenna in the first direction is equal to each other. A distance between two adjacent element antennas among the plurality of element antennas of the receiving antenna in the second direction is equal to each other.

Abstract: A communication device includes a display device, a phase tuning layer, and a mmWave (Millimeter Wave) module. The display device includes a first display portion and a second display portion. The pixel density of the first display portion is greater than that of the second display portion. The phase tuning layer is adjacent to the second display portion. The mmWave module generates a wireless signal. The wireless signal is propagated through the second display portion and the phase tuning layer.

Abstract: A magnetic field focusing assembly includes a magnetic field generating device configured to generate a magnetic field, and a split ring resonator assembly configured to be magnetically coupled to the magnetic field generating device and configured to focus the magnetic field produced by the magnetic field generating device.

Abstract: The dual frequency antenna element has electromagnetically resonant structure with plural attached current conductors each communicating on a different frequency band and producing a circularly polarized radiation pattern with respect to a propagation direction. A pattern shaper element fashioned using first and second conductive discs is positioned within the radiation pattern in alignment with the propagation direction. The discs are secured in a first spaced relation to each other and in a second spaced relation to the dual frequency antenna element. The respective disc surface areas, and the first and second spaced relations are cooperatively configured to passively modify the radiation pattern of the dual frequency antenna element to produce dual frequency band coverage of approximately 60 degrees centered about the longitudinal axis while substantially blocking coverage at 90 degrees to the longitudinal axis.

Abstract: A liquid crystal antenna unit and a liquid crystal phased array antenna are provided. The liquid crystal antenna unit includes: a first substrate, a second substrate opposite to the first substrate, a liquid crystal layer between the first substrate and the second substrate, a transmission line on a first surface and extending in a first direction along the first surface, a first antenna oscillator on the first surface and arranged as an elongated dipole extending in a second direction along the first surface, a second antenna oscillator on a surface of the second substrate distal to the first substrate and at a position corresponding to the first antenna oscillator, and a ground electrode on a surface of the first substrate distal to the second substrate.

Abstract: Aspects of the subject disclosure may include, for example, receiving, by a double trombone shifter device, signals relating to one or more crossed-dipole radiating elements of an antenna system, performing, by the double trombone shifter device, polarization rotation of the signals to derive output signals having polarizations that are rotated in a manner that results in a virtual physical rotation of the one or more crossed-dipole radiating elements, and providing, by the double trombone shifter device, the output signals to enable avoidance of interference. Other embodiments are disclosed.

Abstract: A set of antenna geometries for use in integrated arrays at terahertz frequencies are described. Two fabrication techniques to construct such antennas are presented. The first technique uses an advanced laser micro-fabrication, allowing fabricating advanced 3D geometries. The second technique uses photolithographic processes, allowing the fabrication of arrays on a single wafer in parallel.

Abstract: Eyewear including a dipole antenna having a first leg and a second leg, wherein the first leg includes at least a portion of a battery, such as a conductive case of the battery. An antenna feed is coupled to the dipole antenna between the second leg and the battery. The second leg may comprise a flexible printed circuit (FPC), and the second leg is an active leg. The second leg has a first portion and a second portion. The first portion and the second portion may have the same physical length. The first portion may be dielectrically loaded with a high permittivity loaded material, and the second portion may be dielectrically loaded with a low permittivity loaded material.

Abstract: Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.

Abstract: An antenna arrangement comprises a dual-polarised turnstile antenna, which comprises a first and a second dipole antenna element, which are aligned perpendicular to one another. The first and second dipole antenna elements each comprises two dipole halves. The dipole halves of both dipole antenna elements comprise a dipole section and a coupling section, which are galvanically connected to each other and to a first end of a ground connection medium or a signal connection medium. The coupling sections each extend along the closest dipole section of the adjacent other first and/or second dipole antenna element, wherein a spacing gap is formed between a coupling side of the respective coupling section of the first and/or second dipole antenna element and the respective adjacent dipole section of the second and/or dipole antenna element.

Abstract: Methods, systems, and devices for wireless communications are described. A communications device may transmit a first signal. The first signal may be transmitted from a first antenna array of the communications device through a lens of the communications device in a direction. An energy of a portion of the first signal may be below a threshold based on a position of a second antenna array of the communications device. The portion of the first signal may correspond to a portion of a reflection of the first signal that overlaps with the position of the second antenna array. The communications device may concurrently receive, at the second antenna array, a second signal originating from another direction, where the second signal may be focused in the direction of the second antenna array based on the lens.

Abstract: The disclosure is generally directed to a metal foam element configured to provide a multi-purpose functionality to an electrical device in a vehicle. An example apparatus in a vehicle includes a module that houses an electrical device. A metal foam element is attached to the module in a configuration whereby the metal foam element provides a multi-purpose functionality that includes a heat dissipation functionality and an antenna functionality. In an example implementation, the metal foam element is attached to the module in the form of a sheet that is dimensioned to operate as a patch antenna for transmitting and/or receiving a wireless signal associated with the electrical device and to provide a heat dissipation functionality for dissipating heat produced by the electrical device.

Abstract: An electronic power divider for radio frequency signals, and an electronic system containing such electronic power divider, includes one or more inputs designed to be fed by an electromagnetic radio frequency signal having a predetermined wavelength; at least two outputs for the radio frequency signal, each of which is connected to the same input; electric paths adapted to connect each output to the corresponding input, and a system of selective variation of the electric impedance associated with each of the electric paths during the passage of the signal. The impedance variation system is adapted to vary the impedance associated with the paths discreetly between a lower and an upper value, and to simultaneously maintain the value of the impedance associated with two or more paths at least at the lower value.