A lensed multi-beam base station antenna may include a plurality of linear arrays of radiating elements, a plurality of reflectors, a sidelobe suppressor, and a lens. Each array may include a plurality of radiating elements (e.g., two or more radiating elements) that extends forwardly from a planar section of a respective reflector. The sidelobe suppressor may comprise radiofrequency (RF) absorber material that absorbs energy that is emitted by a first of the arrays and that is directed toward a reflector underneath a second of the arrays. The sidelobe suppressor may comprise a RF choke that reduces the RF energy emitted by a first of the arrays that is directed toward a reflector underneath a second of the arrays.

A reflectarray antenna system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector having a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.

A reflectarray antenna system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector having a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.

An electromagnetic device includes: a first electromagnetic, EM, signal feed; a second EM signal feed disposed adjacent to the first EM signal feed; and, an elevated electrically conductive region disposed between and elevated relative to the first and second EM signal feeds.

An electromagnetic device includes: a first electromagnetic, EM, signal feed; a second EM signal feed disposed adjacent to the first EM signal feed; and, an elevated electrically conductive region disposed between and elevated relative to the first and second EM signal feeds.

Provided herein are systems and methods for implementing an over-the-air neural network (OANN) including by receiving, at a relay receiver of a relay node, a signal of interest from a transmitter, directionally re-transmitting the signal of interest from each of a plurality of relay transmitters of the relay node to a corresponding one of a plurality of programmable reconfigurable intelligent surfaces (RIS), reflecting, by each of the plurality of RIS, the corresponding re-transmitted signal of interest, and adjusting, by a neural network controller, a reflection angle of each of the plurality of RIS to direct the reflected signals of interest to combine in a deterministic manner at the relay receiver.

Provided herein are systems and methods for implementing an over-the-air neural network (OANN) including by receiving, at a relay receiver of a relay node, a signal of interest from a transmitter, directionally re-transmitting the signal of interest from each of a plurality of relay transmitters of the relay node to a corresponding one of a plurality of programmable reconfigurable intelligent surfaces (RIS), reflecting, by each of the plurality of RIS, the corresponding re-transmitted signal of interest, and adjusting, by a neural network controller, a reflection angle of each of the plurality of RIS to direct the reflected signals of interest to combine in a deterministic manner at the relay receiver.

Wireless communications systems and methods related to information associated with a reconfigurable intelligent surface (RIS) in a wireless communication network are provided. For example, a method of wireless communication performed by a wireless communications device may include transmitting, to a reconfigurable intelligent surface (RIS), a request for information associated with the RIS and receiving, from the RIS, the information. Other features are also claimed and described.

Wireless communications systems and methods related to information associated with a reconfigurable intelligent surface (RIS) in a wireless communication network are provided. For example, a method of wireless communication performed by a wireless communications device may include transmitting, to a reconfigurable intelligent surface (RIS), a request for information associated with the RIS and receiving, from the RIS, the information. Other features are also claimed and described.

A horn feed including: a central conduit extending axially in a first direction from a first portion that is configured to be relatively distal from a sub-reflector and including a first aperture and a second portion that is configured to be relatively proximal to the sub-reflector and including a second aperture; and an interface configured to connect to a dielectric support including an outer cylindrical dielectric wall of a substantially cylindrical shape and an inner cylindrical dielectric wall of a substantially cylindrical shape, wherein the central conduit, the outer cylindrical dielectric wall and the inner cylindrical dielectric wall are co-axial.