Twin-beam base station antennas are provided. A twin-beam base station antenna includes a plurality of vertical columns of radiating elements that are configured to transmit radio frequency signals in a frequency band. The radiating elements have bent metal radiator arms including tip portions that face respective center axes of the radiating elements.

Embodiments of a microelectronic assembly comprise a plurality of transceiver modules, each transceiver module including a first antenna; a printed circuit board (PCB); and a reflector module coupled to the PCB and separated from the plurality of transceiver modules by a space. The reflector module comprises: a substrate having a first side and an opposing second side, the first side being proximate to the plurality of transceiver modules, an antenna-array on the first side of the substrate, the antenna-array including a plurality of second antennas; a first integrated circuit (IC) die on the second side of the substrate; and a second IC die on the second side of the substrate. The first IC die comprises radio frequency (RF) switches configured to operate at electromagnetic frequencies between 20 kHz and 1 THz, and the second IC die comprises memory cell arrays and digital logic circuits.

This disclosure provides a feed network, an antenna apparatus, and a communication device. A main portion is disposed with a first electric-conductor and a second electric-conductor. In addition, two branch portions are disposed, one end of a first branch portion is electrically connected to the first electric-conductor, and one end of a second branch portion is electrically connected to the second electric-conductor. In this way, when two radiation parts in a same polarization direction of a radiating element are electrically connected to the first branch portion and the second branch portion respectively, a transmission structure of the feed network may feed two radio frequency signals, for example, two equi-amplitude phase-inverted radio frequency signals, into the two radiation parts of the radiating element respectively. The feed network in this embodiment of this application has a simple line, so that space occupied by the feed network in the antenna apparatus is reduced.

A driving method for an intelligent reflecting surface, the intelligent reflecting surface includes an output signal line and a reflector unit cell electrically connected to the output signal line and having a first electrode, a second electrode, and a liquid crystal layer provided between the first electrode and the second electrode. The driving method includes transmitting a common voltage to the second electrode in a plurality of consecutive subframe periods and transmitting an output signal to the reflector unit cell through a the output signal line. The output signal includes a voltage corresponding to a phase for reflecting an incident radio wave in a predetermined direction in each adjacent subframe period among the plurality of subframe periods. Each of the reflector unit cells receives the voltage in each adjacent subframe period among the plurality of subframe periods and generates one voltage using the plurality of voltages.

A base station antenna is provided. The base station antenna includes a reflector and a plurality of vertical columns of radiating elements that are on a surface of the reflector and are configured to transmit radio frequency (RF) signals in a frequency band. Facing radiator arms of respective radiating elements in adjacent columns among the plurality of vertical columns have tip portions that protrude in different directions relative to one another, with reference to the surface of the reflector.

The present invention relates to a high-frequency radiation unit and a multi-frequency base station antenna. The high-frequency radiation unit comprises a radiator, a vibrator base, a first feeding member and a second feeding member. The distance between a first vertical section and a center line is greater than the distance between a first balun and the center line, and the distance between a second vertical section and the center line is greater than the distance between a second balun and the center line, that is, the first vertical section is disposed on one side of the first balun away from the center line, and the second vertical section is disposed on one side of the second balun away from the center line.

Apparatuses and methods for a dual-pol antenna for increasing panel gain from limited aperture area for massive MIMO base station in a wireless communication system. A method of a base station (BS) in a wireless communication system includes transmitting polarized electro-magnetic (EM) waves in a direction of a Z-axis via an antenna panel comprising at least one dual polarized antenna and at least one three-dimensional (3D) end-fire antenna, wherein: the at least one dual polarized antenna includes a set of dual polarized antenna elements, at least one individual single polarized antenna element being configured based on a staggered configuration to form the set of dual polarized antenna elements; and the at least one 3D end-fire antenna is configured based on the set of dual polarized antenna elements, the 3D end-fire antenna being oriented in a direction of the Z-axis.

A redirecting rotating mirror arrangement includes a directional antenna subcomponent having a direction of maximum received or transmitted beam intensity. The redirecting rotating mirror arrangement also includes a rotatable mirror that reflects an electromagnetic beam to or from the directional antenna subcomponent. The rotatable mirror is inclined at an inclination angle with respect to a horizontal plane. The arrangement also includes a motor that rotates the rotatable mirror about the direction of maximum received or transmitted beam intensity such that the electromagnetic beam is either received from or transmitted to a range of angles as the rotatable mirror rotates.

Relay-aided intelligent reconfigurable surfaces (IRSs) are provided. A novel relay-aided intelligent surface architecture is described herein that has the potential of achieving the promising gains of IRSs with a much smaller number of elements, opening the door for realizing these surfaces in practice. A half-duplex or full-duplex relay is connected to one or more IRSs. This merges the gains of relays and reconfigurable surfaces and splits the required signal-to-noise ratio (SNR) gain between them. This architecture can then significantly reduce the required number of reconfigurable elements in the IRS(s) while achieving the same spectral efficiencies. Consequently, the proposed relay-aided intelligent surface architecture needs far less channel estimation/beam training overhead and provides enhanced robustness compared to traditional IRS solutions.

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.