Transmit-receive isolation for a dual-polarized MIMO antenna array

    公开(公告)号:US12191564B2

    公开(公告)日:2025-01-07

    申请号:US17815908

    申请日:2022-07-28

    Abstract: An apparatus includes a substrate, a first antenna panel, a second antenna panel, and an antenna isolator. The first antenna panel is coupled on the substrate and includes an array of first antenna elements. The second antenna panel is coupled on the substrate and includes an array of second antenna elements. The antenna isolator is coupled on the substrate and including a plurality of walls extending outwardly from the substrate along a length of the substrate between the first antenna panel and the second antenna panel. The antenna isolator reduces reduce wave propagation between the array of first antenna elements and the array of second antenna elements.

    Multi-layer reconfigurable surface for an antenna

    公开(公告)号:US11843171B2

    公开(公告)日:2023-12-12

    申请号:US17384684

    申请日:2021-07-23

    CPC classification number: H01Q15/148 H04B7/04013

    Abstract: A multi-layer reconfigurable reflective intelligent surface (RIS). The RIS includes a unit-cell of a reconfigurable intelligent surface. The unit-cell includes a first layer composed of a conductive material and structured according to a sub-wavelength reflective pattern. The first layer reflects an impinging wave at a predetermined phase and steers the reflected impinging wave toward an intended receiver. The unit-cell includes a second layer composed of a first dielectric substrate material. Between the first and second layers, the unit-cell includes a middle layer composed of a second dielectric material having tunable dielectric properties. Tuning a dielectric constant of the second dielectric material modifies the predetermined phase of reflection of the impinging wave.

    METHOD AND APPARATUS FOR ANTENNA PORT SWITCHING IN NEAR FIELD LOS MIMO

    公开(公告)号:US20220376754A1

    公开(公告)日:2022-11-24

    申请号:US17676707

    申请日:2022-02-21

    Abstract: A system and method for an efficient port switching technique for line-of-sight multiple-input multiple-output communications by a base station is provided. The base station includes an antenna array comprising a first number of antenna ports. The base station also includes a transceiver configured to communicate in a wireless communication medium. The base station further includes a processor. The processor is configured to determine, based on the wireless communication medium, one or more parameters of the base station or a receive base station. The processor also is configured to select, based on the one or more first parameters and one or more second parameters, a second number of antenna ports to perform a communication with the receive base station.

    Integrated two dimensional active antenna array communication system
    25.
    发明授权
    Integrated two dimensional active antenna array communication system 有权
    集成二维有源天线阵列通信系统

    公开(公告)号:US09584231B2

    公开(公告)日:2017-02-28

    申请号:US14817018

    申请日:2015-08-03

    Abstract: A base station (BS) capable of communication with a number of transmission points includes a processor configured to control a beamforming transmission or reception and an integrated antenna array system. The integrated antenna array system includes a baseband signal processing unit configured to perform baseband functions and disposed between the two sections. The integrated antenna array system also includes a plurality of physical antenna elements disposed in groups. Each of the groups includes an equal number of the plurality of physical antenna elements. The plurality of physical antenna elements are disposed symmetrically around the baseband signal processing unit.

    Abstract translation: 能够与多个传输点通信的基站(BS)包括配置成控制波束形成传输或接收的处理器和集成天线阵列系统。 集成天线阵列系统包括被配置为执行基带功能并设置在两个部分之间的基带信号处理单元。 集成天线阵列系统还包括以组为单位设置的多个物理天线元件。 每个组包括相等数量的多个物理天线元件。 多个物理天线元件围绕基带信号处理单元对称设置。

    POSITIONING BASED SYSTEM DESIGN FOR SMART REPEATERS WITH ADAPTIVE BEAMFORMING CAPABILITIES

    公开(公告)号:US20240120984A1

    公开(公告)日:2024-04-11

    申请号:US18474152

    申请日:2023-09-25

    CPC classification number: H04B7/06952 H04B7/15507 H04W64/00

    Abstract: A method for positioning based system design for smart repeaters with adaptive beamforming capabilities is implemented by an electronic device. In certain embodiments, the electronic device is a smart repeater. The method includes obtaining user equipment (UE) location information indicating a location of a UE. The method includes translating, based on a prediction engine, the UE location information to a beam index associated with a beam to serve the UE at the location of the UE. The method includes receiving, from an external communication device via a first wireless communication channel, traffic intended for the UE. The method includes forward-transmitting, via a second wireless communication channel, the traffic via the beam formed at a transmit (TX) antenna of the electronic device.

    RECONFIGURABLE INTELLIGENT SURFACES (RIS) ASSISTED LINE-OF-SIGHT (LOS) MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) FOR RANGE EXTENSION AT TERAHERTZ (THZ)

    公开(公告)号:US20230344506A1

    公开(公告)日:2023-10-26

    申请号:US18167016

    申请日:2023-02-09

    CPC classification number: H04B7/145 H01Q15/14

    Abstract: A method, implemented by a processor connected to a reconfigurable intelligent surface (RIS) system that includes one or more RISs, includes detecting one or more wireless control signals from a transmitter. The method includes identifying a channel state and one or more phases based on the detected wireless control signals; improving a beam-steering reflection matrix (Φ) of the RIS system based on a singular value decomposition of channel matrices; and configuring the RIS system based on the Φ. Among the RISs, each RIS is configured to redirect an incident signal toward an antenna array of an intended receiver. The incident signal is received from the transmitter. Locations of the RIS and transmitter differ by a height placement value (hRIS). In a horizontal plane, the location of the RIS is a first distance (DTX-RIS) from the transmitter and a second distance (DRX-RIS) from the receiver.

    LOW-PROFILE FREQUENCY-SELECTIVE ANTENNA ISOLATION ENHANCEMENT FOR DUAL-POLARIZED MASSIVE MIMO ANTENNA ARRAY

    公开(公告)号:US20230052803A1

    公开(公告)日:2023-02-16

    申请号:US17815927

    申请日:2022-07-28

    Abstract: An apparatus can include a substrate, a first antenna panel, a second antenna panel and a wall isolator. The first antenna panel can be coupled on the substrate and comprising an array of first antenna elements. The second antenna panel can be coupled on the substrate comprising an array of second antenna elements. The wall isolator can be coupled on the substrate. The wall isolator can include a first EBG element and a second EBG element. The first EBG element can be positioned along an edge of the first antenna panel for a length of the substrate and configured to reduce surface wave propagation from the array of first antenna elements. The second EBG element can be positioned along an edge of the second antenna panel for a length of the substrate and configured to reduce surface wave propagation from the array of second antenna elements.

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