Calibrating a phased array system

    公开(公告)号:US10903567B2

    公开(公告)日:2021-01-26

    申请号:US15997048

    申请日:2018-06-04

    Abstract: A method for calibration in a phased array antenna includes generating, by a master clock, a reference clock signal and generating an output signal corresponding to the reference clock signal by a phase-locked loop. The method further includes generating, by a local oscillator (LO), an LO signal corresponding to the output signal and generating a transmit calibration tone corresponding to a leakage of the LO signal and a direct current signal by an in-phase and quadrature (IQ) modulator. The method further includes receiving, by a phase detector in each of a plurality of RF devices in the phased array antenna, the transmit calibration tone and determining a relative phase shift between the transmit calibration tone and the reference clock signal received at an input of each of the plurality of RF devices by the phase detector.

    Multimode Communication and Radar System Resource Allocation

    公开(公告)号:US20210080580A1

    公开(公告)日:2021-03-18

    申请号:US16574551

    申请日:2019-09-18

    Abstract: A wireless multimode system includes: an array of N antenna elements that includes a first portion of M antenna elements and a second portion of L antenna elements; M transmission amplifiers configured to transmit, via the M antenna elements, frames of transmit data, where the frames of transmit data include transmit radar signals and transmit communication signals; M reception amplifiers configured to receive, via the M antenna elements, frames of receive data, where the frames of receive data includes receive communication signals; and L reception amplifiers configured to receive, via the L antenna elements, receive radar signals; and a resource scheduler configured to allocate bandwidth for transmit radar signals and transmit communication signals within the frames of transmit data based on one or more predetermined parameters.

    Multimode Communication and Radar System Resource Allocation

    公开(公告)号:US20230393275A1

    公开(公告)日:2023-12-07

    申请号:US18454303

    申请日:2023-08-23

    Abstract: A wireless multimode system includes: an array of N antenna elements that includes a first portion of M antenna elements and a second portion of L antenna elements; M transmission amplifiers configured to transmit, via the M antenna elements, frames of transmit data, where the frames of transmit data include transmit radar signals and transmit communication signals; M reception amplifiers configured to receive, via the M antenna elements, frames of receive data, where the frames of receive data includes receive communication signals; and L reception amplifiers configured to receive, via the L antenna elements, receive radar signals; and a resource scheduler configured to allocate bandwidth for transmit radar signals and transmit communication signals within the frames of transmit data based on one or more predetermined parameters.

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