Characterizing Antenna Patterns
    1.
    发明申请

    公开(公告)号:US20180183529A1

    公开(公告)日:2018-06-28

    申请号:US15392937

    申请日:2016-12-28

    Applicant: Facebook, Inc.

    Abstract: In one embodiment, a method includes determining a received power at a receiving antenna mounted to an antenna measurement system from a transmitting antenna mounted to a device under test (DUT) in motion relative to the antenna measurement system; determining one or more first orientation parameters of the antenna measurement system; determining one or more second orientation parameters of the DUT; and determining an antenna pattern of the transmitting antenna based on the received power, the first orientation parameters, and the second orientation parameters.

    Circular polarization antenna array

    公开(公告)号:US10804609B1

    公开(公告)日:2020-10-13

    申请号:US16543487

    申请日:2019-08-16

    Applicant: Facebook, Inc.

    Abstract: Apparatuses, methods, and systems for an antenna element are disclosed. For an embodiment, the antenna element includes a feed line layer, a first substrate adjacent to the feed line layer, a ground layer adjacent to the first substrate, a second substrate adjacent to the ground layer, and a third layer adjacent to the second substrate. The feed line layer includes a conductive fork-shape that includes a conductive handle adapted to be electrically connected to a center conductor of a coaxial line, a conductive cross-section that crosses an end portion of the conductive handle, and a plurality of conductive fingers. For an embodiment, a rectangular slot is formed in the ground layer, wherein a length of the rectangular slot is perpendicular to the conductive handle. For an embodiment, the third layer includes four parasitic elements, wherein each parasitic element is electrically connected to the ground layer through a shorting via.

    Tunable passive time-delay structure for adjusting a direction of a beamforming pattern

    公开(公告)号:US10560166B2

    公开(公告)日:2020-02-11

    申请号:US16449357

    申请日:2019-06-22

    Applicant: Facebook, Inc.

    Abstract: Apparatuses, methods, and systems for beamforming using tunable passive time-delay structures are disclosed. One apparatus includes a node, wherein the node includes a passive time-delay structure, wherein the passive time-delay structure is operative to generate a plurality of delayed signals, wherein each of the plurality of delayed signals is a delayed version of a communication signal, a tunable element, the tunable element operative to introduce a variable delay to the communication signal propagating through the passive time-delay structure, an antenna array, wherein the antenna array generates a beamforming pattern corresponding the passive time-delay structure, and a phase delay adjust control operative to adjust the tunable element of the passive time-delay structure, wherein a direction of the one or more beams of the beamforming pattern changes depending upon tuning of the tunable element.

    Beamforming using passive time-delay structures

    公开(公告)号:US10382112B2

    公开(公告)日:2019-08-13

    申请号:US16010414

    申请日:2018-06-16

    Applicant: Facebook, Inc.

    Abstract: Apparatuses, methods, and systems for beamforming to multiple users using switched passive time-delay structures are disclosed. One method includes an input switch that receives a plurality of input signals for transmission. Further, the apparatus includes a plurality of passive time-delay structures, wherein the input switch selectively connects the plurality of input signals to at least one of the plurality of passive time-delay structures, and wherein each of the passive time-delay structures is preconfigured to provide a plurality of delayed signals wherein each of the plurality of delayed signals is a delayed version of a one of the plurality of input signals. The apparatus further includes an antenna array, wherein the antenna array receives the plurality of delayed signals of the passive time-delay structures, and generates a beamforming pattern corresponding with a selected one of the passive time-delay structures.

    Characterizing antenna patterns
    6.
    发明授权

    公开(公告)号:US11044025B1

    公开(公告)日:2021-06-22

    申请号:US16721874

    申请日:2019-12-19

    Applicant: FACEBOOK INC.

    Abstract: in one embodiment, a method includes determining a received power at a receiving antenna mounted to an antenna measurement system from a transmitting antenna mounted to a device under test (DUI) in motion relative to the antenna measurement system; determining one or more first orientation parameters of the antenna measurement system; determining one or more second orientation parameters of the DUT; and determining an antenna pattern of the transmitting antenna based on the received power, the first orientation parameters, and the second orientation parameters.

    Characterizing antenna patterns
    7.
    发明授权

    公开(公告)号:US10547395B2

    公开(公告)日:2020-01-28

    申请号:US15392937

    申请日:2016-12-28

    Applicant: Facebook, Inc.

    Abstract: In one embodiment, a method includes determining a received power at a receiving antenna mounted to an antenna measurement system from a transmitting antenna mounted to a device under test (DUT) in motion relative to the antenna measurement system; determining one or more first orientation parameters of the antenna measurement system; determining one or more second orientation parameters of the DUT; and determining an antenna pattern of the transmitting antenna based on the received power, the first orientation parameters, and the second orientation parameters.

    TUNABLE PASSIVE TIME-DELAY STRUCTURE FOR ADJUSTING A DIRECTION OF A BEAMFORMING PATTERN

    公开(公告)号:US20190312620A1

    公开(公告)日:2019-10-10

    申请号:US16449357

    申请日:2019-06-22

    Applicant: Facebook, Inc.

    Abstract: Apparatuses, methods, and systems for beamforming using tunable passive time-delay structures are disclosed. One apparatus includes a node, wherein the node includes a passive time-delay structure, wherein the passive time-delay structure is operative to generate a plurality of delayed signals, wherein each of the plurality of delayed signals is a delayed version of a communication signal, a tunable element, the tunable element operative to introduce a variable delay to the communication signal propagating through the passive time-delay structure, an antenna array, wherein the antenna array generates a beamforming pattern corresponding the passive time-delay structure, and a phase delay adjust control operative to adjust the tunable element of the passive time-delay structure, wherein a direction of the one or more beams of the beamforming pattern changes depending upon tuning of the tunable element.

    Processsing of beamforming signals of a passive time-delay structure

    公开(公告)号:US10236961B2

    公开(公告)日:2019-03-19

    申请号:US16010415

    申请日:2018-06-16

    Applicant: Facebook, Inc.

    Abstract: Apparatuses, methods, and systems for processing beamforming signals of a passive time-delay structure are disclosed. One apparatus includes a node that includes baseband processing circuitry that is operative to receive and processes transmission signals, a passive time-delay structure that is preconfigured to generate a plurality of output signal, an antenna array, wherein the antenna array is operative to receive and transmit the plurality of output signals of the passive time-delay structure, wherein delays of the passive time-delay structure provide for the formation of a beamforming pattern by the transmitted plurality of output signals, and a controller. The controller is operative to determine a characterization of the beamforming pattern. The baseband processing circuitry operates to process the transmission signals based at least in part on the characterization of the beamforming pattern, and the node transmits the processed transmission signals to the one or more transceivers.

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