System and method for over-the-air antenna calibration

    公开(公告)号:US11489252B2

    公开(公告)日:2022-11-01

    申请号:US17367175

    申请日:2021-07-02

    Inventor: Ersin Yetisir

    Abstract: An antenna calibration system for a phased array antenna in accordance with one embodiment of the present disclosure generally includes: a beamformer lattice including at least first and second beamformers, each corresponding to a subset of antenna cells, and each including a calibration section for comparing a reference signal to a non-reference signal; and a calibration antenna within the subset of antenna cells corresponding with the first beamformer, wherein the calibration antenna is configured to deliver a first reference signal (mTx) from the first beamformer to be received by a first operating antenna for comparison with a first non-reference signal (Rx) in the first beamformer or in the second beamfomer, and/or wherein the calibration antenna is configured to deliver a second non-reference signal (Tx) from a second operating antenna for comparison with a second reference signal (mRx) in the first beamformer or in the second beamformer.

    Near zero intermediate frequency (NZIF) compensation of local oscillator leakage

    公开(公告)号:US11431092B1

    公开(公告)日:2022-08-30

    申请号:US15931531

    申请日:2020-05-13

    Abstract: In an embodiment, a communications system includes a transmitter including a digital beamforming baseband section including a digital mixer, the digital beamforming section configured to receive an input signal to be transmitted, the input signal at a baseband frequency; and a modulation section electrically coupled to the digital beamforming baseband section, the modulation section including an up converter configured to receive a local oscillator signal at a local oscillator frequency. The digital mixer is configured to apply a baseband frequency shift to the input signal to generate a baseband frequency shifted input signal at a different frequency from the baseband frequency. The up converter is configured to up convert the baseband frequency shifted input signal based on the local oscillator signal to generate a modulated signal at a carrier frequency, wherein the local oscillator frequency is different from the carrier frequency.

    Antenna modules in phased array antennas

    公开(公告)号:US11309638B1

    公开(公告)日:2022-04-19

    申请号:US16858691

    申请日:2020-04-26

    Abstract: An apparatus includes a plurality of conductive structures having first sides and second sides opposite the first sides, wherein the second sides of the plurality of conductive structures are configured to be physically coupleable with a printed circuit board (PCB) of a receiver or a transmitter, and wherein the first sides of the plurality of conductive structures are configured to be spaced from the PCB; and an antenna having a first side and a second side opposite the first side, wherein the first side comprises a radiating side of the antenna and the second side of the antenna is disposed closer to the plurality of conductive structures than the first side of the antenna, wherein the second side of the antenna is configured to be spaced from the PCB by a second distance different from the first distance when the plurality of conductive structures is physically coupled with the PCB.

    SYSTEM AND METHOD OF PROVIDING MULTIPLE ANTENNAS TO TRACK SATELLITE MOVEMENT

    公开(公告)号:US20220011395A1

    公开(公告)日:2022-01-13

    申请号:US16927833

    申请日:2020-07-13

    Abstract: An example system can include a first antenna having a first orientation, a second antenna having a second orientation and a control system communicating with the first antenna and the second antenna. The control system performs operations which can include determining a pathway of a satellite, comparing the pathway to a first radiation pattern of the first antenna and a second radiation pattern of the second antenna, wherein the first antenna and the second antenna are each positioned such that a first keyhole of the first antenna does not overlap a second keyhole of the second antenna, to yield a comparison and selecting, based on the comparison, one of the first antenna or the second antenna to communicate with the satellite along the pathway.

    Beamformer lattice for phased array antennas

    公开(公告)号:US11146323B2

    公开(公告)日:2021-10-12

    申请号:US16276278

    申请日:2019-02-14

    Abstract: In embodiments, an apparatus includes a beamformer including a plurality of inputs and a plurality of outputs, a plurality of input vias, and a plurality of output vias. Each input of the plurality of inputs electrically couples to a respective input via of the plurality of input vias. Each output of the plurality of outputs electrically couples to a respective output via of the plurality of output vias. The beamformer is included in a first layer, wherein the plurality of input vias are configured to electrically couple to termination trace ends of a plurality of hierarchical networks provided on at least second and third layers, and wherein the plurality of hierarchical networks comprises at least three hierarchical networks.

    SELF-MULTIPLEXING ANTENNAS
    130.
    发明申请

    公开(公告)号:US20190252800A1

    公开(公告)日:2019-08-15

    申请号:US16276317

    申请日:2019-02-14

    Abstract: In one embodiment of the present disclosure, a self-multiplexing antenna includes a substrate, a first antenna element carried by the substrate, the first antenna element including a first antenna patch, and a first antenna reflector, a first signal feed connected with the first antenna patch, a second antenna element carried by the substrate, wherein the second antenna element is at least partially vertically aligned with the first antenna element, the second antenna element including a second antenna patch, and a second antenna reflector, a second signal feed connected with the second antenna patch, and a first isolator cavity between the second antenna reflector and the first antenna patch.

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