中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.024 seconds)

    OVER-THE-AIR CALIBRATION OF ANTENNA SYSTEM
    1.
    发明申请
    OVER-THE-AIR CALIBRATION OF ANTENNA SYSTEM 有权

    公开(公告)号：US20220278760A1

    公开(公告)日：2022-09-01

    申请号：US17747895

    申请日：2022-05-18

    Applicant: Space Exploration Technologies Corp.

    Inventor： David Francois Jacquet ,  Masoud Kahrizi ,  Robert Baummer, JR. ,  Jean-Noel Rozec ,  Fabrice Jean André Belvèze ,  Paul Lee Pearson ,  Francois Lucien Emile Icher ,  Marc Gens ,  Pascal Triaire

    IPC: H04B17/11 ,  H04B1/38

    Abstract: In an embodiment, an apparatus includes a transmit section including a first baseband section and a first radio frequency (RF) section, wherein the transmit section is configured to receive a calibration signal, the first RF section is configured to generate a RF calibration signal based on modulating the calibration signal. The calibration signal comprises an orthogonal code based signal; and a receive section configured to receive the RF calibration signal over-the-air, the receive section includes a second RF section and a calibration section, the second RF section is configured to generate a received calibration signal based on the RF calibration signal, the received calibration signal and a reference signal associated with the RF calibration signal comprise inputs to the calibration section and the calibration section is configured to determine one or more of gain, baseband delay, or RF delay compensation values, based on the inputs, to calibrate the transmit section.

    NEAR ZERO INTERMEDIATE FREQUENCY (NZIF) COMPENSATION OF LOCAL OSCILLATOR LEAKAGE
    6.
    发明申请
    NEAR ZERO INTERMEDIATE FREQUENCY (NZIF) COMPENSATION OF LOCAL OSCILLATOR LEAKAGE 有权

    公开(公告)号：US20220368014A1

    公开(公告)日：2022-11-17

    申请号：US17872964

    申请日：2022-07-25

    Applicant: Space Exploration Technologies Corp.

    Inventor： David Francois Jacquet ,  Marc Gens ,  Paul Lee Pearson ,  Pascal Triaire

    IPC: H01Q3/26 ,  H04B17/19 ,  H01Q3/42 ,  H04B1/00 ,  H04B17/12 ,  H01Q3/38

    Abstract: In an embodiment, a communications system includes a first transmitter including a digital beamforming baseband 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 and a first antenna of a phased array antenna. The modulation section is configured to receive a local oscillator signal at a first local oscillator frequency and apply a baseband frequency shift to the input signal to generate a baseband frequency shifted input signal. The modulation section generates a modulated signal based on the input signal. The communication system includes a second transmitter included in a second IC chip of the plurality of IC chips electrically coupled to a second antenna and configured to provide a second modulated signal at the carrier frequency and a second LO leakage signal at a second local oscillator frequency.

    Near zero intermediate frequency (NZIF) compensation of local oscillator leakage
    10.
    发明授权
    Near zero intermediate frequency (NZIF) compensation of local oscillator leakage 有权

    公开(公告)号：US11431092B1

    公开(公告)日：2022-08-30

    申请号：US15931531

    申请日：2020-05-13

    Applicant: Space Exploration Technologies Corp.

    Inventor： David Francois Jacquet ,  Marc Gens ,  Paul Lee Pearson ,  Pascal Triaire

    IPC: H04B1/00 ,  H01Q3/26 ,  H01Q3/42 ,  H01Q3/38 ,  H04B17/19 ,  H04B17/12

    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.

Patent Agency Ranking