知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.018 seconds)

    Over-the-air testing of millimeter wave antenna arrays
    1.
    发明授权
    Over-the-air testing of millimeter wave antenna arrays 有权

    公开(公告)号：US11515950B2

    公开(公告)日：2022-11-29

    申请号：US17464170

    申请日：2021-09-01

    Applicant: NATIONAL INSTRUMENTS CORPORATION

    Inventor： Martin Laabs ,  Dirk Plettemeier ,  Thomas Deckert ,  Johannes Dietmar Herbert Lange ,  Marc Vanden Bossche

    IPC: H04B17/00 ,  H04B17/10 ,  H01Q21/06

    Abstract: A system and method for testing (e.g., rapidly and inexpensively) devices such as integrated circuits (IC) with integrated antennas configured for millimeter wave transmission and/or reception. The method may first perform a calibration operation on a reference device under test (DUT). The calibration operation may determine a set of reference DUT FF base functions and may also generate a set of calibration coefficients. After the calibration step using the reference DUT, the resulting reference DUT FF base functions and the calibration coefficients (or reconstruction matrix) may be used in determining far-field patterns of DUTs based on other field measurements, e.g., measurements taken in the near field of the DUT.

    Combining Signals Transmitted from Multiple Probe Antennas in Over-the-Air Antenna Measurements
    2.
    发明申请
    Combining Signals Transmitted from Multiple Probe Antennas in Over-the-Air Antenna Measurements 有权

    公开(公告)号：US20240372633A1

    公开(公告)日：2024-11-07

    申请号：US18311335

    申请日：2023-05-03

    Applicant: NATIONAL INSTRUMENTS CORPORATION

    Inventor： Thomas Deckert ,  Martin Obermaier ,  Dirk Plettemeier

    IPC: H04B17/00 ,  G01R29/08 ,  H04B17/16

    Abstract: A system and method for testing an antenna-under-test (AUT). A multi-probe antenna array transmitter is moved to a plurality of positions within a scan area. At each position, each probe antenna element of the transmitter transmits a near-field (NF) over-the-air (OTA) signal to the AUT. An alignment procedure is performed to align transmission locations for signals transmitted by different ones of the plurality of probe antenna elements. Correction factors are determined that characterize amplitude and phase discrepancies between the probe antenna elements of the transmitter. The correction factors are applied to the signals, and the corrected signals are combined at each transmission location to obtain average signals. A far-field (FF) reception pattern for the AUT is determined based on a discrete Fourier transform of the average signals and stored in a non-transitory computer readable memory medium.

    Hardware timed over-the-air antenna characterization
    3.
    发明授权
    Hardware timed over-the-air antenna characterization 有权

    公开(公告)号：US10942214B2

    公开(公告)日：2021-03-09

    申请号：US16141697

    申请日：2018-09-25

    Applicant: NATIONAL INSTRUMENTS CORPORATION

    Inventor： Gerardo Orozco Valdes ,  Thomas Deckert ,  Johannes D. H. Lange ,  Christopher N. White ,  Karl F. Grosz

    IPC: G01R31/28 ,  H04B17/21 ,  G01R1/073 ,  H01L21/66

    Abstract: Antenna characterization systems and methods are described for hardware-timed testing of integrated circuits (IC) with integrated antennas configured for over-the-air transmission and/or reception. An IC to be tested (e.g., the device under test (DUT)) may be mounted to an adjustable positioner in an anechoic chamber. Radio frequency (RF) characteristics (e.g., including transmission characteristics, reception characteristics, and/or beamforming characteristics) of the IC may be tested over-the-air using an array of antennas or probes within the anechoic chamber while continually transitioning the adjustable positioner through a plurality of orientations. Counters and reference trigger intelligence may be employed to correlate measurement results with orientations of the DUT.

    Hardware Timed Over-the-Air Antenna Characterization
    4.
    发明申请
    Hardware Timed Over-the-Air Antenna Characterization 审中-公开

    公开(公告)号：US20200096554A1

    公开(公告)日：2020-03-26

    申请号：US16141697

    申请日：2018-09-25

    Applicant: NATIONAL INSTRUMENTS CORPORATION

    Inventor： Gerardo Orozco Valdes ,  Thomas Deckert ,  Johannes D. H. Lange ,  Christopher N. White ,  Karl F. Grosz

    IPC: G01R31/28 ,  H01L21/66 ,  G01R1/073 ,  H04B17/21

    Abstract: Antenna characterization systems and methods are described for hardware-timed testing of integrated circuits (IC) with integrated antennas configured for over-the-air transmission and/or reception. An IC to be tested (e.g., the device under test (DUT)) may be mounted to an adjustable positioner in an anechoic chamber. Radio frequency (RF) characteristics (e.g., including transmission characteristics, reception characteristics, and/or beamforming characteristics) of the IC may be tested over-the-air using an array of antennas or probes within the anechoic chamber while continually transitioning the adjustable positioner through a plurality of orientations. Counters and reference trigger intelligence may be employed to correlate measurement results with orientations of the DUT.

    Over-the-Air Testing of Millimeter Wave Antenna Arrays
    7.
    发明申请
    Over-the-Air Testing of Millimeter Wave Antenna Arrays 有权

    公开(公告)号：US20220077938A1

    公开(公告)日：2022-03-10

    申请号：US17464170

    申请日：2021-09-01

    Applicant: NATIONAL INSTRUMENTS CORPORATION

    Inventor： Martin Laabs ,  Dirk Plettemeier ,  Thomas Deckert ,  Johannes Dietmar Herbert Lange ,  Marc Vanden Bossche

    IPC: H04B17/10

    Abstract: A system and method for testing (e.g., rapidly and inexpensively) devices such as integrated circuits (IC) with integrated antennas configured for millimeter wave transmission and/or reception. The method may first perform a calibration operation on a reference device under test (DUT). The calibration operation may determine a set of reference DUT FF base functions and may also generate a set of calibration coefficients. After the calibration step using the reference DUT, the resulting reference DUT FF base functions and the calibration coefficients (or reconstruction matrix) may be used in determining far-field patterns of DUTs based on other field measurements, e.g., measurements taken in the near field of the DUT.

    Combining Signals Received from Multiple Probe Antennas in Over-the-Air Antenna Measurements
    8.
    发明申请
    Combining Signals Received from Multiple Probe Antennas in Over-the-Air Antenna Measurements 有权

    公开(公告)号：US20240369608A1

    公开(公告)日：2024-11-07

    申请号：US18311329

    申请日：2023-05-03

    Applicant: NATIONAL INSTRUMENTS CORPORATION

    Inventor： Thomas Deckert ,  Martin Obermaier ,  Dirk Plettemeier

    IPC: G01R29/08

    Abstract: A system and method for testing an antenna-under-test (AUT). A multi-probe antenna array receiver is moved to a plurality of positions within a scan area. At each position, each probe antenna element of the receiver receives a near-field (NF) over-the-air (OTA) signal from the AUT. An alignment procedure is performed to align reception locations for signals received by different ones of the plurality of probe antenna elements. Correction factors are determined that characterize amplitude and phase discrepancies between the probe antenna elements of the receiver. The correction factors are applied to the received signals, and the corrected signals are combined at each reception location to obtain average signals. A far-field (FF) transmission pattern for the AUT is determined based on a discrete Fourier transform of the average signals and stored in a non-transitory computer readable memory medium.

Patent Agency Ranking