Systems, devices and methods of transmission line calibration for antenna array systems

    公开(公告)号:US11662429B2

    公开(公告)日:2023-05-30

    申请号:US17074312

    申请日:2020-10-19

    IPC分类号: G01S7/40 H01Q3/26

    摘要: There are provided methods and systems configured to perform calibration of antenna array systems, for example during production, avoiding the use of external setups or external measurements. The method comprising: (i) measuring the delay of a dedicated calibration transmission line for each SUT, for example during production, using internal built-in system capabilities; (ii) comparing the measured delay to a known delay of an identical transmission line of a reference system; (iii) computing, based on this comparison, compensation values with respect to the reference system of delay (or phase), for all transmission lines of the SUT; (iv) calibrating the SUT using the computed compensation values for all transmission lines of the SUT.

    PRINTED CIRCUIT BOARD INCLUDING A SUBSTRATE INTEGRATED WAVEGUIDE HAVING CHANNELS FORMED BY VERTICALLY OVERLAPPING CYLINDRICAL CAVITIES

    公开(公告)号:US20230011894A1

    公开(公告)日:2023-01-12

    申请号:US17947347

    申请日:2022-09-19

    发明人: Naftali CHAYAT

    IPC分类号: H01P3/12 H05K1/02 H05K1/11

    摘要: A printed circuit board is provided, comprising a horizontally extending dielectric substrate and a substrate integrated waveguide (SIW) having at least one ridge. The SIW comprises two horizontally disposed conductive ground planes spaced by a vertical distance, and two vertically disposed conductive fences spanning therebetween. The fences extend in a first horizontal direction, and are spaced from one another in a second horizontal direction, perpendicular to the first horizontal direction. At least one of the fences comprises a plurality of horizontally disposed conductive strips vertically spaced from one another and extending in the first horizontal direction. At least some of the conductive strips are ridge-strips constituting the ridge and extending in the second horizontal direction toward the other of the fences.