Multi-beam MIMO antenna systems and methods

    公开(公告)号:US11736329B2

    公开(公告)日:2023-08-22

    申请号:US18107406

    申请日:2023-02-08

    申请人: Matsing, Inc.

    摘要: This application proposes multi-beam antenna systems using spherical lens are proposed, with high isolation between antenna ports and compatible to 2×2, 4×4, 8×8 MIMO transceivers. Several compact multi-band multi-beam solutions (with wideband operation, 40% +, in each band) are achieved by creating dual-band radiators movable on the track around spherical lens and by placing of lower band radiators between spherical lenses. By using of secondary lens for high band radiators, coupling between low band and high band radiators is reduced. Beam tilt range and side lobe suppression are improved by special selection of phase shift and rotational angle of radiators. Resultantly, a wide beam tilt range (0-40 degree) is realized in proposed multi-beam antenna systems. Each beam can be individually tilted. Based on proposed single- and multi-lens antenna solutions, cell coverage improvements and stadium tribune coverage optimization are also achieved, together with interference reduction.

    Gain roll-off for hybrid mechanical-lens antenna phased arrays

    公开(公告)号:US11735816B2

    公开(公告)日:2023-08-22

    申请号:US16865123

    申请日:2020-05-01

    IPC分类号: H01Q3/04 H01Q19/06

    CPC分类号: H01Q3/04 H01Q19/06

    摘要: A hybrid mechanical-lens array antenna is described that can be configured with different orientations and arrangements of the plurality of lenses within the array to control and enhance the performance at different regions of scan. This can include the addition of a secondary array (a skirt) at a large tilt angle, tilting the primary array, tilting the individual lenses within the primary array, or any combination. These design choices, when holding the number of lens modules (and, therefore, cost and power consumption) constant, have the effect of changing the system height, reducing the boresight gain and increasing the gain at scan, with each option showing different trades of height and scan and boresight performance.

    A HIGH-GAIN, HEMI-SPHERICAL COVERAGE, MULTI-SIDED FLATTENED LUNEBURG LENS ANTENNA

    公开(公告)号:US20230187843A1

    公开(公告)日:2023-06-15

    申请号:US17926091

    申请日:2021-05-19

    IPC分类号: H01Q19/06 H01Q15/08 H01Q3/46

    CPC分类号: H01Q19/062 H01Q15/08 H01Q3/46

    摘要: A multiple flat sided modified Luneburg Lens antenna to provide a broadband and hemi-spherical coverage. The Modified Luneburg Lens antenna has a flat surface at the bottom and quadrilateral/hexagonal/octagonal/decagon/dodecagon flat surfaces at the sides (e.g., “cupcake shaped”) to manipulate the signal directivity of a radio frequency transmission or reception of interest in a plurality of octaves of bandwidth. The antenna may be configured with a Planar Ultra-Wideband Modular Array (PUMA) Antenna array structure with a broadband anti-reflective layer added between the two devices. The anti-reflective layer marries the two devices (lens and PUMA) and creates a broadband impedance matching between the new modified Luneburg lens antenna and dipoles of the PUMA array while maintaining the capability of the system to transmit and receive signals in a plurality of octaves of bandwidth.

    AUTOMOBILE RADARS BASED ON GRADIENT-INDEX LENS

    公开(公告)号:US20230091904A1

    公开(公告)日:2023-03-23

    申请号:US17908404

    申请日:2020-11-25

    申请人: Lunewave Inc.

    摘要: A sensing system is provided that includes a first sub-sensing system having a first azimuth plane. The first sub-sensing system includes a Gradient-index lens, and a first plurality of antenna elements arranged adjacent to the Gradient-index lens and configured to receive a first signal emanating from a first field of view. The sensing system also includes a second sub-sensing system having a second azimuth plane oriented at an angle with respect to the first azimuth plane and a second plurality of antenna elements configured to receive a second signal emanating from a second field of view.