Feeding Circuit Layout for 4 x 4 linear AoX arrays

    公开(公告)号:US20220416440A1

    公开(公告)日:2022-12-29

    申请号:US17830548

    申请日:2022-06-02

    摘要: A printed circuit board having an AoX antenna array and a feeding circuit is disclosed. The AoX antenna array has patch antenna disposed on a top layer of the printed circuit board, while the feeding circuit is disposed on the bottom layer. The signal traces that connect the ports of the antenna unit cells to the antenna selection switches are routed so that all are roughly equal in length with a minimal length of parallel sections between signal traces. Thus, the signal traces in the feeding circuit are created so as to minimize phase difference between signal traces and to minimize coupling. Coplanar waveguides, which utilize blind vias are used to further reduce coupling.

    Metamaterial Antenna Array With Isolated Antennas

    公开(公告)号:US20220416436A1

    公开(公告)日:2022-12-29

    申请号:US17356853

    申请日:2021-06-24

    IPC分类号: H01Q21/00 H01Q9/04 H01Q1/48

    摘要: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. Furthermore, this new antenna array also requires less space than conventional antenna arrays.

    Metamaterial antenna array with isolated antennas and ground skirt along the perimeter

    公开(公告)号:US12009597B2

    公开(公告)日:2024-06-11

    申请号:US17830536

    申请日:2022-06-02

    IPC分类号: H01Q21/06 H01Q9/04 H01Q15/00

    摘要: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. A ground skirt surrounds the perimeter of the antenna array to improve radiation phase pattern balance within the array.

    Rotational Symmetric AoX Antenna Array with Metamaterial Antennas

    公开(公告)号:US20230420869A1

    公开(公告)日:2023-12-28

    申请号:US17846594

    申请日:2022-06-22

    摘要: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. Furthermore, this new antenna array also requires less space than conventional antenna arrays.

    Metamaterial Antenna Array with Isolated Antennas And Ground Skirt Along the Perimeter

    公开(公告)号:US20220416439A1

    公开(公告)日:2022-12-29

    申请号:US17830536

    申请日:2022-06-02

    IPC分类号: H01Q21/06 H01Q15/00 H01Q9/04

    摘要: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. A ground skirt surrounds the perimeter of the antenna array to improve radiation phase pattern balance within the array.

    Rotational symmetric AoX antenna array with metamaterial antennas

    公开(公告)号:US11978962B2

    公开(公告)日:2024-05-07

    申请号:US17846594

    申请日:2022-06-22

    摘要: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. Furthermore, this new antenna array also requires less space than conventional antenna arrays.

    Wide band loop type ground radiating antenna

    公开(公告)号:US11721902B2

    公开(公告)日:2023-08-08

    申请号:US17325548

    申请日:2021-05-20

    IPC分类号: H01Q1/48 H01Q7/00

    CPC分类号: H01Q7/00 H01Q1/48

    摘要: A loop type ground radiating antenna having dual resonance is disclosed. The antenna including a feeding path that traverses the ground clearance, creating a first portion and a second portion. One or more first capacitors are disposed along a first conductive path between the ground clearance and the edge of the ground layer, proximate the first portion, while one or more second capacitors are disposed along a second conductive path between the ground clearance and the edge of the ground layer, proximate the second portion. An input capacitor is used to feed the feeding path. The values of the input capacitor and the first capacitors determine a resonant frequency of the first feeding loop, while the values of the input capacitor and the second capacitors determine a resonant frequency of the second feeding loop. By proper selection of the capacitor values, a wide bandwidth may be created.

    Metamaterial antenna array with isolated antennas

    公开(公告)号:US11611152B2

    公开(公告)日:2023-03-21

    申请号:US17356853

    申请日:2021-06-24

    摘要: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. Furthermore, this new antenna array also requires less space than conventional antenna arrays.