MINIATURIZED WIDEBAND 3-WAY SPLITTERS FOR ULTRA-DENSE QUASI-OMNI BASE STATION ANTENNAS

    公开(公告)号:US20240363990A1

    公开(公告)日:2024-10-31

    申请号:US18687642

    申请日:2022-09-01

    IPC分类号: H01P5/12 H01Q1/38 H01Q21/20

    CPC分类号: H01P5/12 H01Q1/38 H01Q21/20

    摘要: Disclosed is a splitter for use in an ultra-dense multi-band antenna. The splitter comprises a first twelfth-wave transformer and a second twelfth-stage transformer coupled serially. The first twelfth-wave transformer stage has a split and two parallel paths, each of the two parallel paths having a meander structure, and wherein the second twelfth-wave transformer stage has a splitter junction and a plurality of splitter branches. By splitting the input to the first twelfth-wave transformer stage into two parallel paths, it is possible to provide a controlled input impedance while providing meander lines that are compact and thus take up less real estate on a PCB (Printed Circuit Board).

    Cell rotation and frequency compensation in diode designs

    公开(公告)号:US12040550B2

    公开(公告)日:2024-07-16

    申请号:US17713042

    申请日:2022-04-04

    IPC分类号: H01Q21/20 H01Q13/10

    CPC分类号: H01Q21/20 H01Q13/10

    摘要: Antennas having iris and/or cell rotation and/or with frequency compensation in solid state device (e.g., diode) designs and methods of using the same are described. In some embodiments, the antenna comprises: an antenna aperture having a plurality of RF radiating antenna elements that each include an iris and a solid state device coupled across the iris, wherein the plurality of antenna elements are located in rings with orientation of each of the irises of the antenna elements in at least a portion of each ring rotated with respect to adjacent irises in the portion of each ring while orientation of corresponding solid state devices is uniform; and a controller coupled to control the array of RF radiating antenna elements to tune RF radiating antenna elements to generate one or more beams using the plurality of RF radiating antenna elements.

    Wireless data terminal and wireless data terminal control system

    公开(公告)号:US12027755B2

    公开(公告)日:2024-07-02

    申请号:US17793315

    申请日:2021-01-06

    摘要: This application provides a wireless data terminal and a wireless data terminal control system. The wireless data terminal includes a housing, a drive assembly, a first antenna assembly, and a second antenna assembly. The drive assembly can drive the first antenna assembly and the second antenna assembly to extend or retract to move in different directions between a first location and a second location. When the wireless data terminal does not need to be used or high isolation between antennas is not required, the drive assembly may drive the antenna assembly to retract to the first location, so that a volume occupied by the wireless data terminal can be reduced while an antenna isolation requirement is met. When high isolation between the antennas is required, the drive assembly may drive the antenna assembly to extend to the second location, so that isolation between the antennas is increased.

    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.