MULTI-BAND FAST ROLL OFF ANTENNA HAVING MULTI-LAYER PCB-FORMED CLOAKED DIPOLES

    公开(公告)号:US20200169002A1

    公开(公告)日:2020-05-28

    申请号:US16613852

    申请日:2018-05-17

    IPC分类号: H01Q21/06 H01Q21/26 H01Q5/307

    摘要: Disclosed is a telecommunications antenna having a plurality of cloaked low band (LB) and high band (HB) dipoles. The LB and HB dipoles provide cloaking by breaking the dipoles into dipole segments, and providing conductive cloaking elements over the gaps between dipole segments to form a plurality of capacitors along the dipole. The capacitors along the LB dipoles provide a low impedance to LB RF signals and a high impedance to HB signals. The capacitors formed on the HB dipoles provide a low impedance to RF signals and high impedance to harmonics of the LB RF signals. This cross-cloaking of dipoles enables more dense arrangements of LB and HB dipoles on an antenna array face, providing opportunities to arrange, for example, the LB dipoles with an array factor that results in an advantageous fast roll off gain pattern.

    LOWBAND DIPOLE WITH IMPROVED GAIN AND ISOLATION

    公开(公告)号:US20230299485A1

    公开(公告)日:2023-09-21

    申请号:US18101332

    申请日:2023-01-25

    IPC分类号: H01Q5/48 H01Q21/06

    CPC分类号: H01Q5/48 H01Q21/062

    摘要: A lowband radiator has four dipole arms and a central region that is centered at the intersection of the dipole arms. Each of the dipole arms has a sequence of capacitive and inductive structures and a pair of high gain wings that are disposed in the dipole central region. In one embodiment of the lowband radiator, each dipole arm has a gap within the central region that is colinear with the dipole arm. The dipoles provide for improved isolation from nearby midband radiators while providing high gain.

    Fast rolloff antenna array face with heterogeneous antenna arrangement

    公开(公告)号:US11283195B2

    公开(公告)日:2022-03-22

    申请号:US16962892

    申请日:2019-01-24

    IPC分类号: H01Q21/26 H01Q5/42 H01Q1/24

    摘要: A multiband antenna has a plurality of first, unit cells and second unit cells. Each first unit cell has two high band radiator clusters and two low band radiators disposed approximately in the center of each of the high band radiator clusters. Each second unit cell has two high band radiator clusters and one low band radiator that is disposed between the two high band radiator clusters. The first unit cell is designed for a superior low band gain pattern, and the second unit cell is designed for a superior high band gain pattern. By selectively arranging the first and second unit cells in a specific heterogeneous pattern, the characteristics of the two unit cells may advantageously and constructively combine to form a high performance antenna gain pattern that is consistent across the low band and high band.

    Low-profile vertically-polarized omni antenna

    公开(公告)号:US11276943B2

    公开(公告)日:2022-03-15

    申请号:US16604800

    申请日:2018-04-17

    IPC分类号: H01Q21/20 H01Q1/48

    摘要: An omni-directional antenna including a plurality of stacked omni-directional antenna core assemblies. Each antenna core assembly comprises a conductive ground plane defining an axis normal to the ground plane and a plurality of conductive plates projecting orthogonally from the conductive ground plane and angularly spaced about the axis. Each of the plates defines an edge extending radially outboard from the central axis and diverging away from the conductive ground plane as the radial distance increases from the central axis. The edge defines a first region defining an acute angle relative to the conductive ground plane and a second region, radially outboard of the first region defining an arcuate shape.