RECONFIGURABLE MULTI-BAND BASE STATION ANTENNAS HAVING SELF-CONTAINED SUB-MODULES

    公开(公告)号:US20210384616A1

    公开(公告)日:2021-12-09

    申请号:US17280960

    申请日:2019-10-04

    Abstract: Base station antennas include a main module that has a first backplane that includes a first reflector. A vertically-extending array of first radiating elements is mounted to extend forwardly from the first reflector, and at least one first RF port is coupled to the vertically-extending array of first radiating elements. These antennas further include a sub-module that is attached to the first backplane. The sub-module includes a second backplane that has a second reflector that is separate from the first reflector. A vertically-extending array of second radiating elements is mounted to extend forwardly from the second reflector and is transversely spaced-apart from the vertically-extending array of first radiating elements. A plurality of second RF ports are coupled to the vertically-extending array of second radiating elements. The vertically-extending array of first radiating elements and the vertically-extending array of second radiating elements are configured to serve a common sector of a base station.

    Reconfigurable multi-band base station antennas having self-contained sub-modules

    公开(公告)号:US11575217B2

    公开(公告)日:2023-02-07

    申请号:US17218601

    申请日:2021-03-31

    Abstract: Base station antennas include a main module that has a first backplane that includes a first reflector. A vertically-extending array of first radiating elements is mounted to extend forwardly from the first reflector, and at least one first RF port is coupled to the vertically-extending array of first radiating elements. These antennas further include a sub-module that is attached to the first backplane. The sub-module includes a second backplane that has a second reflector that is separate from the first reflector. A vertically-extending array of second radiating elements is mounted to extend forwardly from the second reflector and is transversely spaced-apart from the vertically-extending array of first radiating elements. A plurality of second RF ports are coupled to the vertically-extending array of second radiating elements. The vertically-extending array of first radiating elements and the vertically-extending array of second radiating elements are configured to serve a common sector of a base station.

    SIDELOBE SUPPRESSION IN MULTI-BEAM BASE STATION ANTENNAS

    公开(公告)号:US20210242599A1

    公开(公告)日:2021-08-05

    申请号:US17268498

    申请日:2019-08-07

    Abstract: A lensed multi-beam base station antenna may include a plurality of linear arrays of radiating elements, a plurality of reflectors, a sidelobe suppressor, and a lens. Each array may include a plurality of radiating elements (e.g., two or more radiating elements) that extends forwardly from a planar section of a respective reflector. The sidelobe suppressor may comprise radiofrequency (RF) absorber material that absorbs energy that is emitted by a first of the arrays and that is directed toward a reflector underneath a second of the arrays. The sidelobe suppressor may comprise a RF choke that reduces the RF energy emitted by a first of the arrays that is directed toward a reflector underneath a second of the arrays.

    Antenna having dielectric sheet loading to control beam width

    公开(公告)号:US10461414B2

    公开(公告)日:2019-10-29

    申请号:US15516626

    申请日:2015-11-17

    Inventor: Gangyi Deng

    Abstract: A cellular antenna having an array of radiating elements and a flat sheet of dielectric material in front of the antenna radiating elements and spaced about a half wavelength from the antenna phase center to provide an azimuth beam width that is narrower than without the dielectric sheet. The sheet of dielectric material may be continuous or segmented and a single layer or multi-layer. The amount of narrowing may be controlled by changing the thickness and dielectric constant of the dielectric sheet.

    Wideband twin beam antenna array
    20.
    发明授权

    公开(公告)号:US10033111B2

    公开(公告)日:2018-07-24

    申请号:US14329503

    申请日:2014-07-11

    Abstract: A wideband antenna includes a plurality of radiating elements arranged in an array and a feed network. The feed network includes at least one frequency dependent power divider for varying the amplitude of a signal provided to at least two of the plurality of radiating elements as a function of a frequency of a signal. The feed network may further comprise a plurality of inputs and the antenna may produce a plurality of beams. The frequency dependent divider may comprise a power divider having a first output and a second output, a 90° hybrid, having a first input coupled to the first output of the power divider, and a second input, and a delay line, coupled between the second output of the power divider and the second input of the 90° hybrid.

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