Antenna with reconfigurable beam direction and antenna array with reconfigurable beam scanning range

    公开(公告)号:US10998624B2

    公开(公告)日:2021-05-04

    申请号:US16210638

    申请日:2018-12-05

    Inventor: Kefeng Zhang

    Abstract: The antenna includes a main body, a first elastic film, a first medium, a curvature adjustment unit and at least one antenna unit. The first elastic film is adhered to the main body, and the first elastic film and the main body are encircled to form a first volume variable cavity. The first medium is filled in the first volume variable cavity, the first elastic film is elastically deformable according to a volume or pressure change of the first medium; the curvature adjustment unit is configured to adjust a curvature of the first elastic film through the volume or pressure change of the first medium; and the at least one antenna unit is adhered to an outer surface of the first elastic film and configured to receive or send a wireless signal. The beam direction of the antenna may be very flexibly changed in a large range.

    Deployable reflectarray antenna structure

    公开(公告)号:US10826157B2

    公开(公告)日:2020-11-03

    申请号:US16356484

    申请日:2019-03-18

    Abstract: The invention is directed to deployable reflectarray antenna structure. In one embodiment, the deployable reflectarray antenna structure includes a pair of flexible electrical elements, a feed antenna, and a deployment mechanism that employs a plurality of tapes to respectively transition the pair of flexible electrical elements from an undeployed state in which the elements are folded towards a deployed state in which the deployment mechanism and electrical elements cooperate to form a reflectarray and a subreflector of a reflectarray antenna structure. Further, the deployment mechanism also operates to position the reflectarray and subreflector relative to one another and to the feed antenna so as to realize a reflectarray antenna structure.

    Deployable reflectarray antenna structure

    公开(公告)号:US10763569B2

    公开(公告)日:2020-09-01

    申请号:US16356527

    申请日:2019-03-18

    Abstract: The invention is directed to deployable reflectarray antenna structure. In one embodiment, the deployable reflectarray antenna structure includes a pair of flexible electrical elements, a feed antenna, and a deployment mechanism that employs a plurality of tapes to respectively transition the pair of flexible electrical elements from an undeployed state in which the elements are folded towards a deployed state in which the deployment mechanism and electrical elements cooperate to form a reflectarray and a subreflector of a reflectarray antenna structure. Further, the deployment mechanism also operates to position the reflectarray and subreflector relative to one another and to the feed antenna so as to realize a reflectarray antenna structure.

    MULTIBEAM ANTENNA WITH ADJUSTABLE POINTING
    5.
    发明申请

    公开(公告)号:US20200212534A1

    公开(公告)日:2020-07-02

    申请号:US16727625

    申请日:2019-12-26

    Applicant: Thales

    Abstract: This invention concerns a multibeam antenna with adjustable pointing, comprising a single reflection arrangement and a plurality of radiating sources arranged opposite the reflection arrangement and suited to emit and/or receive radiofrequency (RF) signals, the reflection arrangement defining a centre, a focal plane, and a focal point located on the focal plane.The antenna is characterised in that at least one of the radiating sources (‘mobile source’) is movable substantially independently of the or each other radiating source on a scanning surface to adjust the pointing of the antenna, wherein the scanning surface coincides with the focal plane or is tangential to it at the focal point.

    In-service reconfigurable antenna reflector
    6.
    发明授权
    In-service reconfigurable antenna reflector 有权
    在役可重构天线反射器

    公开(公告)号:US09368876B2

    公开(公告)日:2016-06-14

    申请号:US13857925

    申请日:2013-04-05

    CPC classification number: H01Q15/147 H01Q1/288 H01Q15/161 H01Q15/168

    Abstract: The present invention relates to an in-service reconfigurable antenna reflector comprising a rigid support and a membrane, deformable and having radio-electric reflectivity properties. According to the invention, the reflector comprises a plurality of coupling means connecting the rigid support and the membrane, comprising a first link of finger ball joint type connected to the rigid support, and a second link of finger ball joint type connected to the membrane. Each coupling means furthermore comprises a linear actuator, comprising a rotary motor and a screw-nut assembly, connected to the two links of finger ball joint type, and able to generate, in an operational configuration, a translational motion allowing the deformation of the membrane.

    Abstract translation: 本发明涉及一种在役可重新配置的天线反射器,包括刚性支架和可变形并具有无线电反射特性的膜。 根据本发明,反射器包括连接刚性支撑件和膜的多个联接装置,包括连接到刚性支撑件的手指球形接头型式的第一连杆和连接到膜的手指球形接头型的第二连杆。 每个连接装置还包括线性致动器,其包括连接到手指球接头类型的两个连杆的旋转马达和螺母 - 螺母组件,并且能够以可操作的形式产生允许膜变形的平移运动 。

    Controllable directional antenna apparatus and method
    8.
    发明授权
    Controllable directional antenna apparatus and method 有权
    可控定向天线装置及方法

    公开(公告)号:US09246235B2

    公开(公告)日:2016-01-26

    申请号:US13661373

    申请日:2012-10-26

    Abstract: Controllable directional antenna apparatus and method preferably includes structure and/or steps whereby a Yagi antenna array has a first driven element, a first reflector, and plurality of first directors disposed on a common substrate. The first reflector is bent such that (i) an unbent length thereof is longer than a length of the first driven element, but (ii) a bent length thereof is shorter than the length of the first driven element. A second driven element is also disposed on the common substrate but is angled with respect to the first driven element. A second reflector and a plurality of second directors are also disposed on the common substrate. The second reflector is bent like the first reflector, to reduce the footprint of the array on the substrate. Preferably, the Yagi antenna elements are printed on a printed circuit board.

    Abstract translation: 可控定向天线装置和方法优选地包括其中八木天线阵列具有第一被驱动元件,第一反射器和设置在公共基板上的多个第一导向器的结构和/或步骤。 第一反射器被弯曲,使得(i)其未弯曲的长度比第一从动元件的长度长,但(ii)其弯曲长度短于第一从动元件的长度。 第二从动元件也设置在公共基板上,但相对于第一从动元件成角度。 第二反射器和多个第二导向器也布置在公共基板上。 第二反射器像第一反射器一样被弯曲,以减少阵列在衬底上的占地面积。 优选地,八木天线元件印刷在印刷电路板上。

    Floating radar decoy with radar “image” that matches the image of the protected ship
    9.
    发明授权
    Floating radar decoy with radar “image” that matches the image of the protected ship 有权
    带有雷达“图像”的浮动雷达诱饵与受保护船舶的图像相匹配

    公开(公告)号:US08816894B1

    公开(公告)日:2014-08-26

    申请号:US12715955

    申请日:2010-03-02

    CPC classification number: H01Q15/20 F41J2/00 H01Q1/30 H01Q15/18

    Abstract: A ship having identifiable radar hot spots along its length is protected against radar homing missile attack by a floating decoy, which may be towed. The decoy has a plurality of radar return signal generators spaced along its length, with the amplitudes and spacing of the generators emulating the amplitudes and spacing of the hot spots. The homing missile is seduced away from the ship and toward the decoy.

    Abstract translation: 一艘沿着其长度具有可识别的雷达热点的船舶可以被可以拖曳的浮动诱饵进行雷达导弹攻击。 诱饵具有沿其长度间隔开的多个雷达返回信号发生器,发生器的振幅和间距模拟了热点的振幅和间距。 引导导弹被引诱远离船只并朝向诱饵。

    Reflector latching mechanism for segmented reflectors used in satellite communication systems
    10.
    发明授权
    Reflector latching mechanism for segmented reflectors used in satellite communication systems 有权
    用于卫星通信系统的分段反射器的反射器闭锁机构

    公开(公告)号:US08654035B2

    公开(公告)日:2014-02-18

    申请号:US12821244

    申请日:2010-06-23

    CPC classification number: H01Q15/162

    Abstract: There is provided an antenna reflector including at least first and second reflector segments, each having first and second sides. The first and second reflector segments being configured to be connected together wherein the first sides of the first and second reflector segments define a substantially continuous surface of an antenna reflector. A first latch member is attached to the second side of the first reflector segment and a second latch member is attached to the second side of the second reflector segment. Each latch member includes an abutting surface which contacts one another when the first and second reflector segments are connected together. At least one protrusion extends from the abutting surface of the first latch member. There is at least one recess in the abutting surface of the second latch member. The protrusion is received in the recess when the respective abutting surfaces contact one another.

    Abstract translation: 提供了一种天线反射器,其包括至少第一和第二反射器段,每个具有第一和第二侧。 第一和第二反射器段被配置为连接在一起,其中第一和第二反射器段的第一侧限定天线反射器的基本上连续的表面。 第一闩锁构件附接到第一反射器段的第二侧,并且第二闩锁构件附接到第二反射器段的第二侧。 每个闩锁构件包括当第一和第二反射器段连接在一起时彼此接触的邻接表面。 至少一个突起从第一闩锁构件的邻接表面延伸。 在第二闩锁构件的邻接表面中存在至少一个凹部。 当相应的邻接表面彼此接触时,突起被容纳在凹部中。

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