Automatic beam steering system for a reflector antenna

    公开(公告)号:US12113282B2

    公开(公告)日:2024-10-08

    申请号:US17846659

    申请日:2022-06-22

    Inventor: Israel Saraf

    CPC classification number: H01Q19/193 H01Q3/18 H01Q13/10

    Abstract: An antenna comprises a main reflector, a waveguide, wherein at least part of the waveguide protrudes towards a region external to the antenna, wherein the antenna is operative to transmit electromagnetic radiations between the waveguide and the main reflector, a mechanism which enables displacement of at least part of the waveguide with respect to the main reflector, and an actuator operative to displace the at least part of the waveguide.

    ANTENNA FEED HORN WITH NEAR-CONSTANT PHASE CENTER WITH SUBREFLECTOR TRACKING IN THE Z-AXIS

    公开(公告)号:US20240047869A1

    公开(公告)日:2024-02-08

    申请号:US18272544

    申请日:2023-03-23

    Inventor: David WEBB

    CPC classification number: H01Q3/16 H01Q13/0208 H01Q19/132 H01Q19/19

    Abstract: A dual reflector earth station antenna (ESA) system for transmitting uplink in a first frequency band and receiving downlink in a second frequency band, the ESA system comprises a reflector; a reflector tracking assembly coupled to the reflector and configured to control the direction of the reflector; a feed horn coupled to the reflector and optimized for a near-constant phase center for both the first frequency band and the second frequency band; a subreflector tracking assembly including a subreflector, configured for tracking in the X, Y and Z-axes and supported proximate a focal point of the reflector; and a control system in communication with the subreflector tracking assembly and comprising at least one processor. The processor is configured to adjust the subreflector of the subreflector tracking assembly along X, Y and Z axes of the reflector until a signal gain of the reflector antenna is maximized for the second frequency band; and wherein a signal gain of the reflector antenna is also simultaneously maximized for the first frequency band due to the optimization of the feed horn for a near-constant phase center for both the first frequency band and the second frequency band.

    REFLECTOR ANTENNA ASSEMBLY
    7.
    发明公开

    公开(公告)号:US20230369776A1

    公开(公告)日:2023-11-16

    申请号:US18028162

    申请日:2021-03-31

    CPC classification number: H01Q19/193 H01Q3/20

    Abstract: The present invention relates to a reflector antenna assembly, and a method of operating an antenna assembly wherein the reflector antenna assembly comprises a reflector having a focal region, wherein an aperture is present in a portion of the reflector; and a waveguide passing through the aperture, wherein the reflector antenna assembly is configured such that the reflector is operable to move relative to the waveguide.

    Dual-band polariser
    8.
    发明授权

    公开(公告)号:US11695191B2

    公开(公告)日:2023-07-04

    申请号:US17050951

    申请日:2019-04-26

    Abstract: Apparatus for dual-band antenna and communications tower comprising such apparatus are provided. The apparatus comprises a first part (202) comprising first and second propagation paths configured to selectively propagate signals of a first frequency with either a first polarization state or a second polarization state, a transition part (204) rotatable between first and second transition positions to selectively propagate signals of a second frequency along the second signal path with the first polarisation state when in the first transition position and with the second polarisation state when in the second transition position and a rotator part rotatable between first and second rotator positions. Wherein, the rotator part is configured to orientate the polarisation of signals in the second signal path in order to couple the second signal path to an interface, and allow propagation of signals in the first signal path in either the first or second rotator positions.

    Dual-band antenna
    9.
    发明授权

    公开(公告)号:US11652294B2

    公开(公告)日:2023-05-16

    申请号:US17101826

    申请日:2020-11-23

    CPC classification number: H01Q5/55 H01Q5/47 H01Q13/06 H01Q19/10 H01Q19/19

    Abstract: The present disclosure relates to coaxial dual-band antennas. One example antenna includes a waveguide tube, a ring groove, and a high frequency feed. The waveguide tube has a tubular structure and is configured to transmit a first electromagnetic wave. The ring groove whose opening direction is the same as an output direction of the first electromagnetic wave is on a wall of the waveguide tube. A frequency of the first electromagnetic wave is lower than a frequency of an electromagnetic wave transmitted by the high frequency feed. The high frequency feed is located in the waveguide tube and has a same axis with the waveguide tube.

    Feed for an antenna system comprising a sub-reflector and a main reflector

    公开(公告)号:US11621494B2

    公开(公告)日:2023-04-04

    申请号:US17479241

    申请日:2021-09-20

    Inventor: Armel Lebayon

    Abstract: A horn feed including: a central conduit extending axially in a first direction from a first portion that is configured to be relatively distal from a sub-reflector and including a first aperture and a second portion that is configured to be relatively proximal to the sub-reflector and including a second aperture; and an interface configured to connect to a dielectric support including an outer cylindrical dielectric wall of a substantially cylindrical shape and an inner cylindrical dielectric wall of a substantially cylindrical shape, wherein the central conduit, the outer cylindrical dielectric wall and the inner cylindrical dielectric wall are co-axial.

Patent Agency Ranking