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    COAXIAL RF DUAL-POLARIZED WAVEGUIDE FILTER AND METHOD
    156.
    发明公开
    COAXIAL RF DUAL-POLARIZED WAVEGUIDE FILTER AND METHOD 审中-公开

    公开(公告)号：US20240145894A1

    公开(公告)日：2024-05-02

    申请号：US18408541

    申请日：2024-01-09

    申请人： Ubiquiti Inc.

    发明人： John R. SANFORD

    IPC分类号： H01P1/208 ,  H01P3/127 ,  H01P7/06 ,  H01Q1/42 ,  H01Q15/16 ,  H01Q19/13

    CPC分类号： H01P1/208 ,  H01P3/127 ,  H01P7/06 ,  H01Q1/42 ,  H01Q15/16 ,  H01Q19/134 ,  H01Q3/26

    摘要： A device for transmission of wireless signals that switches between duplexing schemes may include radio circuitry configured to utilize a plurality of duplexing schemes to transmit a radio-frequency signal in a frequency channel from a transmitting reflector and to receive a radio-frequency signal from a receiving reflector, wherein the radio circuitry comprises a transmitter and a receiver, further wherein the transmitter is coupled to the transmitting reflector and the receiver is coupled to the receiving reflector and a detector coupled to either the transmitting reflector or the receiving reflector, wherein the detector is configured to monitor the same frequency channel as the radio-frequency signal transmitted by the radio circuitry to detect a reflection of the transmitted radio-frequency signal.

    ANTENNA FEED HORN WITH NEAR-CONSTANT PHASE CENTER WITH SUBREFLECTOR TRACKING IN THE Z-AXIS
    158.
    发明公开
    ANTENNA FEED HORN WITH NEAR-CONSTANT PHASE CENTER WITH SUBREFLECTOR TRACKING IN THE Z-AXIS 审中-公开

    公开(公告)号：US20240047869A1

    公开(公告)日：2024-02-08

    申请号：US18272544

    申请日：2023-03-23

    申请人： Kratos Antenna Solutions Corporation

    发明人： David WEBB

    IPC分类号： H01Q3/16 ,  H01Q13/02 ,  H01Q19/13 ,  H01Q19/19

    CPC分类号： H01Q3/16 ,  H01Q13/0208 ,  H01Q19/132 ,  H01Q19/19

    摘要： 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.

    Low Elevation Sidelobe Antenna with Fan-Shaped Beam
    160.
    发明公开
    Low Elevation Sidelobe Antenna with Fan-Shaped Beam 审中-公开

    公开(公告)号：US20230261389A1

    公开(公告)日：2023-08-17

    申请号：US18307929

    申请日：2023-04-27

    申请人： Waymo LLC

    发明人： Edwin Lim ,  Timothy Campbell ,  Matthew Markel

    IPC分类号： H01Q19/13 ,  H01Q13/02 ,  H01Q5/55 ,  H01Q1/32

    CPC分类号： H01Q19/138 ,  H01Q13/0233 ,  H01Q5/55 ,  H01Q1/3275 ,  H01Q1/3233

    摘要： Example embodiments relate to low elevation side lobe antennas with fan-shaped beams. An example radar unit may include a radiating plate having a first side and a second side with an illuminator, a waveguide horn, a waveguide opening, and a radiating sleeve extending into the first side of the radiating plate. The waveguide opening is positioned on the first end of the first side and the radiating sleeve is positioned on the second end of the first side. The radar unit also includes a metallic cover coupled to the first side of the radiating plate such that the metallic cover and the radiating plate form waveguide structures. The waveguide horn is configured to receive, from an external source, electromagnetic energy provided through the waveguide opening via a first waveguide and provide a portion of the electromagnetic energy to the illuminator via a second waveguide such that the portion of the electromagnetic energy radiates off the illuminator and through the radiating sleeve into an environment of the radar unit as one or more radar signals.