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    RADAR SYSTEM
    4.
    发明公开
    RADAR SYSTEM 审中-公开

    公开(公告)号：EP4130793A1

    公开(公告)日：2023-02-08

    申请号：EP21190108.7

    申请日：2021-08-06

    申请人： Aptiv Technologies Limited

    发明人： Vollbracht, Dennis ,  Busch, Mathias

    IPC分类号： G01S13/931 ,  G01S13/00 ,  G01S13/42 ,  H01Q1/32 ,  H01Q19/17 ,  H01Q13/06 ,  H01Q21/28 ,  H01Q25/00 ,  B60R19/48

    摘要： A radar system (13) for a vehicle comprises a first radar antenna assembly (25) connected to at least one radar transmitter for transmitting radar signals into a traffic space and a second radar antenna assembly (26) connected to at least one radar receiver for receiving radar signals reflected by objects present in the traffic space, wherein the first radar antenna assembly is spaced apart from the second radar antenna assembly, wherein the at least one radar transmitter is coupled to the at least one radar receiver by a synchronization line (28) for a bistatic radar operation of the radar system, and wherein at least one of the first radar antenna assembly and the second radar antenna assembly comprises a feed horn (33) and a reflector (35) for the feed horn.

    OVER-THE-AIR MEASUREMENT SYSTEM AND METHOD OF TESTING A DEVICE UNDER TEST OVER-THE-AIR
    8.
    发明公开
    OVER-THE-AIR MEASUREMENT SYSTEM AND METHOD OF TESTING A DEVICE UNDER TEST OVER-THE-AIR 审中-公开

    公开(公告)号：EP4033260A1

    公开(公告)日：2022-07-27

    申请号：EP21205302.9

    申请日：2021-10-28

    申请人： Rohde & Schwarz GmbH & Co. KG

    发明人： Rowell, Corbett

    IPC分类号： G01R29/08 ,  H04B17/00 ,  H04B7/02 ,  H01Q19/17 ,  G01R29/10

    摘要： An over-the-air (OTA) measurement system for testing a device under test (12), with a plurality of feed antennas (24, 26), a test location (16) for the device under test (12), and a reflector array (28) with a main reflector (30) and a sub-reflector (32). The plurality of feed antennas (24 ,26) face the sub-reflector (32). The reflector array (28) is located such that a signal path (24) is established between the plurality of feed antennas (24, 26) and the test location (16) via the sub-reflector (32) and the main reflector (30). The sub-reflector (32) has at least one focal point (36). The plurality of feed antennas (24, 26) comprise a first feed antenna (24) and at least one second feed antenna (26). The first feed antenna (24) is associated with the focal point (36) of the sub-reflector (32). The at least one second feed antenna (26) is located offset from the focal point (36) of the sub-reflector (32). Further, a method of testing a device under test (12) over-the-air is described.

    COVERAGE AREA ADJUSTMENT TO ADAPT SATELLITE COMMUNICATIONS
    9.
    发明公开
    COVERAGE AREA ADJUSTMENT TO ADAPT SATELLITE COMMUNICATIONS 审中-公开

    公开(公告)号：EP3955384A3

    公开(公告)日：2022-05-18

    申请号：EP21199254.0

    申请日：2017-04-10

    申请人： ViaSat Inc.

    发明人： MENDELSOHN, Aaron ,  RUNYON, Donald

    IPC分类号： H01Q1/28 ,  H01Q3/02 ,  H01Q3/18 ,  H01Q3/20 ,  H01Q25/00 ,  H01Q19/17

    摘要： The described features generally relate to adjusting a native antenna pattern of a satellite to adapt communications via the satellite. For example, a communications satellite may include an antenna having a feed array assembly, a reflector, and a linear actuator coupled between the feed array assembly and the reflector. The feed array assembly may have a plurality of feeds for communicating signals associated with a communications service, and the reflector may be configured to reflect the signals transmitted between the feed array assembly and one or more target devices. The linear actuator may have an adjustable length, or otherwise provide an adjustable position between the feed array assembly and the reflector. By adjusting the position of the feed array assembly relative to the reflector, the communications satellite may provide a communications service according to a plurality of native antenna patterns.