COVERAGE AREA ADJUSTMENT TO ADAPT SATELLITE COMMUNICATIONS

    公开(公告)号:EP3955384A2

    公开(公告)日:2022-02-16

    申请号:EP21199254.0

    申请日:2017-04-10

    申请人: ViaSat Inc.

    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.

    DISPOSITIF D'IMAGERIE ET PROCEDE D'IMAGERIE CORRESPONDANT
    7.
    发明公开
    DISPOSITIF D'IMAGERIE ET PROCEDE D'IMAGERIE CORRESPONDANT 审中-公开
    成像装置和相应的成像方法

    公开(公告)号:EP3278139A1

    公开(公告)日:2018-02-07

    申请号:EP16717986.0

    申请日:2016-03-25

    摘要: The present invention relates to an imaging device (1) comprising:- a first microwave frequency sensor or set of sensors (2), preferably radiometric, each microwave frequency sensor (2) being configured so as to sense electromagnetic radiations emitted or reflected by bodies or objects situated in a zone of detection of said microwave frequency sensor (2), and - a reflecting means (6) configured so as to reflect the electromagnetic radiations that may be sensed by the first microwave frequency sensor or set of microwave frequency sensors (2). In particular, the reflecting means (6) is mounted movably in the zone of detection of each microwave frequency sensor (2), so as to displace said detection zone by displacing the reflecting means (6). The invention also relates to a corresponding method of microwave frequency imaging.

    ANTENNA HAVING A BEAM INTERRUPTER FOR INCREASED THROUGHPUT
    8.
    发明公开
    ANTENNA HAVING A BEAM INTERRUPTER FOR INCREASED THROUGHPUT 审中-公开
    天线具有增强吞吐量的波束中断器

    公开(公告)号:EP3190663A1

    公开(公告)日:2017-07-12

    申请号:EP17150380.8

    申请日:2017-01-05

    摘要: A telecommunications antenna including a conductive ground plane, at least one radiator, and Electromagnetic Energy (EME) interrupter. The radiator is disposed in combination with the conductive ground plane and produces a beam pattern indicative of the performance/throughput of the radiator. The EME interrupter electrically connects to the conductive ground plane and is operative to electrically inhibit the transmission/reception of electromagnetic energy within a sector of the beam pattern. In one embodiment, the EME interrupter inhibits the transmission of energy within a sector of between about one degree (1°) to about twenty degrees (20°) (Fig. 3).

    摘要翻译: 电信天线包括一个导电接地层,至少一个辐射器和电磁能(EME)中断器。 散热器与导电接地面结合设置并产生表示散热器的性能/通过量的光束图案。 EME中断器电连接到导电接地平面并且可操作地电束抑制光束图案的扇区内的电磁能量的发送/接收。 在一个实施例中,EME中断器禁止在约1度(1°)至约20度(20°)(图3)的扇区内的能量传输。

    ANTENNA DEVICE AND ANTENNA DEVICE CONTROL METHOD
    9.
    发明公开
    ANTENNA DEVICE AND ANTENNA DEVICE CONTROL METHOD 审中-公开
    天线装置和天线装置控制方法

    公开(公告)号:EP3109937A1

    公开(公告)日:2016-12-28

    申请号:EP15748643.2

    申请日:2015-01-30

    申请人: NEC Corporation

    发明人: TANAKA, Nobuyuki

    摘要: An antenna device capable of maintaining a high antenna transmission and reception level even with a change in azimuth is provided. An antenna device (100) according to the present invention includes a primary radiation means (10) for guiding and emitting radio waves at transmission, and guiding radio waves at reception, an antenna member (20) for reflecting radio waves emitted by the primary radiation means (10) and forming a transmission beam at transmission, and reflecting received waves on the primary radiation means (10) at reception, an angle adjustment means (40) for changing a relative angle between the primary radiation means (10) and the antenna member (20), an angle calculation means (81) for calculating the relative angle to be formed between the primary radiation means (10) and the antenna member (20) for displacement of an azimuth occurring in the primary radiation means (10), and a control means (82) for controlling the angle adjustment means based on the calculated relative angle.

    摘要翻译: 提供一种即使方位角变化也能够维持高的天线发送接收电平的天线装置。 根据本发明的天线装置(100)包括用于在发射时引导和发射无线电波并在接收时引导无线电波的主辐射装置(10),用于反射由初级辐射发射的无线电波的天线构件(20) (10)并在发射时形成发射波束,并且在接收时在主辐射装置(10)上反射接收波;角度调节装置(40),用于改变主辐射装置(10)与天线之间的相对角度 (20);角度计算装置(81),用于计算初级辐射装置(10)与天线构件(20)之间形成的相对角度,用于在初级辐射装置(10)中产生的方位角的位移; 以及控制装置(82),用于根据计算出的相对角度控制角度调节装置。