Reconfigurable transmission antenna
    3.
    发明授权
    Reconfigurable transmission antenna 失效
    可重配置的发射天线

    公开(公告)号:US5289193A

    公开(公告)日:1994-02-22

    申请号:US61425

    申请日:1993-02-04

    IPC分类号: H01Q25/00 H01Q3/02 H01Q3/22

    CPC分类号: H01Q25/007

    摘要: The invention relates to a reconfigurable transmission antenna comprising a reflector (10) for energy focussing, and an array (11) of source elements situated in the focal region of the reflector, so that the electromagnetic field is synthesized in said region, wherein a spot (SPi) is the result of radiation from a number of sources that is fixed and identical for all the spots; any one source participating at any one time in radiating one spot at the most, and high-level switching being used to reconfigure the spots by selecting the sources that participate in a given spot. Application to the space telecommunications field in particular.

    摘要翻译: 本发明涉及一种包括用于能量聚焦的反射器(10)和位于反射器聚焦区域中的源元件阵列(11)的可重新配置的发射天线,从而在所述区域中合成电磁场,其中点 (SPi)是来自多个源的辐射的结果,其固定并且对于所有斑点是相同的; 任何一个来源都可以在任何一个时间最多地辐射一个地点,并且通过选择参与给定地点的来源,用于重新配置点的高级别切换。 尤其适用于太空电讯领域。

    Receiving antenna for multibeam coverage
    4.
    发明申请
    Receiving antenna for multibeam coverage 有权
    接收天线多波束覆盖

    公开(公告)号:US20050088356A1

    公开(公告)日:2005-04-28

    申请号:US10503097

    申请日:2003-01-17

    申请人: Regis Lenormand

    发明人: Regis Lenormand

    摘要: The invention relates to a receiving antenna for satellite telecommunications. More specifically, the invention relates to an active antenna comprising a network of elementary sources which is positioned at the focal point of a focusing reflector. According to the invention, said network of sources is disposed on a more or less spherical, concave surface S. The aforementioned arrangement can be used to: (i) improve the efficiency of the optics and (ii) enable the use of polarisation duplexers behind surface S in order to increase the spectral efficiency of the antenna.

    摘要翻译: 本发明涉及一种用于卫星通信的接收天线。 更具体地,本发明涉及一种有源天线,其包括位于聚焦反射器的焦点处的基本源网络。 根据本发明,所述源极网络设置在或多或少的球形凹表面S.上述布置可用于:(i)提高光学器件的效率,以及(ii)使得能够使用偏振双工器 表面S以增加天线的光谱效率。

    Antenna beam coverage reconfiguration
    5.
    发明授权
    Antenna beam coverage reconfiguration 失效
    天线波束覆盖重构

    公开(公告)号:US5355138A

    公开(公告)日:1994-10-11

    申请号:US118664

    申请日:1993-09-10

    IPC分类号: H04B7/15 H04B7/204 H04B7/185

    CPC分类号: H04B7/2041

    摘要: A earth station calling another station sends a link setting-up a request to a control station. The control station memorizes in a transformed reference system the contour of a global geographical coverage including all the earth stations together with the earth positions of the latter. Subsequent to the request, the control station simulates the optimum evolution of the radioelectric coverages of the satellite so as to include, both on emitting and receiving, the calling and called stations in respective coverages with guaranteed minimum antenna gains. The total power of the satellite and the positions of the stations are notably considered in this simulation. If the result of simulation is positive, an emission authorization is sent by the control station to the calling station, and satellite antennae are reconfigured by phase shift and power control values emitted by the control station.

    摘要翻译: 呼叫另一台站的地面站向控制站发送一个链接建立请求。 控制站在变换后的参考系统中记录包括所有地球站在内的全球地理覆盖物的轮廓以及后者的地球位置。 在请求之后,控制站模拟卫星的无线电覆盖物的最佳演进,以便包括发射和接收具有保证的最小天线增益的相应覆盖区中的呼叫和被叫站。 在该模拟中,特别考虑卫星的总功率和站的位置。 如果模拟结果为正,则由控制站向呼叫站发送发射授权,并通过控制站发出的相移和功率控制值对卫星天线进行重新配置。

    Electronically scanned antenna
    6.
    发明授权
    Electronically scanned antenna 失效
    电子扫描天线

    公开(公告)号:US4965588A

    公开(公告)日:1990-10-23

    申请号:US325716

    申请日:1989-03-20

    摘要: The invention relates to an electronically scanned antenna comprising an array (11) of elementary sources, an energy-focusing reflector (10), and feed and control electronics; the array (11) is situated in the focal zone of the reflector, while the feed and control electronics includes a plurality of attenuator and phase shifter circuits (24) controlled by a control unit (27), with said circuits having their outputs connected to at least one combiner (28). The invention is particularly suitable for space telecommunications.

    摘要翻译: 本发明涉及一种电子扫描天线,其包括基本源的阵列(11),能量聚焦反射器(10)以及馈电和控制电子装置; 阵列(11)位于反射器的焦点区域中,而馈电和控制电子器件包括由控制单元(27)控制的多个衰减器和移相器电路(24),其中所述电路的输出连接到 至少一个组合器(28)。 本发明特别适用于空间通信。

    Antenna pointing device capable of scanning in two orthogonal directions
    7.
    发明授权
    Antenna pointing device capable of scanning in two orthogonal directions 失效
    能够在两个正交方向扫描的天线指向装置

    公开(公告)号:US4821045A

    公开(公告)日:1989-04-11

    申请号:US204949

    申请日:1988-06-07

    IPC分类号: H01Q3/08 H01Q3/12 H01Q19/18

    CPC分类号: H01Q3/12

    摘要: An antenna pointing device capable of scanning in two orthogonal directions comprises a fixed source (20) emitting a radio beam (21) and associated with a main offset reflector (10) and a secondary offset reflector (11), together with a set of at least three mirrors (14, 15, and 17) including a first mirror (14) aligned with the secondary reflector (11), and in which the second and third mirrors (15 and 17) are fixed to respective rotary drive mechanisms (16 and 18) for rotating them about two axes (.DELTA., .DELTA.') extending in orthogonal directions. The main and the secondary reflectors (10, 11) and the first and the second mirrors (14, 15) are mechanically fixed to one another in order to constitute a moving assembly. The second mechanism (18) drives both the third mirror (17) and said moving assembly (10, 11, 14, and 15).

    摘要翻译: 能够在两个正交方向上扫描的天线指向装置包括发射无线电波束(21)并与主偏移反射器(10)和次偏移反射器(11)相关联的固定源(20),以及一组在 至少三个反射镜(14,15和17)包括与第二反射器(11)对准的第一反射镜(14),并且其中第二和第三反射镜(15和17)固定到相应的旋转驱动机构(16和 18),用于使它们围绕在正交方向上延伸的两个轴线(DELTA,DELTA')旋转。 为了构成移动组件,主反射器(10,11)和第一和第二反射镜(14,15)彼此机械固定。 第二机构(18)驱动第三反射镜(17)和所述移动组件(10,11,14和15)。

    Rotary microwave joint device
    8.
    发明授权
    Rotary microwave joint device 失效
    旋转微波接头装置

    公开(公告)号:US4757281A

    公开(公告)日:1988-07-12

    申请号:US41253

    申请日:1987-04-22

    IPC分类号: H01P1/06 H01P5/22

    CPC分类号: H01P1/067

    摘要: The invention relates to a rotary microwave joint device comprising a main circular waveguide constituted by two portions (10, 11) situated as extensions to each other and rotatable relative to one another about their axis of symmetry, each of said two portions (10, 11) being provided with at least one access which is orthogonal thereto, and mechanical means enabling a circularly polarized wave to be obtained in the main waveguide. The invention is applicable to space telecommunications.

    摘要翻译: 本发明涉及一种旋转微波接头装置,其包括主圆形波导,该主圆形波导由两部分(10,11)构成,所述两个部分(10,11)位于彼此之间并相对于彼此的对称轴线彼此相对旋转,所述两个部分(10,11) )具有与其正交的至少一个通路,以及能够在主波导中获得圆偏振波的机械装置。 本发明适用于空间通信。

    Method of allocating a communication channel in a satellite network
    9.
    发明授权
    Method of allocating a communication channel in a satellite network 失效
    在卫星网络中分配通信信道的方法

    公开(公告)号:US5519404A

    公开(公告)日:1996-05-21

    申请号:US348178

    申请日:1994-11-28

    IPC分类号: H04B7/204 H04B7/185

    CPC分类号: H04B7/18539

    摘要: The invention concerns a method of allocating a respective free radio beam channel to calling and called stations of a satellite telecommunication network. If there is no free channel on a beam forming the coverage including one given station, the method of the invention looks for free channels in each beam adjacent said beam, and allocates one of the adjacent beam free channels to the given station as soon as in an optimal subset of beams comprising all beams using the same channel as the free channel each level of isolation equal to the ratio of an antenna gain of a main lobe of a respective one of the beams of the optimal subset to the sum of the maximal antenna gains of secondary lobes of the other beams is greater than a given threshold.

    摘要翻译: 本发明涉及一种将相应的自由无线电波信道分配给卫星电信网络的呼叫和被叫站的方法。 如果在形成包括一个给定站的覆盖的波束上没有自由信道,则本发明的方法在与所述波束相邻的每个波束中寻找空闲信道,并且一旦将其中一个相邻波束自由信道分配给给定站, 使用与自由信道相同的信道的所有波束的最佳子集,每个等级的隔离度等于最佳子集的相应一个波束的主波束的天线增益与最大天线之和的比率 其他波束的次级波瓣的增益大于给定阈值。

    Offset active antenna having two reflectors
    10.
    发明授权
    Offset active antenna having two reflectors 失效
    具有两个反射器的偏置有源天线

    公开(公告)号:US5321413A

    公开(公告)日:1994-06-14

    申请号:US996156

    申请日:1992-12-23

    申请人: Regis Lenormand

    发明人: Regis Lenormand

    IPC分类号: H01Q19/10 H01Q19/19 H01Q19/06

    CPC分类号: H01Q19/192 H01Q19/104

    摘要: An offset type active antenna having two reflectors in a periscopic configuration. A radio lens is provided at the focii of the two reflectors. It comprises a collector and a primary array that is considerably larger in size than the collector. The "small" sources of the collector are in a geographically identical one-to-one correspondence with the "big" sources of the primary array, and they are respectively connected together via devices for providing fine phase adjustment.

    摘要翻译: 偏移型有源天线,其具有透视配置中的两个反射器。 在两个反射器的焦点处提供无线电透镜。 它包括一个收集器和一个主要的阵列,其尺寸比收集器大得多。 收集器的“小”源与主阵列的“大”源处于地理上相同的一对一对应关系,并且它们分别通过用于提供精细相位调整的装置连接在一起。