公开(公告)号：US5734349A

公开(公告)日：1998-03-31

申请号：US587486

申请日：1996-01-17

申请人： Regis Lenormand ,  Bernard Coulomb ,  Jean-Philippe Marre ,  Michel Tatard ,  Christian Rigal ,  Charles Villemur

发明人： Regis Lenormand ,  Bernard Coulomb ,  Jean-Philippe Marre ,  Michel Tatard ,  Christian Rigal ,  Charles Villemur

IPC分类号： H01Q25/00 ,  H01Q3/22

CPC分类号： H01Q25/007

摘要： The invention provides a multibeam antenna comprising: an array 11 of N.sub.e elementary sources 31; energy-focusing optical means comprising a reflector 10 or a lens; the array being situated in the focal zone of said focusing means: and a feed and control circuit cooperating with the N.sub.e primary sources 31 to produce N.sub.b beams each generated from a subgroup of the primary sources, some of which are shared between overlapping beams; the feed and control circuit comprising phase shifter means and attenuator means, said means being organized in N.sub.e feed channels for said N.sub.e primary sources, each feed channel including specific means for acting on the phase and the amplitude of an excitation signal in each feed channel; wherein each required beam is generated by the multibeam antenna solely by acting on the phase and the amplitude of the excitation delivered to each elementary source forming a portion of said beam; and wherein the number of sources N.sub.i contributing to a beam i, 1.ltoreq.i.ltoreq.N.sub.b, varies and is determined as a function of the characteristics desired for said beam i. The antenna is applicable to satellite telecommunications, in particular for on-board antennas of high capacity.

摘要翻译： 本发明提供一种多波束天线，包括：Ne基本源31的阵列11; 能量聚焦光学装置包括反射器10或透镜; 所述阵列位于所述聚焦装置的焦点区域中;以及馈送和控制电路，与所述Ne初级源31配合，以产生每个从所述主要源的子组生成的Nb波束，其中一些在重叠波束之间共享; 所述馈送和控制电路包括移相器装置和衰减器装置，所述装置被组织在所述Ne初级源的Ne馈送通道中，每个馈送通道包括用于作用在每个馈送通道中的激励信号的相位和幅度的特定装置; 其中每个所需光束仅由多波束天线通过作用于形成所述光束的一部分的传递到每个基本光源的激光的相位和振幅而产生; 并且其中对光束i贡献的源Ni的数量变化，并且被确定为所述光束i所需的特性的函数。 该天线适用于卫星电信，特别适用于高容量的车载天线。

公开(公告)号：US5859610A

公开(公告)日：1999-01-12

申请号：US948485

申请日：1997-10-10

申请人： Regis Lenormand ,  Henri Favaro ,  Thierry Quignon ,  Christian Rigal ,  Charles Villemur

发明人： Regis Lenormand ,  Henri Favaro ,  Thierry Quignon ,  Christian Rigal ,  Charles Villemur

IPC分类号： G01S3/30 ,  G01S3/74 ,  H04B7/185

CPC分类号： G01S3/74 ,  G01S3/30

摘要： A method and a system for locating ground equipment transmitting signals to a geostationary satellite, the method and the system being based on identifying the arrival directions of such signals within the coverage zone of the satellite. In the method, the arrival directions of the signals are identified by using a beam-forming active-module array antenna system on board the satellite, the system being controlled to define simultaneous beams in the radiation pattern of the antenna, the beams being superposed on one another with small offsets, the superposed beams corresponding to a limited analysis zone being illuminated within the coverage zone of the satellite, the system further being associated with a digital processing program which identifies the arrival directions of the signals which are received in the analysis zone.

摘要翻译： 一种用于定位将地面设备传输到对地静止卫星的方法和系统，所述方法和系统基于识别卫星覆盖区域内的这些信号的到达方向。 在该方法中，通过使用卫星上的波束形成有源模块阵列天线系统来识别信号的到达方向，该系统被控制以在天线的辐射图中定义同时的波束，波束叠加在 彼此具有小的偏移，对应于在卫星的覆盖区域内的有限分析区域的叠加的波束，系统还与识别在分析区域中接收的信号的到达方向的数字处理程序相关联 。