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：US5963845A

公开(公告)日：1999-10-05

申请号：US561247

申请日：1995-11-21

申请人： Gerard Floury ,  Jean-Philippe Gazda ,  Bernard Rivierre ,  Michel Tatard

发明人： Gerard Floury ,  Jean-Philippe Gazda ,  Bernard Rivierre ,  Michel Tatard

IPC分类号： H04B1/10 ,  H04B1/59 ,  H04B7/185

CPC分类号： H04B7/18515

摘要： A satellite payload having d transparent channels, a first plurality d of band-pass channel filters IMUX of bandwidth .delta. that filter received signals, frequency converters, a plurality k of channel amplifiers (k.gtoreq.d), power amplifiers and a second plurality p of channel filters OMUX that filter the signals amplified by the channel amplifiers and the power amplifiers, d amplifiers assigned to said d channels, the frequency converters including at least one mixer and at least one source of a conversion frequency signal, wherein the g band-pass channel filters IMUX filter the received signals before frequency conversion by the converters.

摘要翻译： 具有d个透明信道的卫星有效载荷，对接收信号进行滤波的带通信道滤波器IMUX的第一多个d，频率转换器，多个k个信道放大器（k> = d），功率放大器和第二个 p通道滤波器OMUX，滤波由信道放大器和功率放大器放大的信号，分配给所述d个通道的d个放大器，变频器包括至少一个混频器和至少一个转换频率信号源，其中g频带 通道滤波器IMUX对转换器进行变频前的接收信号进行滤波。