会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • High capacity multibeam antenna with electronic scanning in transmission
    • 具有电子扫描传输的高容量多波束天线
    • US5734349A
    • 1998-03-31
    • US587486
    • 1996-01-17
    • Regis LenormandBernard CoulombJean-Philippe MarreMichel TatardChristian RigalCharles Villemur
    • Regis LenormandBernard CoulombJean-Philippe MarreMichel TatardChristian RigalCharles Villemur
    • H01Q25/00H01Q3/22
    • H01Q25/007
    • 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.
    • 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。