首页> 外国专利> Electro-optically controlled wideband multi-beam phased array antenna

Electro-optically controlled wideband multi-beam phased array antenna

机译:电光宽带多波束相控阵天线

摘要

An optical network (46) for providing a wideband true time delay phased antenna array with simultaneous multiple beam capability is disclosed. The network (46) is provided for connection between plural beam ports (48-52M) and plural antenna elements (20-24N) for converting a received radio frequency (RF) planar wavefront to plural in-phase signals at one and only one beam port (48-52M). The converse is true for a transmitted wave. The network (46) includes a laser (30-34N) for each antenna element (20-24N) modulated by RF energy which is separated and delayed via optical dividers (35-39N) connected to optical combiners (40-44M) by optical fibers (46) of different lengths. Substantially all signals then arrive in-phase at one particular beam port (48-52M) for a receiver (56-60M) receiving a wave at one particular corresponding angle of inclination of the wavefront. In transmitted waves, appropriate radiations from the phased array differ by an amount to effect transmission in one particular direction corresponding to the beam port selected for energization by the transmitter.
机译:公开了一种用于提供具有同时多波束能力的宽带真实时间延迟相控天线阵列的光网络(46)。提供网络(46)以用于多个波束端口(48-52M)和多个天线元件(20-24N)之间的连接,以将接收到的射频(RF)平面波前转换为一个且只有一个波束的多个同相信号端口(48-52M)。相反,对于透射波来说是正确的。网络(46)包括用于由RF能量调制的每个天线元件(20-24N)的激光器(30-34N),该激光器通过经由与光组合器(40-44M)连接的分光器(35-39N)分离并延迟。不同长度的纤维(46)。然后,基本上所有的信号同相到达一个特定的波束端口(48-52M),用于接收器(56-60M),以一个特定的波前倾斜角接收波。在发射波中,来自相控阵的适当辐射相差一个量,以实现在一个特定方向上的发射,该方向对应于为发射器选择的激励光束端口。

著录项

  • 公开/公告号EP0257964A3

    专利类型

  • 公开/公告日1989-10-18

    原文格式PDF

  • 申请/专利权人 INTERNATIONAL STANDARD ELECTRICCORPORATION;

    申请/专利号EP19870307290

  • 发明设计人 CHAVEZ JOSEPH DAVID;

    申请日1987-08-18

  • 分类号H01Q3/34;

  • 国家 EP

  • 入库时间 2022-08-22 06:34:43

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